diff options
Diffstat (limited to 'Build/source/texk')
-rw-r--r-- | Build/source/texk/dvipdfm-x/ChangeLog | 8 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/dpxcrypt.c | 1608 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/dpxcrypt.h | 62 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/dvi.c | 31 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/dvi.h | 9 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/dvipdfmx.c | 50 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/jpegimage.c | 62 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/pdfencrypt.c | 994 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/pdfencrypt.h | 8 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/pdfobj.c | 40 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/pngimage.c | 56 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/unicode.c | 41 | ||||
-rw-r--r-- | Build/source/texk/dvipdfm-x/unicode.h | 4 |
13 files changed, 2491 insertions, 482 deletions
diff --git a/Build/source/texk/dvipdfm-x/ChangeLog b/Build/source/texk/dvipdfm-x/ChangeLog index 8d85551c347..ac980767bcc 100644 --- a/Build/source/texk/dvipdfm-x/ChangeLog +++ b/Build/source/texk/dvipdfm-x/ChangeLog @@ -1,3 +1,11 @@ +2015-07-04 Shunsaku Hirata <shunsaku.hirata74@gmail.com> + + * jpegimage.c: Use size_t, uint32_t,... instead of short/long int. + * dpxcrypt.c/h, dvi.c/h, pdfencrypt.c/h, dvipdfmx.c, pdfobj.c: + Add AES encryption support in PDF ecryption. + * pngimage.c : Support images with 16 bit depth. + * unicode.c/h: Add UTF-8 decoding function. + 2015-05-23 Jiang Jiang <gzjjgod@gmail.com> * dvi.c: Fix Type1 font encoding and metrics. diff --git a/Build/source/texk/dvipdfm-x/dpxcrypt.c b/Build/source/texk/dvipdfm-x/dpxcrypt.c index 3f972205520..b1838e744bc 100644 --- a/Build/source/texk/dvipdfm-x/dpxcrypt.c +++ b/Build/source/texk/dvipdfm-x/dpxcrypt.c @@ -26,7 +26,11 @@ # include <sys/types.h> #endif #include <string.h> +#include <stdlib.h> +#include "mem.h" +#include "error.h" +#include "numbers.h" #include "dpxcrypt.h" static void _gcry_burn_stack (int bytes) @@ -38,8 +42,10 @@ static void _gcry_burn_stack (int bytes) if (bytes > 0) _gcry_burn_stack(bytes); } + /* Rotate a 32 bit integer by n bytes */ #define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) ) +#define ror(x,n) ( ((x) >> ((n)&(32-1))) | ((x) << ((32-(n))&(32-1))) ) /* * The following codes for MD5 Message-Digest Algorithm were modified @@ -69,10 +75,10 @@ static void _gcry_burn_stack (int bytes) void MD5_init (MD5_CONTEXT *ctx) { - ctx->A = 0x67452301; - ctx->B = 0xefcdab89; - ctx->C = 0x98badcfe; - ctx->D = 0x10325476; + ctx->A = 0x67452301U; + ctx->B = 0xefcdab89U; + ctx->C = 0x98badcfeU; + ctx->D = 0x10325476U; ctx->nblocks = 0; ctx->count = 0; @@ -91,10 +97,10 @@ void MD5_init (MD5_CONTEXT *ctx) static void transform (MD5_CONTEXT *ctx, const unsigned char *data) { uint32_t correct_words[16]; - register uint32_t A = ctx->A; - register uint32_t B = ctx->B; - register uint32_t C = ctx->C; - register uint32_t D = ctx->D; + uint32_t A = ctx->A; + uint32_t B = ctx->B; + uint32_t C = ctx->C; + uint32_t D = ctx->D; uint32_t *cwp = correct_words; #ifdef WORDS_BIGENDIAN @@ -237,7 +243,7 @@ void MD5_write (MD5_CONTEXT *hd, const unsigned char *inbuf, unsigned long inlen void MD5_final (unsigned char *outbuf, MD5_CONTEXT *hd) { - unsigned long t, msb, lsb; + uint32_t t, msb, lsb; unsigned char *p; MD5_write(hd, NULL, 0); /* flush */ @@ -291,6 +297,822 @@ void MD5_final (unsigned char *outbuf, MD5_CONTEXT *hd) } /* + * The following codes for the SHA256 hash function are taken from + * libgrypt-1.6.3. (slightly modified) + * + * sha256.c - SHA256 hash function + * Copyright (C) 2003, 2006, 2008, 2009 Free Software Foundation, Inc. + * + * This file is part of Libgcrypt. + * + * Libgcrypt is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * Libgcrypt is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + + +static u32 +_gcry_bswap32(u32 x) +{ + return ((rol(x, 8) & 0x00ff00ffL) | (ror(x, 8) & 0xff00ff00L)); +} + +static u64 +_gcry_bswap64(u64 x) +{ + return ((u64)_gcry_bswap32(x) << 32) | (_gcry_bswap32(x >> 32)); +} + +/* Endian dependent byte swap operations. */ +#ifdef WORDS_BIGENDIAN +# define le_bswap32(x) _gcry_bswap32(x) +# define be_bswap32(x) ((u32)(x)) +# define le_bswap64(x) _gcry_bswap64(x) +# define be_bswap64(x) ((u64)(x)) +#else +# define le_bswap32(x) ((u32)(x)) +# define be_bswap32(x) _gcry_bswap32(x) +# define le_bswap64(x) ((u64)(x)) +# define be_bswap64(x) _gcry_bswap64(x) +#endif + +static u32 buf_get_be32(const void *_buf) +{ + const byte *in = _buf; + return ((u32)in[0] << 24) | ((u32)in[1] << 16) | \ + ((u32)in[2] << 8) | (u32)in[3]; +} + +static void buf_put_be32(void *_buf, u32 val) +{ + byte *out = _buf; + out[0] = val >> 24; + out[1] = val >> 16; + out[2] = val >> 8; + out[3] = val; +} + +static u64 buf_get_be64(const void *_buf) +{ + const byte *in = _buf; + return ((u64)in[0] << 56) | ((u64)in[1] << 48) | \ + ((u64)in[2] << 40) | ((u64)in[3] << 32) | \ + ((u64)in[4] << 24) | ((u64)in[5] << 16) | \ + ((u64)in[6] << 8) | (u64)in[7]; +} + +static void buf_put_be64(void *_buf, u64 val) +{ + byte *out = _buf; + out[0] = val >> 56; + out[1] = val >> 48; + out[2] = val >> 40; + out[3] = val >> 32; + out[4] = val >> 24; + out[5] = val >> 16; + out[6] = val >> 8; + out[7] = val; +} + +void +SHA256_init (SHA256_CONTEXT *hd) +{ + hd->h0 = 0x6a09e667; + hd->h1 = 0xbb67ae85; + hd->h2 = 0x3c6ef372; + hd->h3 = 0xa54ff53a; + hd->h4 = 0x510e527f; + hd->h5 = 0x9b05688c; + hd->h6 = 0x1f83d9ab; + hd->h7 = 0x5be0cd19; + + hd->nblocks = 0; + hd->count = 0; +} + +/* + Transform the message X which consists of 16 32-bit-words. See FIPS + 180-2 for details. */ +#define S0(x) (ror ((x), 7) ^ ror ((x), 18) ^ ((x) >> 3)) /* (4.6) */ +#define S1(x) (ror ((x), 17) ^ ror ((x), 19) ^ ((x) >> 10)) /* (4.7) */ +#define R(a,b,c,d,e,f,g,h,k,w) do \ + { \ + t1 = (h) + Sum1((e)) + Cho((e),(f),(g)) + (k) + (w); \ + t2 = Sum0((a)) + Maj((a),(b),(c)); \ + h = g; \ + g = f; \ + f = e; \ + e = d + t1; \ + d = c; \ + c = b; \ + b = a; \ + a = t1 + t2; \ + } while (0) + + +#define Cho(x,y,z) ((z) ^ ((x) & ((y) ^ (z)))) +#define Maj(x,y,z) (((x) & (y)) | ((z) & ((x)|(y)))) +#define Sum0(x) (ror((x), 2) ^ ror((x), 13) ^ ror((x), 22)) +#define Sum1(x) (ror((x), 6) ^ ror((x), 11) ^ ror((x), 25)) + +static unsigned int +_SHA256_transform (SHA256_CONTEXT *hd, const unsigned char *data) +{ + static const u32 K[64] = { + 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, + 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, + 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, + 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, + 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, + 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, + 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, + 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, + 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, + 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, + 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, + 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, + 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, + 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, + 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, + 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 + }; + + u32 a,b,c,d,e,f,g,h,t1,t2; + u32 w[64]; + int i; + + a = hd->h0; + b = hd->h1; + c = hd->h2; + d = hd->h3; + e = hd->h4; + f = hd->h5; + g = hd->h6; + h = hd->h7; + + for (i=0; i < 16; i++) + w[i] = buf_get_be32(data + i * 4); + for (; i < 64; i++) + w[i] = S1(w[i-2]) + w[i-7] + S0(w[i-15]) + w[i-16]; + + for (i=0; i < 64;) + { +#if 0 + R(a,b,c,d,e,f,g,h,K[i],w[i]); + i++; +#else + t1 = h + Sum1 (e) + Cho (e, f, g) + K[i] + w[i]; + t2 = Sum0 (a) + Maj (a, b, c); + d += t1; + h = t1 + t2; + + t1 = g + Sum1 (d) + Cho (d, e, f) + K[i+1] + w[i+1]; + t2 = Sum0 (h) + Maj (h, a, b); + c += t1; + g = t1 + t2; + + t1 = f + Sum1 (c) + Cho (c, d, e) + K[i+2] + w[i+2]; + t2 = Sum0 (g) + Maj (g, h, a); + b += t1; + f = t1 + t2; + + t1 = e + Sum1 (b) + Cho (b, c, d) + K[i+3] + w[i+3]; + t2 = Sum0 (f) + Maj (f, g, h); + a += t1; + e = t1 + t2; + + t1 = d + Sum1 (a) + Cho (a, b, c) + K[i+4] + w[i+4]; + t2 = Sum0 (e) + Maj (e, f, g); + h += t1; + d = t1 + t2; + + t1 = c + Sum1 (h) + Cho (h, a, b) + K[i+5] + w[i+5]; + t2 = Sum0 (d) + Maj (d, e, f); + g += t1; + c = t1 + t2; + + t1 = b + Sum1 (g) + Cho (g, h, a) + K[i+6] + w[i+6]; + t2 = Sum0 (c) + Maj (c, d, e); + f += t1; + b = t1 + t2; + + t1 = a + Sum1 (f) + Cho (f, g, h) + K[i+7] + w[i+7]; + t2 = Sum0 (b) + Maj (b, c, d); + e += t1; + a = t1 + t2; + + i += 8; +#endif + } + + hd->h0 += a; + hd->h1 += b; + hd->h2 += c; + hd->h3 += d; + hd->h4 += e; + hd->h5 += f; + hd->h6 += g; + hd->h7 += h; + + return /*burn_stack*/ 74*4+32; +} +#undef S0 +#undef S1 +#undef R + +void SHA256_write (SHA256_CONTEXT *hd, const unsigned char *inbuf, unsigned long inlen) +{ + unsigned int stack_burn = 0; + + if (hd->count == 64) { /* flush the buffer */ + stack_burn = _SHA256_transform(hd, hd->buf); + _gcry_burn_stack(stack_burn); + hd->count = 0; + hd->nblocks++; + } + if (!inbuf) return; + if (hd->count) { + for (; inlen && hd->count < 64; inlen--) + hd->buf[hd->count++] = *inbuf++; + SHA256_write(hd, NULL, 0); + if (!inlen) return; + } + _gcry_burn_stack(stack_burn); + + while (inlen >= 64) { + stack_burn = _SHA256_transform(hd, inbuf); + hd->count = 0; + hd->nblocks++; + inlen -= 64; + inbuf += 64; + } + for (; inlen && hd->count < 64; inlen--) + hd->buf[hd->count++] = *inbuf++; +} + +/* + The routine finally terminates the computation and returns the + digest. The handle is prepared for a new cycle, but adding bytes + to the handle will the destroy the returned buffer. Returns: 32 + bytes with the message the digest. */ +void +SHA256_final(unsigned char *outbuf, SHA256_CONTEXT *hd) +{ + u32 t, msb, lsb; + unsigned char *p; + unsigned int burn; + + SHA256_write(hd, NULL, 0); /* flush */; + + t = hd->nblocks; + + /* multiply by 64 to make a byte count */ + lsb = t << 6; + msb = t >> 26; + /* add the count */ + t = lsb; + if ((lsb += hd->count) < t) + msb++; + /* multiply by 8 to make a bit count */ + t = lsb; + lsb <<= 3; + msb <<= 3; + msb |= t >> 29; + + if (hd->count < 56) + { /* enough room */ + hd->buf[hd->count++] = 0x80; /* pad */ + while (hd->count < 56) + hd->buf[hd->count++] = 0; /* pad */ + } + else + { /* need one extra block */ + hd->buf[hd->count++] = 0x80; /* pad character */ + while (hd->count < 64) + hd->buf[hd->count++] = 0; + SHA256_write(hd, NULL, 0); /* flush */; + memset (hd->buf, 0, 56 ); /* fill next block with zeroes */ + } + /* append the 64 bit count */ + buf_put_be32(hd->buf + 56, msb); + buf_put_be32(hd->buf + 60, lsb); + burn = _SHA256_transform(hd, hd->buf); + _gcry_burn_stack(burn); + + p = outbuf; +#define X(a) do { *(u32*)p = be_bswap32(hd->h##a); p += 4; } while(0) + X(0); + X(1); + X(2); + X(3); + X(4); + X(5); + X(6); + X(7); +#undef X +} + +#undef Cho +#undef Maj +#undef Sum0 +#undef Sum1 + +/* The following code are taken from libgcrypt-1.6.3. (slightly modified): + * + * sha512.c - SHA384 and SHA512 hash functions + * Copyright (C) 2003, 2008, 2009 Free Software Foundation, Inc. + * + * This file is part of Libgcrypt. + * + * Libgcrypt is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser general Public License as + * published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * Libgcrypt is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#define ROTR(x,n) (((x) >> (n)) | ((x) << (64 - (n)))) +#define Ch(x,y,z) (((x) & (y)) ^ ( ~(x) & (z))) +#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) +#define Sum0(x) (ROTR((x), 28) ^ ROTR((x), 34) ^ ROTR((x), 39)) +#define Sum1(x) (ROTR((x), 14) ^ ROTR((x), 18) ^ ROTR((x), 41)) +#define U64_C(c) (c ## UL) + +void +SHA512_init (SHA512_CONTEXT *ctx) +{ + SHA512_STATE *hd = &ctx->state; + + hd->h0 = U64_C(0x6a09e667f3bcc908); + hd->h1 = U64_C(0xbb67ae8584caa73b); + hd->h2 = U64_C(0x3c6ef372fe94f82b); + hd->h3 = U64_C(0xa54ff53a5f1d36f1); + hd->h4 = U64_C(0x510e527fade682d1); + hd->h5 = U64_C(0x9b05688c2b3e6c1f); + hd->h6 = U64_C(0x1f83d9abfb41bd6b); + hd->h7 = U64_C(0x5be0cd19137e2179); + + ctx->nblocks = 0; + ctx->count = 0; +} + +void +SHA384_init (SHA512_CONTEXT *ctx) +{ + SHA512_STATE *hd = &ctx->state; + + hd->h0 = U64_C(0xcbbb9d5dc1059ed8); + hd->h1 = U64_C(0x629a292a367cd507); + hd->h2 = U64_C(0x9159015a3070dd17); + hd->h3 = U64_C(0x152fecd8f70e5939); + hd->h4 = U64_C(0x67332667ffc00b31); + hd->h5 = U64_C(0x8eb44a8768581511); + hd->h6 = U64_C(0xdb0c2e0d64f98fa7); + hd->h7 = U64_C(0x47b5481dbefa4fa4); + + ctx->nblocks = 0; + ctx->count = 0; +} + + +static const u64 k[] = + { + U64_C(0x428a2f98d728ae22), U64_C(0x7137449123ef65cd), + U64_C(0xb5c0fbcfec4d3b2f), U64_C(0xe9b5dba58189dbbc), + U64_C(0x3956c25bf348b538), U64_C(0x59f111f1b605d019), + U64_C(0x923f82a4af194f9b), U64_C(0xab1c5ed5da6d8118), + U64_C(0xd807aa98a3030242), U64_C(0x12835b0145706fbe), + U64_C(0x243185be4ee4b28c), U64_C(0x550c7dc3d5ffb4e2), + U64_C(0x72be5d74f27b896f), U64_C(0x80deb1fe3b1696b1), + U64_C(0x9bdc06a725c71235), U64_C(0xc19bf174cf692694), + U64_C(0xe49b69c19ef14ad2), U64_C(0xefbe4786384f25e3), + U64_C(0x0fc19dc68b8cd5b5), U64_C(0x240ca1cc77ac9c65), + U64_C(0x2de92c6f592b0275), U64_C(0x4a7484aa6ea6e483), + U64_C(0x5cb0a9dcbd41fbd4), U64_C(0x76f988da831153b5), + U64_C(0x983e5152ee66dfab), U64_C(0xa831c66d2db43210), + U64_C(0xb00327c898fb213f), U64_C(0xbf597fc7beef0ee4), + U64_C(0xc6e00bf33da88fc2), U64_C(0xd5a79147930aa725), + U64_C(0x06ca6351e003826f), U64_C(0x142929670a0e6e70), + U64_C(0x27b70a8546d22ffc), U64_C(0x2e1b21385c26c926), + U64_C(0x4d2c6dfc5ac42aed), U64_C(0x53380d139d95b3df), + U64_C(0x650a73548baf63de), U64_C(0x766a0abb3c77b2a8), + U64_C(0x81c2c92e47edaee6), U64_C(0x92722c851482353b), + U64_C(0xa2bfe8a14cf10364), U64_C(0xa81a664bbc423001), + U64_C(0xc24b8b70d0f89791), U64_C(0xc76c51a30654be30), + U64_C(0xd192e819d6ef5218), U64_C(0xd69906245565a910), + U64_C(0xf40e35855771202a), U64_C(0x106aa07032bbd1b8), + U64_C(0x19a4c116b8d2d0c8), U64_C(0x1e376c085141ab53), + U64_C(0x2748774cdf8eeb99), U64_C(0x34b0bcb5e19b48a8), + U64_C(0x391c0cb3c5c95a63), U64_C(0x4ed8aa4ae3418acb), + U64_C(0x5b9cca4f7763e373), U64_C(0x682e6ff3d6b2b8a3), + U64_C(0x748f82ee5defb2fc), U64_C(0x78a5636f43172f60), + U64_C(0x84c87814a1f0ab72), U64_C(0x8cc702081a6439ec), + U64_C(0x90befffa23631e28), U64_C(0xa4506cebde82bde9), + U64_C(0xbef9a3f7b2c67915), U64_C(0xc67178f2e372532b), + U64_C(0xca273eceea26619c), U64_C(0xd186b8c721c0c207), + U64_C(0xeada7dd6cde0eb1e), U64_C(0xf57d4f7fee6ed178), + U64_C(0x06f067aa72176fba), U64_C(0x0a637dc5a2c898a6), + U64_C(0x113f9804bef90dae), U64_C(0x1b710b35131c471b), + U64_C(0x28db77f523047d84), U64_C(0x32caab7b40c72493), + U64_C(0x3c9ebe0a15c9bebc), U64_C(0x431d67c49c100d4c), + U64_C(0x4cc5d4becb3e42b6), U64_C(0x597f299cfc657e2a), + U64_C(0x5fcb6fab3ad6faec), U64_C(0x6c44198c4a475817) + }; + +/**************** + * Transform the message W which consists of 16 64-bit-words + */ +static unsigned int +__transform (SHA512_STATE *hd, const unsigned char *data) +{ + u64 a, b, c, d, e, f, g, h; + u64 w[16]; + int t; + + /* get values from the chaining vars */ + a = hd->h0; + b = hd->h1; + c = hd->h2; + d = hd->h3; + e = hd->h4; + f = hd->h5; + g = hd->h6; + h = hd->h7; + + for ( t = 0; t < 16; t++ ) + w[t] = buf_get_be64(data + t * 8); + +#define S0(x) (ROTR((x),1) ^ ROTR((x),8) ^ ((x)>>7)) +#define S1(x) (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6)) + + + for (t = 0; t < 80 - 16; ) + { + u64 t1, t2; + + /* Performance on a AMD Athlon(tm) Dual Core Processor 4050e + with gcc 4.3.3 using gcry_md_hash_buffer of each 10000 bytes + initialized to 0,1,2,3...255,0,... and 1000 iterations: + + Not unrolled with macros: 440ms + Unrolled with macros: 350ms + Unrolled with inline: 330ms + */ +#if 0 /* Not unrolled. */ + t1 = h + Sum1 (e) + Ch (e, f, g) + k[t] + w[t%16]; + w[t%16] += S1 (w[(t - 2)%16]) + w[(t - 7)%16] + S0 (w[(t - 15)%16]); + t2 = Sum0 (a) + Maj (a, b, c); + h = g; + g = f; + f = e; + e = d + t1; + d = c; + c = b; + b = a; + a = t1 + t2; + t++; +#else /* Unrolled to interweave the chain variables. */ + t1 = h + Sum1 (e) + Ch (e, f, g) + k[t] + w[0]; + w[0] += S1 (w[14]) + w[9] + S0 (w[1]); + t2 = Sum0 (a) + Maj (a, b, c); + d += t1; + h = t1 + t2; + + t1 = g + Sum1 (d) + Ch (d, e, f) + k[t+1] + w[1]; + w[1] += S1 (w[15]) + w[10] + S0 (w[2]); + t2 = Sum0 (h) + Maj (h, a, b); + c += t1; + g = t1 + t2; + + t1 = f + Sum1 (c) + Ch (c, d, e) + k[t+2] + w[2]; + w[2] += S1 (w[0]) + w[11] + S0 (w[3]); + t2 = Sum0 (g) + Maj (g, h, a); + b += t1; + f = t1 + t2; + + t1 = e + Sum1 (b) + Ch (b, c, d) + k[t+3] + w[3]; + w[3] += S1 (w[1]) + w[12] + S0 (w[4]); + t2 = Sum0 (f) + Maj (f, g, h); + a += t1; + e = t1 + t2; + + t1 = d + Sum1 (a) + Ch (a, b, c) + k[t+4] + w[4]; + w[4] += S1 (w[2]) + w[13] + S0 (w[5]); + t2 = Sum0 (e) + Maj (e, f, g); + h += t1; + d = t1 + t2; + + t1 = c + Sum1 (h) + Ch (h, a, b) + k[t+5] + w[5]; + w[5] += S1 (w[3]) + w[14] + S0 (w[6]); + t2 = Sum0 (d) + Maj (d, e, f); + g += t1; + c = t1 + t2; + + t1 = b + Sum1 (g) + Ch (g, h, a) + k[t+6] + w[6]; + w[6] += S1 (w[4]) + w[15] + S0 (w[7]); + t2 = Sum0 (c) + Maj (c, d, e); + f += t1; + b = t1 + t2; + + t1 = a + Sum1 (f) + Ch (f, g, h) + k[t+7] + w[7]; + w[7] += S1 (w[5]) + w[0] + S0 (w[8]); + t2 = Sum0 (b) + Maj (b, c, d); + e += t1; + a = t1 + t2; + + t1 = h + Sum1 (e) + Ch (e, f, g) + k[t+8] + w[8]; + w[8] += S1 (w[6]) + w[1] + S0 (w[9]); + t2 = Sum0 (a) + Maj (a, b, c); + d += t1; + h = t1 + t2; + + t1 = g + Sum1 (d) + Ch (d, e, f) + k[t+9] + w[9]; + w[9] += S1 (w[7]) + w[2] + S0 (w[10]); + t2 = Sum0 (h) + Maj (h, a, b); + c += t1; + g = t1 + t2; + + t1 = f + Sum1 (c) + Ch (c, d, e) + k[t+10] + w[10]; + w[10] += S1 (w[8]) + w[3] + S0 (w[11]); + t2 = Sum0 (g) + Maj (g, h, a); + b += t1; + f = t1 + t2; + + t1 = e + Sum1 (b) + Ch (b, c, d) + k[t+11] + w[11]; + w[11] += S1 (w[9]) + w[4] + S0 (w[12]); + t2 = Sum0 (f) + Maj (f, g, h); + a += t1; + e = t1 + t2; + + t1 = d + Sum1 (a) + Ch (a, b, c) + k[t+12] + w[12]; + w[12] += S1 (w[10]) + w[5] + S0 (w[13]); + t2 = Sum0 (e) + Maj (e, f, g); + h += t1; + d = t1 + t2; + + t1 = c + Sum1 (h) + Ch (h, a, b) + k[t+13] + w[13]; + w[13] += S1 (w[11]) + w[6] + S0 (w[14]); + t2 = Sum0 (d) + Maj (d, e, f); + g += t1; + c = t1 + t2; + + t1 = b + Sum1 (g) + Ch (g, h, a) + k[t+14] + w[14]; + w[14] += S1 (w[12]) + w[7] + S0 (w[15]); + t2 = Sum0 (c) + Maj (c, d, e); + f += t1; + b = t1 + t2; + + t1 = a + Sum1 (f) + Ch (f, g, h) + k[t+15] + w[15]; + w[15] += S1 (w[13]) + w[8] + S0 (w[0]); + t2 = Sum0 (b) + Maj (b, c, d); + e += t1; + a = t1 + t2; + + t += 16; +#endif + } + + for (; t < 80; ) + { + u64 t1, t2; + +#if 0 /* Not unrolled. */ + t1 = h + Sum1 (e) + Ch (e, f, g) + k[t] + w[t%16]; + t2 = Sum0 (a) + Maj (a, b, c); + h = g; + g = f; + f = e; + e = d + t1; + d = c; + c = b; + b = a; + a = t1 + t2; + t++; +#else /* Unrolled to interweave the chain variables. */ + t1 = h + Sum1 (e) + Ch (e, f, g) + k[t] + w[0]; + t2 = Sum0 (a) + Maj (a, b, c); + d += t1; + h = t1 + t2; + + t1 = g + Sum1 (d) + Ch (d, e, f) + k[t+1] + w[1]; + t2 = Sum0 (h) + Maj (h, a, b); + c += t1; + g = t1 + t2; + + t1 = f + Sum1 (c) + Ch (c, d, e) + k[t+2] + w[2]; + t2 = Sum0 (g) + Maj (g, h, a); + b += t1; + f = t1 + t2; + + t1 = e + Sum1 (b) + Ch (b, c, d) + k[t+3] + w[3]; + t2 = Sum0 (f) + Maj (f, g, h); + a += t1; + e = t1 + t2; + + t1 = d + Sum1 (a) + Ch (a, b, c) + k[t+4] + w[4]; + t2 = Sum0 (e) + Maj (e, f, g); + h += t1; + d = t1 + t2; + + t1 = c + Sum1 (h) + Ch (h, a, b) + k[t+5] + w[5]; + t2 = Sum0 (d) + Maj (d, e, f); + g += t1; + c = t1 + t2; + + t1 = b + Sum1 (g) + Ch (g, h, a) + k[t+6] + w[6]; + t2 = Sum0 (c) + Maj (c, d, e); + f += t1; + b = t1 + t2; + + t1 = a + Sum1 (f) + Ch (f, g, h) + k[t+7] + w[7]; + t2 = Sum0 (b) + Maj (b, c, d); + e += t1; + a = t1 + t2; + + t1 = h + Sum1 (e) + Ch (e, f, g) + k[t+8] + w[8]; + t2 = Sum0 (a) + Maj (a, b, c); + d += t1; + h = t1 + t2; + + t1 = g + Sum1 (d) + Ch (d, e, f) + k[t+9] + w[9]; + t2 = Sum0 (h) + Maj (h, a, b); + c += t1; + g = t1 + t2; + + t1 = f + Sum1 (c) + Ch (c, d, e) + k[t+10] + w[10]; + t2 = Sum0 (g) + Maj (g, h, a); + b += t1; + f = t1 + t2; + + t1 = e + Sum1 (b) + Ch (b, c, d) + k[t+11] + w[11]; + t2 = Sum0 (f) + Maj (f, g, h); + a += t1; + e = t1 + t2; + + t1 = d + Sum1 (a) + Ch (a, b, c) + k[t+12] + w[12]; + t2 = Sum0 (e) + Maj (e, f, g); + h += t1; + d = t1 + t2; + + t1 = c + Sum1 (h) + Ch (h, a, b) + k[t+13] + w[13]; + t2 = Sum0 (d) + Maj (d, e, f); + g += t1; + c = t1 + t2; + + t1 = b + Sum1 (g) + Ch (g, h, a) + k[t+14] + w[14]; + t2 = Sum0 (c) + Maj (c, d, e); + f += t1; + b = t1 + t2; + + t1 = a + Sum1 (f) + Ch (f, g, h) + k[t+15] + w[15]; + t2 = Sum0 (b) + Maj (b, c, d); + e += t1; + a = t1 + t2; + + t += 16; +#endif + } + + /* Update chaining vars. */ + hd->h0 += a; + hd->h1 += b; + hd->h2 += c; + hd->h3 += d; + hd->h4 += e; + hd->h5 += f; + hd->h6 += g; + hd->h7 += h; + + return /* burn_stack */ (8 + 16) * sizeof(u64) + sizeof(u32) + + 3 * sizeof(void*); +} + + +static unsigned int +_SHA512_transform (SHA512_CONTEXT *ctx, const unsigned char *data) +{ + return __transform(&ctx->state, data) + 3 * sizeof(void*); +} + +/* The routine final terminates the computation and + * returns the digest. + * The handle is prepared for a new cycle, but adding bytes to the + * handle will the destroy the returned buffer. + * Returns: 64 bytes representing the digest. When used for sha384, + * we take the leftmost 48 of those bytes. + */ + +void SHA512_write (SHA512_CONTEXT *hd, const unsigned char *inbuf, unsigned long inlen) +{ + unsigned int stack_burn = 0; + + if (hd->count == 128) { /* flush the buffer */ + stack_burn = _SHA512_transform(hd, hd->buf); + _gcry_burn_stack(stack_burn); + hd->count = 0; + hd->nblocks++; + } + if (!inbuf) return; + if (hd->count) { + for (; inlen && hd->count < 128; inlen--) + hd->buf[hd->count++] = *inbuf++; + SHA512_write(hd, NULL, 0); + if (!inlen) return; + } + _gcry_burn_stack(stack_burn); + + while (inlen >= 128) { + stack_burn = _SHA512_transform(hd, inbuf); + hd->count = 0; + hd->nblocks++; + inlen -= 128; + inbuf += 128; + } + for (; inlen && hd->count < 128; inlen--) + hd->buf[hd->count++] = *inbuf++; +} + +void +SHA512_final (unsigned char *outbuf, SHA512_CONTEXT *hd) +{ + unsigned int stack_burn_depth; + u64 t, msb, lsb; + unsigned char *p; + + SHA512_write(hd, NULL, 0); /* flush */ ; + + t = hd->nblocks; + /* multiply by 128 to make a byte count */ + lsb = t << 7; + msb = t >> 57; + /* add the count */ + t = lsb; + if ((lsb += hd->count) < t) + msb++; + /* multiply by 8 to make a bit count */ + t = lsb; + lsb <<= 3; + msb <<= 3; + msb |= t >> 61; + + if (hd->count < 112) + { /* enough room */ + hd->buf[hd->count++] = 0x80; /* pad */ + while (hd->count < 112) + hd->buf[hd->count++] = 0; /* pad */ + } + else + { /* need one extra block */ + hd->buf[hd->count++] = 0x80; /* pad character */ + while (hd->count < 128) + hd->buf[hd->count++] = 0; + SHA512_write(hd, NULL, 0); /* flush */ ; + memset(hd->buf, 0, 112); /* fill next block with zeroes */ + } + /* append the 128 bit count */ + buf_put_be64(hd->buf + 112, msb); + buf_put_be64(hd->buf + 120, lsb); + stack_burn_depth = _SHA512_transform(hd, hd->buf); + _gcry_burn_stack(stack_burn_depth); + + p = outbuf; +#define X(a) do { *(u64*)p = be_bswap64(hd->state.h##a) ; p += 8; } while (0) + X (0); + X (1); + X (2); + X (3); + X (4); + X (5); + /* Note that these last two chunks are included even for SHA384. + We just ignore them. */ + X (6); + X (7); +#undef X +} + +#undef ROTR +#undef Ch +#undef Maj +#undef Sum0 +#undef Sum1 + +/* * The following codes for the arcfour stream cipher were modified * by Jin-Hwan Cho on August 5, 2003 based on libgrypt-1.1.42. * @@ -316,12 +1138,12 @@ void MD5_final (unsigned char *outbuf, MD5_CONTEXT *hd) * heavily modified for GnuPG by Werner Koch <wk@gnupg.org> */ -static void do_encrypt_stream (ARC4_KEY *ctx, unsigned char *outbuf, const unsigned char *inbuf, unsigned long len) +static void do_encrypt_stream (ARC4_CONTEXT *ctx, unsigned char *outbuf, const unsigned char *inbuf, unsigned long len) { - register int i = ctx->idx_i; - register int j = ctx->idx_j; - register unsigned char *sbox = ctx->sbox; - register int t; + int i = ctx->idx_i; + int j = ctx->idx_j; + unsigned char *sbox = ctx->sbox; + int t; while (len--) { i++; @@ -336,13 +1158,13 @@ static void do_encrypt_stream (ARC4_KEY *ctx, unsigned char *outbuf, const unsig ctx->idx_j = j; } -void ARC4 (ARC4_KEY *ctx, unsigned long len, const unsigned char *inbuf, unsigned char *outbuf) +void ARC4 (ARC4_CONTEXT *ctx, unsigned long len, const unsigned char *inbuf, unsigned char *outbuf) { do_encrypt_stream(ctx, outbuf, inbuf, len); _gcry_burn_stack(64); } -static void do_arcfour_setkey (ARC4_KEY *ctx, const unsigned char *key, unsigned int keylen) +static void do_arcfour_setkey (ARC4_CONTEXT *ctx, const unsigned char *key, unsigned int keylen) { int i, j; unsigned char karr[256]; @@ -360,8 +1182,760 @@ static void do_arcfour_setkey (ARC4_KEY *ctx, const unsigned char *key, unsigned memset(karr, 0, 256); } -void ARC4_set_key (ARC4_KEY *ctx, unsigned int keylen, const unsigned char *key) +void ARC4_set_key (ARC4_CONTEXT *ctx, unsigned int keylen, const unsigned char *key) { do_arcfour_setkey(ctx, key, keylen); _gcry_burn_stack(300); } + +/* AES Support */ + +static int rijndaelSetupEncrypt(u32 *rk, const u8 *key, int keybits); +static void rijndaelEncrypt(const u32 *rk, int nrounds, + const u8 plaintext[16], u8 ciphertext[16]); + +#define KEYLENGTH(keybits) ((keybits)/8) +#define RKLENGTH(keybits) ((keybits)/8+28) +#define NROUNDS(keybits) ((keybits)/32+6) + +#define KEYBITS 256 + +typedef struct { + int nrounds; + u32 rk[60]; + unsigned char iv[AES_BLOCKSIZE]; +} AES_CONTEXT; + +void +AES_ecb_encrypt (const unsigned char *key, size_t key_len, + const unsigned char *plain, size_t plain_len, + unsigned char **cipher, size_t *cipher_len) +{ + AES_CONTEXT *ctx, aes; + const unsigned char *inptr; + unsigned char *outptr; + size_t len; + + ctx = &aes; + + *cipher_len = plain_len; + *cipher = NEW(*cipher_len, unsigned char); + + ctx->nrounds = rijndaelSetupEncrypt(ctx->rk, key, key_len * 8); + + inptr = plain; outptr = *cipher; + for (len = plain_len; len >= AES_BLOCKSIZE; len -= AES_BLOCKSIZE) { + rijndaelEncrypt(ctx->rk, ctx->nrounds, inptr, outptr); + inptr += AES_BLOCKSIZE; + outptr += AES_BLOCKSIZE; + } + if (len > 0) { + unsigned char block[AES_BLOCKSIZE]; + + memcpy(block, inptr, len); + rijndaelEncrypt(ctx->rk, ctx->nrounds, block, outptr); + inptr += len; + outptr += AES_BLOCKSIZE; + } +} + +/* NULL iv means here "use random IV". */ +void +AES_cbc_encrypt (const unsigned char *key, size_t key_len, + const unsigned char *iv, int padding, + const unsigned char *plain, size_t plain_len, + unsigned char **cipher, size_t *cipher_len) +{ + AES_CONTEXT *ctx, aes; + const unsigned char *inptr; + unsigned char *outptr, block[AES_BLOCKSIZE]; + size_t len; + int i; + int padbytes; + + ctx = &aes; + + if (iv) + memcpy(ctx->iv, iv, AES_BLOCKSIZE); + else { + for (i = 0; i < AES_BLOCKSIZE; i++) + ctx->iv[i] = rand() % 256; + } + /* 16 bytes aligned. + * Note that when padding is enabled there can be excess 16-byte + * filled with 0x10. It occurs when size of the input data is multiple + * of 16. + */ + padbytes = padding ? AES_BLOCKSIZE - (plain_len % AES_BLOCKSIZE) : \ + ((plain_len % AES_BLOCKSIZE) ? \ + AES_BLOCKSIZE - (plain_len % AES_BLOCKSIZE) : 0); + + /* We do NOT write IV to the output stream if IV is explicitly specified. */ + *cipher_len = plain_len + (iv ? 0 : AES_BLOCKSIZE) + padbytes; + *cipher = NEW(*cipher_len, unsigned char); + + ctx->nrounds = rijndaelSetupEncrypt(ctx->rk, key, key_len * 8); + + inptr = plain; outptr = *cipher; + if (!iv) { + memcpy(outptr, ctx->iv, AES_BLOCKSIZE); + outptr += AES_BLOCKSIZE; + } + for (len = plain_len; len >= AES_BLOCKSIZE; len -= AES_BLOCKSIZE) { + for (i = 0; i < AES_BLOCKSIZE; i++) + block[i] = inptr[i] ^ ctx->iv[i]; + rijndaelEncrypt(ctx->rk, ctx->nrounds, block, outptr); + memcpy(ctx->iv, outptr, AES_BLOCKSIZE); + inptr += AES_BLOCKSIZE; + outptr += AES_BLOCKSIZE; + } + if (len > 0 || padding) { + for (i = 0; i < len; i++) + block[i] = inptr[i] ^ ctx->iv[i]; + for (i = len; i < AES_BLOCKSIZE; i++) + block[i] = padbytes ^ ctx->iv[i]; + rijndaelEncrypt(ctx->rk, ctx->nrounds, block, outptr); + memcpy(ctx->iv, outptr, AES_BLOCKSIZE); + inptr += AES_BLOCKSIZE; + outptr += AES_BLOCKSIZE; + } +} + +/* The following section contains a Rijndael encryption implementation + * based on code from Philip J. Erdelsky's public domain one. + * They can be obtained from + * + * http://www.efgh.com/software/rijndael.htm + * http://www.efgh.com/software/rijndael.txt + */ + +#define FULL_UNROLL + +static const u32 Te0[256] = +{ + 0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU, + 0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U, + 0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU, + 0xe7fefe19U, 0xb5d7d762U, 0x4dababe6U, 0xec76769aU, + 0x8fcaca45U, 0x1f82829dU, 0x89c9c940U, 0xfa7d7d87U, + 0xeffafa15U, 0xb25959ebU, 0x8e4747c9U, 0xfbf0f00bU, + 0x41adadecU, 0xb3d4d467U, 0x5fa2a2fdU, 0x45afafeaU, + 0x239c9cbfU, 0x53a4a4f7U, 0xe4727296U, 0x9bc0c05bU, + 0x75b7b7c2U, 0xe1fdfd1cU, 0x3d9393aeU, 0x4c26266aU, + 0x6c36365aU, 0x7e3f3f41U, 0xf5f7f702U, 0x83cccc4fU, + 0x6834345cU, 0x51a5a5f4U, 0xd1e5e534U, 0xf9f1f108U, + 0xe2717193U, 0xabd8d873U, 0x62313153U, 0x2a15153fU, + 0x0804040cU, 0x95c7c752U, 0x46232365U, 0x9dc3c35eU, + 0x30181828U, 0x379696a1U, 0x0a05050fU, 0x2f9a9ab5U, + 0x0e070709U, 0x24121236U, 0x1b80809bU, 0xdfe2e23dU, + 0xcdebeb26U, 0x4e272769U, 0x7fb2b2cdU, 0xea75759fU, + 0x1209091bU, 0x1d83839eU, 0x582c2c74U, 0x341a1a2eU, + 0x361b1b2dU, 0xdc6e6eb2U, 0xb45a5aeeU, 0x5ba0a0fbU, + 0xa45252f6U, 0x763b3b4dU, 0xb7d6d661U, 0x7db3b3ceU, + 0x5229297bU, 0xdde3e33eU, 0x5e2f2f71U, 0x13848497U, + 0xa65353f5U, 0xb9d1d168U, 0x00000000U, 0xc1eded2cU, + 0x40202060U, 0xe3fcfc1fU, 0x79b1b1c8U, 0xb65b5bedU, + 0xd46a6abeU, 0x8dcbcb46U, 0x67bebed9U, 0x7239394bU, + 0x944a4adeU, 0x984c4cd4U, 0xb05858e8U, 0x85cfcf4aU, + 0xbbd0d06bU, 0xc5efef2aU, 0x4faaaae5U, 0xedfbfb16U, + 0x864343c5U, 0x9a4d4dd7U, 0x66333355U, 0x11858594U, + 0x8a4545cfU, 0xe9f9f910U, 0x04020206U, 0xfe7f7f81U, + 0xa05050f0U, 0x783c3c44U, 0x259f9fbaU, 0x4ba8a8e3U, + 0xa25151f3U, 0x5da3a3feU, 0x804040c0U, 0x058f8f8aU, + 0x3f9292adU, 0x219d9dbcU, 0x70383848U, 0xf1f5f504U, + 0x63bcbcdfU, 0x77b6b6c1U, 0xafdada75U, 0x42212163U, + 0x20101030U, 0xe5ffff1aU, 0xfdf3f30eU, 0xbfd2d26dU, + 0x81cdcd4cU, 0x180c0c14U, 0x26131335U, 0xc3ecec2fU, + 0xbe5f5fe1U, 0x359797a2U, 0x884444ccU, 0x2e171739U, + 0x93c4c457U, 0x55a7a7f2U, 0xfc7e7e82U, 0x7a3d3d47U, + 0xc86464acU, 0xba5d5de7U, 0x3219192bU, 0xe6737395U, + 0xc06060a0U, 0x19818198U, 0x9e4f4fd1U, 0xa3dcdc7fU, + 0x44222266U, 0x542a2a7eU, 0x3b9090abU, 0x0b888883U, + 0x8c4646caU, 0xc7eeee29U, 0x6bb8b8d3U, 0x2814143cU, + 0xa7dede79U, 0xbc5e5ee2U, 0x160b0b1dU, 0xaddbdb76U, + 0xdbe0e03bU, 0x64323256U, 0x743a3a4eU, 0x140a0a1eU, + 0x924949dbU, 0x0c06060aU, 0x4824246cU, 0xb85c5ce4U, + 0x9fc2c25dU, 0xbdd3d36eU, 0x43acacefU, 0xc46262a6U, + 0x399191a8U, 0x319595a4U, 0xd3e4e437U, 0xf279798bU, + 0xd5e7e732U, 0x8bc8c843U, 0x6e373759U, 0xda6d6db7U, + 0x018d8d8cU, 0xb1d5d564U, 0x9c4e4ed2U, 0x49a9a9e0U, + 0xd86c6cb4U, 0xac5656faU, 0xf3f4f407U, 0xcfeaea25U, + 0xca6565afU, 0xf47a7a8eU, 0x47aeaee9U, 0x10080818U, + 0x6fbabad5U, 0xf0787888U, 0x4a25256fU, 0x5c2e2e72U, + 0x381c1c24U, 0x57a6a6f1U, 0x73b4b4c7U, 0x97c6c651U, + 0xcbe8e823U, 0xa1dddd7cU, 0xe874749cU, 0x3e1f1f21U, + 0x964b4bddU, 0x61bdbddcU, 0x0d8b8b86U, 0x0f8a8a85U, + 0xe0707090U, 0x7c3e3e42U, 0x71b5b5c4U, 0xcc6666aaU, + 0x904848d8U, 0x06030305U, 0xf7f6f601U, 0x1c0e0e12U, + 0xc26161a3U, 0x6a35355fU, 0xae5757f9U, 0x69b9b9d0U, + 0x17868691U, 0x99c1c158U, 0x3a1d1d27U, 0x279e9eb9U, + 0xd9e1e138U, 0xebf8f813U, 0x2b9898b3U, 0x22111133U, + 0xd26969bbU, 0xa9d9d970U, 0x078e8e89U, 0x339494a7U, + 0x2d9b9bb6U, 0x3c1e1e22U, 0x15878792U, 0xc9e9e920U, + 0x87cece49U, 0xaa5555ffU, 0x50282878U, 0xa5dfdf7aU, + 0x038c8c8fU, 0x59a1a1f8U, 0x09898980U, 0x1a0d0d17U, + 0x65bfbfdaU, 0xd7e6e631U, 0x844242c6U, 0xd06868b8U, + 0x824141c3U, 0x299999b0U, 0x5a2d2d77U, 0x1e0f0f11U, + 0x7bb0b0cbU, 0xa85454fcU, 0x6dbbbbd6U, 0x2c16163aU, +}; + +static const u32 Te1[256] = +{ + 0xa5c66363U, 0x84f87c7cU, 0x99ee7777U, 0x8df67b7bU, + 0x0dfff2f2U, 0xbdd66b6bU, 0xb1de6f6fU, 0x5491c5c5U, + 0x50603030U, 0x03020101U, 0xa9ce6767U, 0x7d562b2bU, + 0x19e7fefeU, 0x62b5d7d7U, 0xe64dababU, 0x9aec7676U, + 0x458fcacaU, 0x9d1f8282U, 0x4089c9c9U, 0x87fa7d7dU, + 0x15effafaU, 0xebb25959U, 0xc98e4747U, 0x0bfbf0f0U, + 0xec41adadU, 0x67b3d4d4U, 0xfd5fa2a2U, 0xea45afafU, + 0xbf239c9cU, 0xf753a4a4U, 0x96e47272U, 0x5b9bc0c0U, + 0xc275b7b7U, 0x1ce1fdfdU, 0xae3d9393U, 0x6a4c2626U, + 0x5a6c3636U, 0x417e3f3fU, 0x02f5f7f7U, 0x4f83ccccU, + 0x5c683434U, 0xf451a5a5U, 0x34d1e5e5U, 0x08f9f1f1U, + 0x93e27171U, 0x73abd8d8U, 0x53623131U, 0x3f2a1515U, + 0x0c080404U, 0x5295c7c7U, 0x65462323U, 0x5e9dc3c3U, + 0x28301818U, 0xa1379696U, 0x0f0a0505U, 0xb52f9a9aU, + 0x090e0707U, 0x36241212U, 0x9b1b8080U, 0x3ddfe2e2U, + 0x26cdebebU, 0x694e2727U, 0xcd7fb2b2U, 0x9fea7575U, + 0x1b120909U, 0x9e1d8383U, 0x74582c2cU, 0x2e341a1aU, + 0x2d361b1bU, 0xb2dc6e6eU, 0xeeb45a5aU, 0xfb5ba0a0U, + 0xf6a45252U, 0x4d763b3bU, 0x61b7d6d6U, 0xce7db3b3U, + 0x7b522929U, 0x3edde3e3U, 0x715e2f2fU, 0x97138484U, + 0xf5a65353U, 0x68b9d1d1U, 0x00000000U, 0x2cc1ededU, + 0x60402020U, 0x1fe3fcfcU, 0xc879b1b1U, 0xedb65b5bU, + 0xbed46a6aU, 0x468dcbcbU, 0xd967bebeU, 0x4b723939U, + 0xde944a4aU, 0xd4984c4cU, 0xe8b05858U, 0x4a85cfcfU, + 0x6bbbd0d0U, 0x2ac5efefU, 0xe54faaaaU, 0x16edfbfbU, + 0xc5864343U, 0xd79a4d4dU, 0x55663333U, 0x94118585U, + 0xcf8a4545U, 0x10e9f9f9U, 0x06040202U, 0x81fe7f7fU, + 0xf0a05050U, 0x44783c3cU, 0xba259f9fU, 0xe34ba8a8U, + 0xf3a25151U, 0xfe5da3a3U, 0xc0804040U, 0x8a058f8fU, + 0xad3f9292U, 0xbc219d9dU, 0x48703838U, 0x04f1f5f5U, + 0xdf63bcbcU, 0xc177b6b6U, 0x75afdadaU, 0x63422121U, + 0x30201010U, 0x1ae5ffffU, 0x0efdf3f3U, 0x6dbfd2d2U, + 0x4c81cdcdU, 0x14180c0cU, 0x35261313U, 0x2fc3ececU, + 0xe1be5f5fU, 0xa2359797U, 0xcc884444U, 0x392e1717U, + 0x5793c4c4U, 0xf255a7a7U, 0x82fc7e7eU, 0x477a3d3dU, + 0xacc86464U, 0xe7ba5d5dU, 0x2b321919U, 0x95e67373U, + 0xa0c06060U, 0x98198181U, 0xd19e4f4fU, 0x7fa3dcdcU, + 0x66442222U, 0x7e542a2aU, 0xab3b9090U, 0x830b8888U, + 0xca8c4646U, 0x29c7eeeeU, 0xd36bb8b8U, 0x3c281414U, + 0x79a7dedeU, 0xe2bc5e5eU, 0x1d160b0bU, 0x76addbdbU, + 0x3bdbe0e0U, 0x56643232U, 0x4e743a3aU, 0x1e140a0aU, + 0xdb924949U, 0x0a0c0606U, 0x6c482424U, 0xe4b85c5cU, + 0x5d9fc2c2U, 0x6ebdd3d3U, 0xef43acacU, 0xa6c46262U, + 0xa8399191U, 0xa4319595U, 0x37d3e4e4U, 0x8bf27979U, + 0x32d5e7e7U, 0x438bc8c8U, 0x596e3737U, 0xb7da6d6dU, + 0x8c018d8dU, 0x64b1d5d5U, 0xd29c4e4eU, 0xe049a9a9U, + 0xb4d86c6cU, 0xfaac5656U, 0x07f3f4f4U, 0x25cfeaeaU, + 0xafca6565U, 0x8ef47a7aU, 0xe947aeaeU, 0x18100808U, + 0xd56fbabaU, 0x88f07878U, 0x6f4a2525U, 0x725c2e2eU, + 0x24381c1cU, 0xf157a6a6U, 0xc773b4b4U, 0x5197c6c6U, + 0x23cbe8e8U, 0x7ca1ddddU, 0x9ce87474U, 0x213e1f1fU, + 0xdd964b4bU, 0xdc61bdbdU, 0x860d8b8bU, 0x850f8a8aU, + 0x90e07070U, 0x427c3e3eU, 0xc471b5b5U, 0xaacc6666U, + 0xd8904848U, 0x05060303U, 0x01f7f6f6U, 0x121c0e0eU, + 0xa3c26161U, 0x5f6a3535U, 0xf9ae5757U, 0xd069b9b9U, + 0x91178686U, 0x5899c1c1U, 0x273a1d1dU, 0xb9279e9eU, + 0x38d9e1e1U, 0x13ebf8f8U, 0xb32b9898U, 0x33221111U, + 0xbbd26969U, 0x70a9d9d9U, 0x89078e8eU, 0xa7339494U, + 0xb62d9b9bU, 0x223c1e1eU, 0x92158787U, 0x20c9e9e9U, + 0x4987ceceU, 0xffaa5555U, 0x78502828U, 0x7aa5dfdfU, + 0x8f038c8cU, 0xf859a1a1U, 0x80098989U, 0x171a0d0dU, + 0xda65bfbfU, 0x31d7e6e6U, 0xc6844242U, 0xb8d06868U, + 0xc3824141U, 0xb0299999U, 0x775a2d2dU, 0x111e0f0fU, + 0xcb7bb0b0U, 0xfca85454U, 0xd66dbbbbU, 0x3a2c1616U, +}; + +static const u32 Te2[256] = +{ + 0x63a5c663U, 0x7c84f87cU, 0x7799ee77U, 0x7b8df67bU, + 0xf20dfff2U, 0x6bbdd66bU, 0x6fb1de6fU, 0xc55491c5U, + 0x30506030U, 0x01030201U, 0x67a9ce67U, 0x2b7d562bU, + 0xfe19e7feU, 0xd762b5d7U, 0xabe64dabU, 0x769aec76U, + 0xca458fcaU, 0x829d1f82U, 0xc94089c9U, 0x7d87fa7dU, + 0xfa15effaU, 0x59ebb259U, 0x47c98e47U, 0xf00bfbf0U, + 0xadec41adU, 0xd467b3d4U, 0xa2fd5fa2U, 0xafea45afU, + 0x9cbf239cU, 0xa4f753a4U, 0x7296e472U, 0xc05b9bc0U, + 0xb7c275b7U, 0xfd1ce1fdU, 0x93ae3d93U, 0x266a4c26U, + 0x365a6c36U, 0x3f417e3fU, 0xf702f5f7U, 0xcc4f83ccU, + 0x345c6834U, 0xa5f451a5U, 0xe534d1e5U, 0xf108f9f1U, + 0x7193e271U, 0xd873abd8U, 0x31536231U, 0x153f2a15U, + 0x040c0804U, 0xc75295c7U, 0x23654623U, 0xc35e9dc3U, + 0x18283018U, 0x96a13796U, 0x050f0a05U, 0x9ab52f9aU, + 0x07090e07U, 0x12362412U, 0x809b1b80U, 0xe23ddfe2U, + 0xeb26cdebU, 0x27694e27U, 0xb2cd7fb2U, 0x759fea75U, + 0x091b1209U, 0x839e1d83U, 0x2c74582cU, 0x1a2e341aU, + 0x1b2d361bU, 0x6eb2dc6eU, 0x5aeeb45aU, 0xa0fb5ba0U, + 0x52f6a452U, 0x3b4d763bU, 0xd661b7d6U, 0xb3ce7db3U, + 0x297b5229U, 0xe33edde3U, 0x2f715e2fU, 0x84971384U, + 0x53f5a653U, 0xd168b9d1U, 0x00000000U, 0xed2cc1edU, + 0x20604020U, 0xfc1fe3fcU, 0xb1c879b1U, 0x5bedb65bU, + 0x6abed46aU, 0xcb468dcbU, 0xbed967beU, 0x394b7239U, + 0x4ade944aU, 0x4cd4984cU, 0x58e8b058U, 0xcf4a85cfU, + 0xd06bbbd0U, 0xef2ac5efU, 0xaae54faaU, 0xfb16edfbU, + 0x43c58643U, 0x4dd79a4dU, 0x33556633U, 0x85941185U, + 0x45cf8a45U, 0xf910e9f9U, 0x02060402U, 0x7f81fe7fU, + 0x50f0a050U, 0x3c44783cU, 0x9fba259fU, 0xa8e34ba8U, + 0x51f3a251U, 0xa3fe5da3U, 0x40c08040U, 0x8f8a058fU, + 0x92ad3f92U, 0x9dbc219dU, 0x38487038U, 0xf504f1f5U, + 0xbcdf63bcU, 0xb6c177b6U, 0xda75afdaU, 0x21634221U, + 0x10302010U, 0xff1ae5ffU, 0xf30efdf3U, 0xd26dbfd2U, + 0xcd4c81cdU, 0x0c14180cU, 0x13352613U, 0xec2fc3ecU, + 0x5fe1be5fU, 0x97a23597U, 0x44cc8844U, 0x17392e17U, + 0xc45793c4U, 0xa7f255a7U, 0x7e82fc7eU, 0x3d477a3dU, + 0x64acc864U, 0x5de7ba5dU, 0x192b3219U, 0x7395e673U, + 0x60a0c060U, 0x81981981U, 0x4fd19e4fU, 0xdc7fa3dcU, + 0x22664422U, 0x2a7e542aU, 0x90ab3b90U, 0x88830b88U, + 0x46ca8c46U, 0xee29c7eeU, 0xb8d36bb8U, 0x143c2814U, + 0xde79a7deU, 0x5ee2bc5eU, 0x0b1d160bU, 0xdb76addbU, + 0xe03bdbe0U, 0x32566432U, 0x3a4e743aU, 0x0a1e140aU, + 0x49db9249U, 0x060a0c06U, 0x246c4824U, 0x5ce4b85cU, + 0xc25d9fc2U, 0xd36ebdd3U, 0xacef43acU, 0x62a6c462U, + 0x91a83991U, 0x95a43195U, 0xe437d3e4U, 0x798bf279U, + 0xe732d5e7U, 0xc8438bc8U, 0x37596e37U, 0x6db7da6dU, + 0x8d8c018dU, 0xd564b1d5U, 0x4ed29c4eU, 0xa9e049a9U, + 0x6cb4d86cU, 0x56faac56U, 0xf407f3f4U, 0xea25cfeaU, + 0x65afca65U, 0x7a8ef47aU, 0xaee947aeU, 0x08181008U, + 0xbad56fbaU, 0x7888f078U, 0x256f4a25U, 0x2e725c2eU, + 0x1c24381cU, 0xa6f157a6U, 0xb4c773b4U, 0xc65197c6U, + 0xe823cbe8U, 0xdd7ca1ddU, 0x749ce874U, 0x1f213e1fU, + 0x4bdd964bU, 0xbddc61bdU, 0x8b860d8bU, 0x8a850f8aU, + 0x7090e070U, 0x3e427c3eU, 0xb5c471b5U, 0x66aacc66U, + 0x48d89048U, 0x03050603U, 0xf601f7f6U, 0x0e121c0eU, + 0x61a3c261U, 0x355f6a35U, 0x57f9ae57U, 0xb9d069b9U, + 0x86911786U, 0xc15899c1U, 0x1d273a1dU, 0x9eb9279eU, + 0xe138d9e1U, 0xf813ebf8U, 0x98b32b98U, 0x11332211U, + 0x69bbd269U, 0xd970a9d9U, 0x8e89078eU, 0x94a73394U, + 0x9bb62d9bU, 0x1e223c1eU, 0x87921587U, 0xe920c9e9U, + 0xce4987ceU, 0x55ffaa55U, 0x28785028U, 0xdf7aa5dfU, + 0x8c8f038cU, 0xa1f859a1U, 0x89800989U, 0x0d171a0dU, + 0xbfda65bfU, 0xe631d7e6U, 0x42c68442U, 0x68b8d068U, + 0x41c38241U, 0x99b02999U, 0x2d775a2dU, 0x0f111e0fU, + 0xb0cb7bb0U, 0x54fca854U, 0xbbd66dbbU, 0x163a2c16U, +}; + +static const u32 Te3[256] = +{ + 0x6363a5c6U, 0x7c7c84f8U, 0x777799eeU, 0x7b7b8df6U, + 0xf2f20dffU, 0x6b6bbdd6U, 0x6f6fb1deU, 0xc5c55491U, + 0x30305060U, 0x01010302U, 0x6767a9ceU, 0x2b2b7d56U, + 0xfefe19e7U, 0xd7d762b5U, 0xababe64dU, 0x76769aecU, + 0xcaca458fU, 0x82829d1fU, 0xc9c94089U, 0x7d7d87faU, + 0xfafa15efU, 0x5959ebb2U, 0x4747c98eU, 0xf0f00bfbU, + 0xadadec41U, 0xd4d467b3U, 0xa2a2fd5fU, 0xafafea45U, + 0x9c9cbf23U, 0xa4a4f753U, 0x727296e4U, 0xc0c05b9bU, + 0xb7b7c275U, 0xfdfd1ce1U, 0x9393ae3dU, 0x26266a4cU, + 0x36365a6cU, 0x3f3f417eU, 0xf7f702f5U, 0xcccc4f83U, + 0x34345c68U, 0xa5a5f451U, 0xe5e534d1U, 0xf1f108f9U, + 0x717193e2U, 0xd8d873abU, 0x31315362U, 0x15153f2aU, + 0x04040c08U, 0xc7c75295U, 0x23236546U, 0xc3c35e9dU, + 0x18182830U, 0x9696a137U, 0x05050f0aU, 0x9a9ab52fU, + 0x0707090eU, 0x12123624U, 0x80809b1bU, 0xe2e23ddfU, + 0xebeb26cdU, 0x2727694eU, 0xb2b2cd7fU, 0x75759feaU, + 0x09091b12U, 0x83839e1dU, 0x2c2c7458U, 0x1a1a2e34U, + 0x1b1b2d36U, 0x6e6eb2dcU, 0x5a5aeeb4U, 0xa0a0fb5bU, + 0x5252f6a4U, 0x3b3b4d76U, 0xd6d661b7U, 0xb3b3ce7dU, + 0x29297b52U, 0xe3e33eddU, 0x2f2f715eU, 0x84849713U, + 0x5353f5a6U, 0xd1d168b9U, 0x00000000U, 0xeded2cc1U, + 0x20206040U, 0xfcfc1fe3U, 0xb1b1c879U, 0x5b5bedb6U, + 0x6a6abed4U, 0xcbcb468dU, 0xbebed967U, 0x39394b72U, + 0x4a4ade94U, 0x4c4cd498U, 0x5858e8b0U, 0xcfcf4a85U, + 0xd0d06bbbU, 0xefef2ac5U, 0xaaaae54fU, 0xfbfb16edU, + 0x4343c586U, 0x4d4dd79aU, 0x33335566U, 0x85859411U, + 0x4545cf8aU, 0xf9f910e9U, 0x02020604U, 0x7f7f81feU, + 0x5050f0a0U, 0x3c3c4478U, 0x9f9fba25U, 0xa8a8e34bU, + 0x5151f3a2U, 0xa3a3fe5dU, 0x4040c080U, 0x8f8f8a05U, + 0x9292ad3fU, 0x9d9dbc21U, 0x38384870U, 0xf5f504f1U, + 0xbcbcdf63U, 0xb6b6c177U, 0xdada75afU, 0x21216342U, + 0x10103020U, 0xffff1ae5U, 0xf3f30efdU, 0xd2d26dbfU, + 0xcdcd4c81U, 0x0c0c1418U, 0x13133526U, 0xecec2fc3U, + 0x5f5fe1beU, 0x9797a235U, 0x4444cc88U, 0x1717392eU, + 0xc4c45793U, 0xa7a7f255U, 0x7e7e82fcU, 0x3d3d477aU, + 0x6464acc8U, 0x5d5de7baU, 0x19192b32U, 0x737395e6U, + 0x6060a0c0U, 0x81819819U, 0x4f4fd19eU, 0xdcdc7fa3U, + 0x22226644U, 0x2a2a7e54U, 0x9090ab3bU, 0x8888830bU, + 0x4646ca8cU, 0xeeee29c7U, 0xb8b8d36bU, 0x14143c28U, + 0xdede79a7U, 0x5e5ee2bcU, 0x0b0b1d16U, 0xdbdb76adU, + 0xe0e03bdbU, 0x32325664U, 0x3a3a4e74U, 0x0a0a1e14U, + 0x4949db92U, 0x06060a0cU, 0x24246c48U, 0x5c5ce4b8U, + 0xc2c25d9fU, 0xd3d36ebdU, 0xacacef43U, 0x6262a6c4U, + 0x9191a839U, 0x9595a431U, 0xe4e437d3U, 0x79798bf2U, + 0xe7e732d5U, 0xc8c8438bU, 0x3737596eU, 0x6d6db7daU, + 0x8d8d8c01U, 0xd5d564b1U, 0x4e4ed29cU, 0xa9a9e049U, + 0x6c6cb4d8U, 0x5656faacU, 0xf4f407f3U, 0xeaea25cfU, + 0x6565afcaU, 0x7a7a8ef4U, 0xaeaee947U, 0x08081810U, + 0xbabad56fU, 0x787888f0U, 0x25256f4aU, 0x2e2e725cU, + 0x1c1c2438U, 0xa6a6f157U, 0xb4b4c773U, 0xc6c65197U, + 0xe8e823cbU, 0xdddd7ca1U, 0x74749ce8U, 0x1f1f213eU, + 0x4b4bdd96U, 0xbdbddc61U, 0x8b8b860dU, 0x8a8a850fU, + 0x707090e0U, 0x3e3e427cU, 0xb5b5c471U, 0x6666aaccU, + 0x4848d890U, 0x03030506U, 0xf6f601f7U, 0x0e0e121cU, + 0x6161a3c2U, 0x35355f6aU, 0x5757f9aeU, 0xb9b9d069U, + 0x86869117U, 0xc1c15899U, 0x1d1d273aU, 0x9e9eb927U, + 0xe1e138d9U, 0xf8f813ebU, 0x9898b32bU, 0x11113322U, + 0x6969bbd2U, 0xd9d970a9U, 0x8e8e8907U, 0x9494a733U, + 0x9b9bb62dU, 0x1e1e223cU, 0x87879215U, 0xe9e920c9U, + 0xcece4987U, 0x5555ffaaU, 0x28287850U, 0xdfdf7aa5U, + 0x8c8c8f03U, 0xa1a1f859U, 0x89898009U, 0x0d0d171aU, + 0xbfbfda65U, 0xe6e631d7U, 0x4242c684U, 0x6868b8d0U, + 0x4141c382U, 0x9999b029U, 0x2d2d775aU, 0x0f0f111eU, + 0xb0b0cb7bU, 0x5454fca8U, 0xbbbbd66dU, 0x16163a2cU, +}; + +static const u32 Te4[256] = +{ + 0x63636363U, 0x7c7c7c7cU, 0x77777777U, 0x7b7b7b7bU, + 0xf2f2f2f2U, 0x6b6b6b6bU, 0x6f6f6f6fU, 0xc5c5c5c5U, + 0x30303030U, 0x01010101U, 0x67676767U, 0x2b2b2b2bU, + 0xfefefefeU, 0xd7d7d7d7U, 0xababababU, 0x76767676U, + 0xcacacacaU, 0x82828282U, 0xc9c9c9c9U, 0x7d7d7d7dU, + 0xfafafafaU, 0x59595959U, 0x47474747U, 0xf0f0f0f0U, + 0xadadadadU, 0xd4d4d4d4U, 0xa2a2a2a2U, 0xafafafafU, + 0x9c9c9c9cU, 0xa4a4a4a4U, 0x72727272U, 0xc0c0c0c0U, + 0xb7b7b7b7U, 0xfdfdfdfdU, 0x93939393U, 0x26262626U, + 0x36363636U, 0x3f3f3f3fU, 0xf7f7f7f7U, 0xccccccccU, + 0x34343434U, 0xa5a5a5a5U, 0xe5e5e5e5U, 0xf1f1f1f1U, + 0x71717171U, 0xd8d8d8d8U, 0x31313131U, 0x15151515U, + 0x04040404U, 0xc7c7c7c7U, 0x23232323U, 0xc3c3c3c3U, + 0x18181818U, 0x96969696U, 0x05050505U, 0x9a9a9a9aU, + 0x07070707U, 0x12121212U, 0x80808080U, 0xe2e2e2e2U, + 0xebebebebU, 0x27272727U, 0xb2b2b2b2U, 0x75757575U, + 0x09090909U, 0x83838383U, 0x2c2c2c2cU, 0x1a1a1a1aU, + 0x1b1b1b1bU, 0x6e6e6e6eU, 0x5a5a5a5aU, 0xa0a0a0a0U, + 0x52525252U, 0x3b3b3b3bU, 0xd6d6d6d6U, 0xb3b3b3b3U, + 0x29292929U, 0xe3e3e3e3U, 0x2f2f2f2fU, 0x84848484U, + 0x53535353U, 0xd1d1d1d1U, 0x00000000U, 0xededededU, + 0x20202020U, 0xfcfcfcfcU, 0xb1b1b1b1U, 0x5b5b5b5bU, + 0x6a6a6a6aU, 0xcbcbcbcbU, 0xbebebebeU, 0x39393939U, + 0x4a4a4a4aU, 0x4c4c4c4cU, 0x58585858U, 0xcfcfcfcfU, + 0xd0d0d0d0U, 0xefefefefU, 0xaaaaaaaaU, 0xfbfbfbfbU, + 0x43434343U, 0x4d4d4d4dU, 0x33333333U, 0x85858585U, + 0x45454545U, 0xf9f9f9f9U, 0x02020202U, 0x7f7f7f7fU, + 0x50505050U, 0x3c3c3c3cU, 0x9f9f9f9fU, 0xa8a8a8a8U, + 0x51515151U, 0xa3a3a3a3U, 0x40404040U, 0x8f8f8f8fU, + 0x92929292U, 0x9d9d9d9dU, 0x38383838U, 0xf5f5f5f5U, + 0xbcbcbcbcU, 0xb6b6b6b6U, 0xdadadadaU, 0x21212121U, + 0x10101010U, 0xffffffffU, 0xf3f3f3f3U, 0xd2d2d2d2U, + 0xcdcdcdcdU, 0x0c0c0c0cU, 0x13131313U, 0xececececU, + 0x5f5f5f5fU, 0x97979797U, 0x44444444U, 0x17171717U, + 0xc4c4c4c4U, 0xa7a7a7a7U, 0x7e7e7e7eU, 0x3d3d3d3dU, + 0x64646464U, 0x5d5d5d5dU, 0x19191919U, 0x73737373U, + 0x60606060U, 0x81818181U, 0x4f4f4f4fU, 0xdcdcdcdcU, + 0x22222222U, 0x2a2a2a2aU, 0x90909090U, 0x88888888U, + 0x46464646U, 0xeeeeeeeeU, 0xb8b8b8b8U, 0x14141414U, + 0xdedededeU, 0x5e5e5e5eU, 0x0b0b0b0bU, 0xdbdbdbdbU, + 0xe0e0e0e0U, 0x32323232U, 0x3a3a3a3aU, 0x0a0a0a0aU, + 0x49494949U, 0x06060606U, 0x24242424U, 0x5c5c5c5cU, + 0xc2c2c2c2U, 0xd3d3d3d3U, 0xacacacacU, 0x62626262U, + 0x91919191U, 0x95959595U, 0xe4e4e4e4U, 0x79797979U, + 0xe7e7e7e7U, 0xc8c8c8c8U, 0x37373737U, 0x6d6d6d6dU, + 0x8d8d8d8dU, 0xd5d5d5d5U, 0x4e4e4e4eU, 0xa9a9a9a9U, + 0x6c6c6c6cU, 0x56565656U, 0xf4f4f4f4U, 0xeaeaeaeaU, + 0x65656565U, 0x7a7a7a7aU, 0xaeaeaeaeU, 0x08080808U, + 0xbabababaU, 0x78787878U, 0x25252525U, 0x2e2e2e2eU, + 0x1c1c1c1cU, 0xa6a6a6a6U, 0xb4b4b4b4U, 0xc6c6c6c6U, + 0xe8e8e8e8U, 0xddddddddU, 0x74747474U, 0x1f1f1f1fU, + 0x4b4b4b4bU, 0xbdbdbdbdU, 0x8b8b8b8bU, 0x8a8a8a8aU, + 0x70707070U, 0x3e3e3e3eU, 0xb5b5b5b5U, 0x66666666U, + 0x48484848U, 0x03030303U, 0xf6f6f6f6U, 0x0e0e0e0eU, + 0x61616161U, 0x35353535U, 0x57575757U, 0xb9b9b9b9U, + 0x86868686U, 0xc1c1c1c1U, 0x1d1d1d1dU, 0x9e9e9e9eU, + 0xe1e1e1e1U, 0xf8f8f8f8U, 0x98989898U, 0x11111111U, + 0x69696969U, 0xd9d9d9d9U, 0x8e8e8e8eU, 0x94949494U, + 0x9b9b9b9bU, 0x1e1e1e1eU, 0x87878787U, 0xe9e9e9e9U, + 0xcecececeU, 0x55555555U, 0x28282828U, 0xdfdfdfdfU, + 0x8c8c8c8cU, 0xa1a1a1a1U, 0x89898989U, 0x0d0d0d0dU, + 0xbfbfbfbfU, 0xe6e6e6e6U, 0x42424242U, 0x68686868U, + 0x41414141U, 0x99999999U, 0x2d2d2d2dU, 0x0f0f0f0fU, + 0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U, +}; + +static const u32 rcon[] = +{ + 0x01000000, 0x02000000, 0x04000000, 0x08000000, + 0x10000000, 0x20000000, 0x40000000, 0x80000000, + 0x1B000000, 0x36000000, + /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */ +}; + +#define GETU32(plaintext) (((u32)(plaintext)[0] << 24) ^ \ + ((u32)(plaintext)[1] << 16) ^ \ + ((u32)(plaintext)[2] << 8) ^ \ + ((u32)(plaintext)[3])) + +#define PUTU32(ciphertext, st) { (ciphertext)[0] = (u8)((st) >> 24); \ + (ciphertext)[1] = (u8)((st) >> 16); \ + (ciphertext)[2] = (u8)((st) >> 8); \ + (ciphertext)[3] = (u8)(st); } + +/** + * Expand the cipher key into the encryption key schedule. + * + * @return the number of rounds for the given cipher key size. + */ +int rijndaelSetupEncrypt(u32 *rk, const u8 *key, int keybits) +{ + int i = 0; + u32 temp; + + rk[0] = GETU32(key ); + rk[1] = GETU32(key + 4); + rk[2] = GETU32(key + 8); + rk[3] = GETU32(key + 12); + if (keybits == 128) + { + for (;;) + { + temp = rk[3]; + rk[4] = rk[0] ^ + (Te4[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te4[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te4[(temp ) & 0xff] & 0x0000ff00) ^ + (Te4[(temp >> 24) ] & 0x000000ff) ^ + rcon[i]; + rk[5] = rk[1] ^ rk[4]; + rk[6] = rk[2] ^ rk[5]; + rk[7] = rk[3] ^ rk[6]; + if (++i == 10) + return 10; + rk += 4; + } + } + rk[4] = GETU32(key + 16); + rk[5] = GETU32(key + 20); + if (keybits == 192) + { + for (;;) + { + temp = rk[ 5]; + rk[ 6] = rk[ 0] ^ + (Te4[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te4[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te4[(temp ) & 0xff] & 0x0000ff00) ^ + (Te4[(temp >> 24) ] & 0x000000ff) ^ + rcon[i]; + rk[ 7] = rk[ 1] ^ rk[ 6]; + rk[ 8] = rk[ 2] ^ rk[ 7]; + rk[ 9] = rk[ 3] ^ rk[ 8]; + if (++i == 8) + return 12; + rk[10] = rk[ 4] ^ rk[ 9]; + rk[11] = rk[ 5] ^ rk[10]; + rk += 6; + } + } + rk[6] = GETU32(key + 24); + rk[7] = GETU32(key + 28); + if (keybits == 256) + { + for (;;) + { + temp = rk[ 7]; + rk[ 8] = rk[ 0] ^ + (Te4[(temp >> 16) & 0xff] & 0xff000000) ^ + (Te4[(temp >> 8) & 0xff] & 0x00ff0000) ^ + (Te4[(temp ) & 0xff] & 0x0000ff00) ^ + (Te4[(temp >> 24) ] & 0x000000ff) ^ + rcon[i]; + rk[ 9] = rk[ 1] ^ rk[ 8]; + rk[10] = rk[ 2] ^ rk[ 9]; + rk[11] = rk[ 3] ^ rk[10]; + if (++i == 7) + return 14; + temp = rk[11]; + rk[12] = rk[ 4] ^ + (Te4[(temp >> 24) ] & 0xff000000) ^ + (Te4[(temp >> 16) & 0xff] & 0x00ff0000) ^ + (Te4[(temp >> 8) & 0xff] & 0x0000ff00) ^ + (Te4[(temp ) & 0xff] & 0x000000ff); + rk[13] = rk[ 5] ^ rk[12]; + rk[14] = rk[ 6] ^ rk[13]; + rk[15] = rk[ 7] ^ rk[14]; + rk += 8; + } + } + return 0; +} + +void rijndaelEncrypt(const u32 *rk, int nrounds, + const u8 plaintext[16], u8 ciphertext[16]) +{ + u32 s0, s1, s2, s3, t0, t1, t2, t3; + #ifndef FULL_UNROLL + int r; + #endif /* ?FULL_UNROLL */ + /* + * map byte array block to cipher state + * and add initial round key: + */ + s0 = GETU32(plaintext ) ^ rk[0]; + s1 = GETU32(plaintext + 4) ^ rk[1]; + s2 = GETU32(plaintext + 8) ^ rk[2]; + s3 = GETU32(plaintext + 12) ^ rk[3]; + #ifdef FULL_UNROLL + /* round 1: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[ 4]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[ 5]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[ 6]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[ 7]; + /* round 2: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[ 8]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[ 9]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[10]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[11]; + /* round 3: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[12]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[13]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[14]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[15]; + /* round 4: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[16]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[17]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[18]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[19]; + /* round 5: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[20]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[21]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[22]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[23]; + /* round 6: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[24]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[25]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[26]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[27]; + /* round 7: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[28]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[29]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[30]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[31]; + /* round 8: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[32]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[33]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[34]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[35]; + /* round 9: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[36]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[37]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[38]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[39]; + if (nrounds > 10) + { + /* round 10: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[40]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[41]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[42]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[43]; + /* round 11: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[44]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[45]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[46]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[47]; + if (nrounds > 12) + { + /* round 12: */ + s0 = Te0[t0 >> 24] ^ Te1[(t1 >> 16) & 0xff] ^ Te2[(t2 >> 8) & 0xff] ^ Te3[t3 & 0xff] ^ rk[48]; + s1 = Te0[t1 >> 24] ^ Te1[(t2 >> 16) & 0xff] ^ Te2[(t3 >> 8) & 0xff] ^ Te3[t0 & 0xff] ^ rk[49]; + s2 = Te0[t2 >> 24] ^ Te1[(t3 >> 16) & 0xff] ^ Te2[(t0 >> 8) & 0xff] ^ Te3[t1 & 0xff] ^ rk[50]; + s3 = Te0[t3 >> 24] ^ Te1[(t0 >> 16) & 0xff] ^ Te2[(t1 >> 8) & 0xff] ^ Te3[t2 & 0xff] ^ rk[51]; + /* round 13: */ + t0 = Te0[s0 >> 24] ^ Te1[(s1 >> 16) & 0xff] ^ Te2[(s2 >> 8) & 0xff] ^ Te3[s3 & 0xff] ^ rk[52]; + t1 = Te0[s1 >> 24] ^ Te1[(s2 >> 16) & 0xff] ^ Te2[(s3 >> 8) & 0xff] ^ Te3[s0 & 0xff] ^ rk[53]; + t2 = Te0[s2 >> 24] ^ Te1[(s3 >> 16) & 0xff] ^ Te2[(s0 >> 8) & 0xff] ^ Te3[s1 & 0xff] ^ rk[54]; + t3 = Te0[s3 >> 24] ^ Te1[(s0 >> 16) & 0xff] ^ Te2[(s1 >> 8) & 0xff] ^ Te3[s2 & 0xff] ^ rk[55]; + } + } + rk += nrounds << 2; + #else /* !FULL_UNROLL */ + /* + * nrounds - 1 full rounds: + */ + r = nrounds >> 1; + for (;;) + { + t0 = + Te0[(s0 >> 24) ] ^ + Te1[(s1 >> 16) & 0xff] ^ + Te2[(s2 >> 8) & 0xff] ^ + Te3[(s3 ) & 0xff] ^ + rk[4]; + t1 = + Te0[(s1 >> 24) ] ^ + Te1[(s2 >> 16) & 0xff] ^ + Te2[(s3 >> 8) & 0xff] ^ + Te3[(s0 ) & 0xff] ^ + rk[5]; + t2 = + Te0[(s2 >> 24) ] ^ + Te1[(s3 >> 16) & 0xff] ^ + Te2[(s0 >> 8) & 0xff] ^ + Te3[(s1 ) & 0xff] ^ + rk[6]; + t3 = + Te0[(s3 >> 24) ] ^ + Te1[(s0 >> 16) & 0xff] ^ + Te2[(s1 >> 8) & 0xff] ^ + Te3[(s2 ) & 0xff] ^ + rk[7]; + rk += 8; + if (--r == 0) + break; + s0 = + Te0[(t0 >> 24) ] ^ + Te1[(t1 >> 16) & 0xff] ^ + Te2[(t2 >> 8) & 0xff] ^ + Te3[(t3 ) & 0xff] ^ + rk[0]; + s1 = + Te0[(t1 >> 24) ] ^ + Te1[(t2 >> 16) & 0xff] ^ + Te2[(t3 >> 8) & 0xff] ^ + Te3[(t0 ) & 0xff] ^ + rk[1]; + s2 = + Te0[(t2 >> 24) ] ^ + Te1[(t3 >> 16) & 0xff] ^ + Te2[(t0 >> 8) & 0xff] ^ + Te3[(t1 ) & 0xff] ^ + rk[2]; + s3 = + Te0[(t3 >> 24) ] ^ + Te1[(t0 >> 16) & 0xff] ^ + Te2[(t1 >> 8) & 0xff] ^ + Te3[(t2 ) & 0xff] ^ + rk[3]; + } + #endif /* ?FULL_UNROLL */ + /* + * apply last round and + * map cipher state to byte array block: + */ + s0 = + (Te4[(t0 >> 24) ] & 0xff000000) ^ + (Te4[(t1 >> 16) & 0xff] & 0x00ff0000) ^ + (Te4[(t2 >> 8) & 0xff] & 0x0000ff00) ^ + (Te4[(t3 ) & 0xff] & 0x000000ff) ^ + rk[0]; + PUTU32(ciphertext , s0); + s1 = + (Te4[(t1 >> 24) ] & 0xff000000) ^ + (Te4[(t2 >> 16) & 0xff] & 0x00ff0000) ^ + (Te4[(t3 >> 8) & 0xff] & 0x0000ff00) ^ + (Te4[(t0 ) & 0xff] & 0x000000ff) ^ + rk[1]; + PUTU32(ciphertext + 4, s1); + s2 = + (Te4[(t2 >> 24) ] & 0xff000000) ^ + (Te4[(t3 >> 16) & 0xff] & 0x00ff0000) ^ + (Te4[(t0 >> 8) & 0xff] & 0x0000ff00) ^ + (Te4[(t1 ) & 0xff] & 0x000000ff) ^ + rk[2]; + PUTU32(ciphertext + 8, s2); + s3 = + (Te4[(t3 >> 24) ] & 0xff000000) ^ + (Te4[(t0 >> 16) & 0xff] & 0x00ff0000) ^ + (Te4[(t1 >> 8) & 0xff] & 0x0000ff00) ^ + (Te4[(t2 ) & 0xff] & 0x000000ff) ^ + rk[3]; + PUTU32(ciphertext + 12, s3); +} diff --git a/Build/source/texk/dvipdfm-x/dpxcrypt.h b/Build/source/texk/dvipdfm-x/dpxcrypt.h index 16a856cb369..5b390f63b08 100644 --- a/Build/source/texk/dvipdfm-x/dpxcrypt.h +++ b/Build/source/texk/dvipdfm-x/dpxcrypt.h @@ -29,25 +29,73 @@ # include <stdint.h> #endif +typedef uint64_t u64; +typedef uint32_t u32; +typedef uint8_t u8; + /* libgcrypt md5 */ typedef struct { - uint32_t A,B,C,D; /* chaining variables */ - unsigned long nblocks; + uint32_t A, B, C, D; /* chaining variables */ + size_t nblocks; unsigned char buf[64]; int count; } MD5_CONTEXT; void MD5_init (MD5_CONTEXT *ctx); -void MD5_write (MD5_CONTEXT *ctx, const unsigned char *inbuf, unsigned long inlen); -void MD5_final (unsigned char *outbuf, MD5_CONTEXT *ctx); +void MD5_write(MD5_CONTEXT *ctx, const unsigned char *inbuf, unsigned long inlen); +void MD5_final(unsigned char *outbuf, MD5_CONTEXT *ctx); + +typedef struct { + u32 h0,h1,h2,h3,h4,h5,h6,h7; + size_t nblocks; + unsigned char buf[64]; + int count; +} SHA256_CONTEXT; + +typedef struct +{ + u64 h0, h1, h2, h3, h4, h5, h6, h7; +} SHA512_STATE; + +typedef struct +{ + SHA512_STATE state; + size_t nblocks; + unsigned char buf[128]; + int count; +} SHA512_CONTEXT; + +void SHA256_init (SHA256_CONTEXT *ctx); +void SHA256_write(SHA256_CONTEXT *ctx, + const unsigned char *inbuf, unsigned long inlen); +void SHA256_final(unsigned char *outbuf, SHA256_CONTEXT *ctx); + +void SHA384_init (SHA512_CONTEXT *ctx); +#define SHA384_write(c,b,l) SHA512_write((c),(b),(l)) +#define SHA384_final(b,c) SHA512_final((b),(c)) +void SHA512_init (SHA512_CONTEXT *ctx); +void SHA512_write(SHA512_CONTEXT *ctx, + const unsigned char *inbuf, unsigned long inlen); +void SHA512_final(unsigned char *outbuf, SHA512_CONTEXT *ctx); /* libgcrypt arcfour */ typedef struct { int idx_i, idx_j; unsigned char sbox[256]; -} ARC4_KEY; +} ARC4_CONTEXT; + +#define AES_BLOCKSIZE 16 + +void ARC4 (ARC4_CONTEXT *ctx, unsigned long len, const unsigned char *inbuf, unsigned char *outbuf); +void ARC4_set_key (ARC4_CONTEXT *ctx, unsigned int keylen, const unsigned char *key); + +void AES_ecb_encrypt (const unsigned char *key, size_t key_len, + const unsigned char *plain, size_t plain_len, + unsigned char **cipher, size_t *cipher_len); -void ARC4 (ARC4_KEY *ctx, unsigned long len, const unsigned char *inbuf, unsigned char *outbuf); -void ARC4_set_key (ARC4_KEY *ctx, unsigned int keylen, const unsigned char *key); +void AES_cbc_encrypt (const unsigned char *key, size_t key_len, + const unsigned char *iv, int padding, + const unsigned char *plain, size_t plain_len, + unsigned char **cipher, size_t *cipher_len); #endif /* _DPXCRYPT_H_ */ diff --git a/Build/source/texk/dvipdfm-x/dvi.c b/Build/source/texk/dvipdfm-x/dvi.c index 3645dde1505..198da83e794 100644 --- a/Build/source/texk/dvipdfm-x/dvi.c +++ b/Build/source/texk/dvipdfm-x/dvi.c @@ -2120,9 +2120,10 @@ read_length (double *vp, double mag, const char **pp, const char *endptr) static int -scan_special (double *wd, double *ht, double *xo, double *yo, char *lm, - unsigned *minorversion, - int *do_enc, unsigned *key_bits, unsigned *permission, char *owner_pw, char *user_pw, +scan_special (double *wd, double *ht, double *xo, double *yo, int *lm, + int *majorversion, int *minorversion, + int *do_enc, int *key_bits, int32_t *permission, + char *owner_pw, char *user_pw, const char *buf, uint32_t size) { char *q; @@ -2227,7 +2228,16 @@ scan_special (double *wd, double *ht, double *xo, double *yo, char *lm, skip_white(&p, endptr); kv = parse_float_decimal(&p, endptr); if (kv) { - *minorversion = (unsigned)strtol(kv, NULL, 10); + *minorversion = (int)strtol(kv, NULL, 10); + RELEASE(kv); + } + } else if (majorversion && ns_pdf && !strcmp(q, "majorversion")) { + char *kv; + if (*p == '=') p++; + skip_white(&p, endptr); + kv = parse_float_decimal(&p, endptr); + if (kv) { + *majorversion = (int)strtol(kv, NULL, 10); RELEASE(kv); } } else if (ns_pdf && !strcmp(q, "encrypt") && do_enc) { @@ -2283,9 +2293,10 @@ scan_special (double *wd, double *ht, double *xo, double *yo, char *lm, void dvi_scan_specials (int page_no, double *page_width, double *page_height, - double *x_offset, double *y_offset, char *landscape, - unsigned *minorversion, - int *do_enc, unsigned *key_bits, unsigned *permission, char *owner_pw, char *user_pw) + double *x_offset, double *y_offset, int *landscape, + int *majorversion, int *minorversion, + int *do_enc, int *key_bits, int32_t *permission, + char *owner_pw, char *user_pw) { FILE *fp = dvi_file; int32_t offset; @@ -2328,11 +2339,12 @@ dvi_scan_specials (int page_no, dvi_page_buf_size = (dvi_page_buf_index + size + DVI_PAGE_BUF_CHUNK); dvi_page_buffer = RENEW(dvi_page_buffer, dvi_page_buf_size, unsigned char); } -#define buf (char*)dvi_page_buffer + dvi_page_buf_index +#define buf ((char*)(dvi_page_buffer + dvi_page_buf_index)) if (fread(buf, sizeof(char), size, fp) != size) ERROR("Reading DVI file failed!"); if (scan_special(page_width, page_height, x_offset, y_offset, landscape, - minorversion, do_enc, key_bits, permission, owner_pw, user_pw, + majorversion, minorversion, + do_enc, key_bits, permission, owner_pw, user_pw, buf, size)) WARN("Reading special command failed: \"%.*s\"", size, buf); #undef buf @@ -2407,4 +2419,3 @@ dvi_scan_specials (int page_no, return; } - diff --git a/Build/source/texk/dvipdfm-x/dvi.h b/Build/source/texk/dvipdfm-x/dvi.h index 667bc76b961..aacfb11b29c 100644 --- a/Build/source/texk/dvipdfm-x/dvi.h +++ b/Build/source/texk/dvipdfm-x/dvi.h @@ -30,7 +30,7 @@ /* instantiated in dvipdfmx.c */ extern double paper_width, paper_height; -extern char landscape_mode; +extern int landscape_mode; extern double get_origin (int x); @@ -72,9 +72,10 @@ extern void dvi_dir (unsigned char dir); extern void dvi_do_page (double paper_height, double x_offset, double y_offset); extern void dvi_scan_specials (int page_no, double *width, double *height, - double *x_offset, double *y_offset, - char *landscape, unsigned *minorversion, - int *do_enc, unsigned *key_bits, unsigned *permission, char *owner_pw, char *user_pw); + double *x_offset, double *y_offset, int *landscape, + int *majorversion, int *minorversion, + int *do_enc, int *keybits, int32_t *perm, + char *opasswd, char *upasswd); extern int dvi_locate_font (const char *name, spt_t ptsize); /* link or nolink: diff --git a/Build/source/texk/dvipdfm-x/dvipdfmx.c b/Build/source/texk/dvipdfm-x/dvipdfmx.c index f95614d0ce1..7b488614695 100644 --- a/Build/source/texk/dvipdfm-x/dvipdfmx.c +++ b/Build/source/texk/dvipdfm-x/dvipdfmx.c @@ -104,15 +104,15 @@ static int image_cache_life = -2; /* Encryption */ static int do_encryption = 0; -static unsigned key_bits = 40; -static unsigned permission = 0x003C; +static int key_bits = 40; +static int32_t permission = 0x003C; /* Page device */ double paper_width = 595.0; double paper_height = 842.0; static double x_offset = 72.0; static double y_offset = 72.0; -char landscape_mode = 0; +int landscape_mode = 0; int always_embed = 0; /* always embed fonts, regardless of licensing flags */ @@ -597,7 +597,8 @@ do_args (int argc, char *argv[]) case 'K': CHECK_ARG(1, "encryption key length"); key_bits = (unsigned) atoi(argv[1]); - if (key_bits < 40 || key_bits > 128 || (key_bits & 0x7)) + if (!(key_bits >= 40 && key_bits <= 128 && (key_bits % 8 == 0)) && + key_bits != 256) ERROR("Invalid encryption key length specified: %s", argv[1]); POP_ARG(); break; @@ -787,14 +788,14 @@ do_dvi_pages (void) while (dvi_npages()) { if (page_no < dvi_npages()) { double w, h, xo, yo; - char lm; + int lm; MESG("[%d", page_no+1); /* Users want to change page size even after page is started! */ page_width = paper_width; page_height = paper_height; w = page_width; h = page_height; lm = landscape_mode; xo = x_offset; yo = y_offset; - dvi_scan_specials(page_no, &w, &h, &xo, &yo, &lm, NULL, NULL, NULL, NULL, NULL, NULL); + dvi_scan_specials(page_no, &w, &h, &xo, &yo, &lm, NULL, NULL, NULL, NULL, NULL, NULL, NULL); if (lm != landscape_mode) { SWAP(w, h); landscape_mode = lm; @@ -1024,7 +1025,7 @@ CDECL main (int argc, char *argv[]) y_offset = 0.0; dvi2pts = 0.01; /* dvi2pts controls accuracy. */ } else { - unsigned ver_minor = 0; + int ver_major = 0, ver_minor = 0; char owner_pw[MAX_PWD_LEN], user_pw[MAX_PWD_LEN]; /* Dependency between DVI and PDF side is rather complicated... */ dvi2pts = dvi_init(dvi_filename, mag); @@ -1033,26 +1034,39 @@ CDECL main (int argc, char *argv[]) pdf_doc_set_creator(dvi_comment()); - if (do_encryption) + if (do_encryption) { /* command line takes precedence */ - dvi_scan_specials(0, &paper_width, &paper_height, &x_offset, &y_offset, &landscape_mode, - &ver_minor, NULL, NULL, NULL, NULL, NULL); - else { - dvi_scan_specials(0, &paper_width, &paper_height, &x_offset, &y_offset, &landscape_mode, - &ver_minor, &do_encryption, &key_bits, &permission, owner_pw, user_pw); + dvi_scan_specials(0, + &paper_width, &paper_height, + &x_offset, &y_offset, &landscape_mode, + &ver_major, &ver_minor, + NULL, NULL, NULL, NULL, NULL); + /* FIXME: pdf_set_version() should come before ecrcyption setting. + * It's too late to set here... + */ + if (ver_minor >= PDF_VERSION_MIN && ver_minor <= PDF_VERSION_MAX) { + pdf_set_version(ver_minor); + } + } else { + dvi_scan_specials(0, + &paper_width, &paper_height, + &x_offset, &y_offset, &landscape_mode, + &ver_major, &ver_minor, + &do_encryption, &key_bits, &permission, owner_pw, user_pw); + if (ver_minor >= PDF_VERSION_MIN && ver_minor <= PDF_VERSION_MAX) { + pdf_set_version(ver_minor); + } if (do_encryption) { - if (key_bits < 40 || key_bits > 128 || (key_bits & 0x7)) + if (!(key_bits >= 40 && key_bits <= 128 && (key_bits % 8 == 0)) && + key_bits != 256) ERROR("Invalid encryption key length specified: %u", key_bits); else if (key_bits > 40 && pdf_get_version() < 4) - ERROR("Chosen key length requires at least PDF 1.4. " + ERROR("Chosen key length requires at least PDF 1.4. " \ "Use \"-V 4\" to change."); do_encryption = 1; pdf_enc_set_passwd(key_bits, permission, owner_pw, user_pw); } } - if (ver_minor >= PDF_VERSION_MIN && ver_minor <= PDF_VERSION_MAX) { - pdf_set_version(ver_minor); - } if (landscape_mode) { SWAP(paper_width, paper_height); } diff --git a/Build/source/texk/dvipdfm-x/jpegimage.c b/Build/source/texk/dvipdfm-x/jpegimage.c index 863c6949b95..82179e0e947 100644 --- a/Build/source/texk/dvipdfm-x/jpegimage.c +++ b/Build/source/texk/dvipdfm-x/jpegimage.c @@ -129,34 +129,34 @@ typedef enum { struct JPEG_APPn_JFIF /* APP0 */ { - unsigned short version; - unsigned char units; /* 0: only aspect ratio + uint16_t version; + uint8_t units; /* 0: only aspect ratio * 1: dots per inch * 2: dots per cm */ - unsigned short Xdensity; - unsigned short Ydensity; - unsigned char Xthumbnail; - unsigned char Ythumbnail; + uint16_t Xdensity; + uint16_t Ydensity; + uint8_t Xthumbnail; + uint8_t Ythumbnail; unsigned char *thumbnail; /* Thumbnail data. */ }; struct JPEG_APPn_ICC /* APP2 */ { - unsigned char seq_id; - unsigned char num_chunks; + uint8_t seq_id; + uint8_t num_chunks; unsigned char *chunk; /* Length of ICC profile data in this chunk. */ - unsigned short length; + size_t length; }; struct JPEG_APPn_Adobe /* APP14 */ { - unsigned short version; - unsigned short flag0; - unsigned short flag1; - unsigned char transform; /* color transform code */ + uint16_t version; + uint16_t flag0; + uint16_t flag1; + uint8_t transform; /* color transform code */ }; struct JPEG_APPn_XMP /* APP1 */ @@ -164,7 +164,7 @@ struct JPEG_APPn_XMP /* APP1 */ unsigned char *packet; /* XMP packet */ /* Length of XMP packet data */ - unsigned short length; + size_t length; }; struct JPEG_ext @@ -177,11 +177,11 @@ struct JPEG_ext #define MAX_COUNT 1024 struct JPEG_info { - unsigned short height; - unsigned short width; + uint16_t height; + uint16_t width; - unsigned char bits_per_component; - unsigned char num_components; + uint8_t bits_per_component; + uint8_t num_components; double xdpi; double ydpi; @@ -608,8 +608,8 @@ read_exif_bytes (unsigned char **pp, int n, int endian) #define JPEG_EXIF_TAG_XRESOLUTION 282 #define JPEG_EXIF_TAG_YRESOLUTION 283 #define JPEG_EXIF_TAG_RESOLUTIONUNIT 296 -static unsigned short -read_APP1_Exif (struct JPEG_info *j_info, FILE *fp, unsigned short length) +static size_t +read_APP1_Exif (struct JPEG_info *j_info, FILE *fp, size_t length) { /* this doesn't save the data, just reads the tags we need */ /* based on info from http://www.exif.org/Exif2-2.PDF */ @@ -630,6 +630,8 @@ read_APP1_Exif (struct JPEG_info *j_info, FILE *fp, unsigned short length) while ((p < endptr) && (*p == 0)) p++; + if (p + 8 >= endptr) + goto err; /* TIFF header */ tiff_header = p; if ((p[0] == 'M') && (p[1] == 'M')) @@ -650,6 +652,8 @@ read_APP1_Exif (struct JPEG_info *j_info, FILE *fp, unsigned short length) offset = read_exif_bytes(&p, 4, endian); p = tiff_header + offset; + if (p + 2 >= endptr) + goto err; num_fields = read_exif_bytes(&p, 2, endian); while (num_fields-- > 0 && p < endptr) { int tag, type; @@ -742,11 +746,11 @@ err: return length; } -static unsigned short +static size_t read_APP0_JFIF (struct JPEG_info *j_info, FILE *fp) { struct JPEG_APPn_JFIF *app_data; - unsigned short thumb_data_len; + size_t thumb_data_len; app_data = NEW(1, struct JPEG_APPn_JFIF); app_data->version = get_unsigned_pair(fp); @@ -783,8 +787,8 @@ read_APP0_JFIF (struct JPEG_info *j_info, FILE *fp) return (9 + thumb_data_len); } -static unsigned short -read_APP0_JFXX (FILE *fp, unsigned short length) +static size_t +read_APP0_JFXX (FILE *fp, size_t length) { get_unsigned_byte(fp); /* Extension Code: @@ -800,8 +804,8 @@ read_APP0_JFXX (FILE *fp, unsigned short length) return length; } -static unsigned short -read_APP1_XMP (struct JPEG_info *j_info, FILE *fp, unsigned short length) +static size_t +read_APP1_XMP (struct JPEG_info *j_info, FILE *fp, size_t length) { struct JPEG_APPn_XMP *app_data; @@ -815,8 +819,8 @@ read_APP1_XMP (struct JPEG_info *j_info, FILE *fp, unsigned short length) return length; } -static unsigned short -read_APP2_ICC (struct JPEG_info *j_info, FILE *fp, unsigned short length) +static size_t +read_APP2_ICC (struct JPEG_info *j_info, FILE *fp, size_t length) { struct JPEG_APPn_ICC *app_data; @@ -836,7 +840,7 @@ static int JPEG_copy_stream (struct JPEG_info *j_info, pdf_obj *stream, FILE *fp) { JPEG_marker marker; - long length; + size_t length; int found_SOFn, count; #define SKIP_CHUNK(j,c) ((j)->skipbits[(c) / 8] & (1 << (7 - (c) % 8))) diff --git a/Build/source/texk/dvipdfm-x/pdfencrypt.c b/Build/source/texk/dvipdfm-x/pdfencrypt.c index 480823ca6cb..56853f59589 100644 --- a/Build/source/texk/dvipdfm-x/pdfencrypt.c +++ b/Build/source/texk/dvipdfm-x/pdfencrypt.c @@ -36,41 +36,57 @@ #include "system.h" #include "mem.h" +#include "numbers.h" #include "error.h" #include "pdfobj.h" +#include "unicode.h" #include "dpxcrypt.h" -#include "pdfencrypt.h" +/* Encryption support + * + * Supported: 40-128 bit RC4, 128 bit AES, 256 bit AES + * + * TODO: Convert password to PDFDocEncoding. SASLPrep stringpref for AESV3. + */ -#include "dvipdfmx.h" +/* PDF-2.0 is not published yet. */ +#define USE_ADOBE_EXTENSION 1 -#define MAX_KEY_LEN 16 -#define MAX_STR_LEN 32 +#ifdef USE_ADOBE_EXTENSION +#include "pdfdoc.h" +#endif -static unsigned char algorithm, revision, key_size; -static long permission; +#include "dvipdfmx.h" +#include "pdfencrypt.h" -static unsigned char key_data[MAX_KEY_LEN], id_string[MAX_KEY_LEN]; -static unsigned char opwd_string[MAX_STR_LEN], upwd_string[MAX_STR_LEN]; +static struct pdf_sec { + unsigned char key[32]; + int key_size; -static unsigned long current_label = 0; -static unsigned current_generation = 0; + unsigned char ID[16]; + unsigned char O[48], U[48]; + unsigned char OE[32], UE[32]; + int V, R; + int32_t P; -static ARC4_KEY key; -static MD5_CONTEXT md5_ctx; + struct { + int use_aes; + int encrypt_metadata; + } setting; -static unsigned char md5_buf[MAX_KEY_LEN], key_buf[MAX_KEY_LEN]; -static unsigned char in_buf[MAX_STR_LEN], out_buf[MAX_STR_LEN]; + struct { + uint64_t objnum; + uint16_t gennum; + } label; +} sec_data; -static const unsigned char padding_string[MAX_STR_LEN] = { +static const unsigned char padding_bytes[32] = { 0x28, 0xbf, 0x4e, 0x5e, 0x4e, 0x75, 0x8a, 0x41, 0x64, 0x00, 0x4e, 0x56, 0xff, 0xfa, 0x01, 0x08, 0x2e, 0x2e, 0x00, 0xb6, 0xd0, 0x68, 0x3e, 0x80, 0x2f, 0x0c, 0xa9, 0xfe, 0x64, 0x53, 0x69, 0x7a }; -static char owner_passwd[MAX_PWD_LEN], user_passwd[MAX_PWD_LEN]; - static unsigned char verbose = 0; void pdf_enc_set_verbose (void) @@ -78,277 +94,344 @@ void pdf_enc_set_verbose (void) if (verbose < 255) verbose++; } -#define PRODUCER "%s-%s, Copyright 2002-2014 by Jin-Hwan Cho, Matthias Franz, and Shunsaku Hirata" -void pdf_enc_compute_id_string (char *dviname, char *pdfname) +void +pdf_enc_init (int use_aes, int encrypt_metadata) +{ + struct pdf_sec *p = &sec_data; + + srand((unsigned) time(NULL)); /* For AES IV */ + p->setting.use_aes = use_aes; + p->setting.encrypt_metadata = encrypt_metadata; +} + +#define PRODUCER \ +"%s-%s, Copyright 2002-2014 by Jin-Hwan Cho, Matthias Franz, and Shunsaku Hirata" + +void +pdf_enc_compute_id_string (char *dviname, char *pdfname) { + struct pdf_sec *p = &sec_data; char *date_string, *producer; time_t current_time; struct tm *bd_time; + MD5_CONTEXT md5; + + /* FIXME: This should be placed in main() or somewhere. */ + pdf_enc_init(1, 1); - MD5_init(&md5_ctx); + MD5_init(&md5); - date_string = NEW (15, char); + date_string = NEW(15, char); time(¤t_time); bd_time = localtime(¤t_time); - sprintf (date_string, "%04d%02d%02d%02d%02d%02d", - bd_time -> tm_year+1900, bd_time -> tm_mon+1, bd_time -> tm_mday, - bd_time -> tm_hour, bd_time -> tm_min, bd_time -> tm_sec); - MD5_write(&md5_ctx, (unsigned char *)date_string, strlen(date_string)); - RELEASE (date_string); + sprintf(date_string, "%04d%02d%02d%02d%02d%02d", + bd_time->tm_year + 1900, bd_time->tm_mon + 1, bd_time->tm_mday, + bd_time->tm_hour, bd_time->tm_min, bd_time->tm_sec); + MD5_write(&md5, (unsigned char *)date_string, strlen(date_string)); + RELEASE(date_string); - producer = NEW (strlen(PRODUCER)+strlen(my_name)+strlen(VERSION), char); + producer = NEW(strlen(PRODUCER)+strlen(my_name)+strlen(VERSION), char); sprintf(producer, PRODUCER, my_name, VERSION); - MD5_write(&md5_ctx, (unsigned char *)producer, strlen(producer)); - RELEASE (producer); + MD5_write(&md5, (unsigned char *)producer, strlen(producer)); + RELEASE(producer); if (dviname) - MD5_write(&md5_ctx, (unsigned char *)dviname, strlen(dviname)); + MD5_write(&md5, (unsigned char *)dviname, strlen(dviname)); if (pdfname) - MD5_write(&md5_ctx, (unsigned char *)pdfname, strlen(pdfname)); - MD5_final(id_string, &md5_ctx); + MD5_write(&md5, (unsigned char *)pdfname, strlen(pdfname)); + MD5_final(p->ID, &md5); } -static void passwd_padding (unsigned char *src, unsigned char *dst) +static void +passwd_padding (const char *src, unsigned char *dst) { - register int len = strlen((char *)src); + int len; - if (len > MAX_STR_LEN) - len = MAX_STR_LEN; + len = MIN(32, strlen((char *)src)); memcpy(dst, src, len); - memcpy(dst+len, padding_string, MAX_STR_LEN-len); + memcpy(dst + len, padding_bytes, 32 - len); } -static void compute_owner_password (void) +static void +compute_owner_password (struct pdf_sec *p, + const char *opasswd, const char *upasswd) { - register unsigned char i, j; - /* - * Algorithm 3.3 Computing the encryption dictionary's O (owner password) - * value - * - * 1. Pad or truncate the owner password string as described in step 1 - * of Algorithm 3.2. If there is no owner password, use the user - * password instead. (See implementation note 17 in Appendix H.) - */ - passwd_padding((unsigned char *)(strlen(owner_passwd) > 0 ? owner_passwd : user_passwd), in_buf); - /* - * 2. Initialize the MD5 hash function and pass the result of step 1 - * as input to this function. - */ - MD5_init(&md5_ctx); - MD5_write(&md5_ctx, in_buf, MAX_STR_LEN); - MD5_final(md5_buf, &md5_ctx); - /* - * 3. (Revision 3 only) Do the following 50 times: Take the output - * from the previous MD5 hash and pass it as input into a new - * MD5 hash. - */ - if (revision == 3) + int i, j; + unsigned char padded[32]; + MD5_CONTEXT md5; + ARC4_CONTEXT arc4; + unsigned char hash[16]; + + passwd_padding((strlen(opasswd) > 0 ? opasswd : upasswd), padded); + + MD5_init (&md5); + MD5_write(&md5, padded, 32); + MD5_final(hash, &md5); + if (p->R >= 3) { for (i = 0; i < 50; i++) { /* * NOTE: We truncate each MD5 hash as in the following step. * Otherwise Adobe Reader won't decrypt the PDF file. */ - MD5_init(&md5_ctx); - MD5_write(&md5_ctx, md5_buf, key_size); - MD5_final(md5_buf, &md5_ctx); + MD5_init (&md5); + MD5_write(&md5, hash, p->key_size); + MD5_final(hash, &md5); } - /* - * 4. Create an RC4 encryption key using the first n bytes of the output - * from the final MD5 hash, where n is always 5 for revision 2 but - * for revision 3 depends on the value of the encryption dictionary's - * Length entry. - */ - ARC4_set_key(&key, key_size, md5_buf); - /* - * 5. Pad or truncate the user password string as described in step 1 - * of Algorithm 3.2. - */ - passwd_padding((unsigned char *)user_passwd, in_buf); - /* - * 6. Encrypt the result of step 5, using an RC4 encryption function - * with the encryption key obtained in step 4. - */ - ARC4(&key, MAX_STR_LEN, in_buf, out_buf); - /* - * 7. (Revision 3 only) Do the following 19 times: Take the output - * from the previous invocation of the RC4 function and pass it - * as input to a new invocation of the function; use an encryption - * key generated by taking each byte of the encryption key obtained - * in step 4 and performing an XOR (exclusive or) operation between - * that byte and the single-byte value of the iteration counter - * (from 1 to 19). - */ - if (revision == 3) + } + ARC4_set_key(&arc4, p->key_size, hash); + passwd_padding(upasswd, padded); + { + unsigned char tmp1[32], tmp2[32]; + unsigned char key[16]; + + ARC4(&arc4, 32, padded, tmp1); + if (p->R >= 3) { for (i = 1; i <= 19; i++) { - memcpy(in_buf, out_buf, MAX_STR_LEN); - for (j = 0; j < key_size; j++) - key_buf[j] = md5_buf[j] ^ i; - ARC4_set_key(&key, key_size, key_buf); - ARC4(&key, MAX_STR_LEN, in_buf, out_buf); + memcpy(tmp2, tmp1, 32); + for (j = 0; j < p->key_size; j++) + key[j] = hash[j] ^ i; + ARC4_set_key(&arc4, p->key_size, key); + ARC4(&arc4, 32, tmp2, tmp1); } - /* - * 8. Store the output from the final invocation of the RC4 function - * as the value of the O entry in the encryption dictionary. - */ - memcpy(opwd_string, out_buf, MAX_STR_LEN); + } + } + memcpy(p->O, hash, 32); } -static void compute_encryption_key (unsigned char *pwd) +static void +compute_encryption_key (struct pdf_sec *p, const char *passwd) { - register unsigned char i; - /* - * Algorithm 3.2 Computing an encryption key - * - * 1. Pad or truncate the password string to exactly 32 bytes. If the - * password string is more than 32 bytes long, use only its first - * 32 bytes; if it is less than 32 bytes long, pad it by appending - * the required number of additional bytes from the beginning of - * the following padding string: - * - * < 28 BF 4E 5E 4E 75 8A 41 64 00 4E 56 FF FA 01 08 - * 2E 2E 00 B6 D0 68 3E 80 2F 0C A9 FE 64 53 69 7A > - * - * That is, if the password string is n bytes long, append the - * first 32 - n bytes of the padding string to the end of the - * password string. If the password string is empty (zero-length), - * meaning there is no user password, substitute the entire - * padding string in its place. - */ - passwd_padding(pwd, in_buf); - /* - * 2. Initialize the MD5 hash function and pass the result of step 1 - * as input to this fuction. - */ - MD5_init(&md5_ctx); - MD5_write(&md5_ctx, in_buf, MAX_STR_LEN); - /* - * 3. Pass the value of the encryption dictionary's O entry to the - * MD5 hash function. (Algorithm 3.3 shows how the O value is - * computed.) - */ - MD5_write(&md5_ctx, opwd_string, MAX_STR_LEN); - /* - * 4. Treat the value of the P entry as an unsigned 4-byte integer - * and pass these bytes to the MD5 hash function, low-order byte - * first. - */ - in_buf[0] = (unsigned char)(permission) & 0xFF; - in_buf[1] = (unsigned char)(permission >> 8) & 0xFF; - in_buf[2] = (unsigned char)(permission >> 16) & 0xFF; - in_buf[3] = (unsigned char)(permission >> 24) & 0xFF; - MD5_write(&md5_ctx, in_buf, 4); - /* - * 5. Pass the first element of the file's file identifier array - * (the value of the ID entry in the document's trailer dictionary; - * see Table 3.12 on page 68) to the MD5 hash function and - * finish the hash. - */ - MD5_write(&md5_ctx, id_string, MAX_KEY_LEN); - MD5_final(md5_buf, &md5_ctx); - /* - * 6. (Revision 3 only) Do the following 50 times; Take the output from - * the previous MD5 hash and pass it as input into a new MD5 hash. - */ - if (revision == 3) + int i; + unsigned char hash[32], padded[32]; + MD5_CONTEXT md5; + + passwd_padding(passwd, padded); + MD5_init (&md5); + MD5_write(&md5, padded, 32); + MD5_write(&md5, p->O, 32); + { + unsigned char tmp[4]; + + tmp[0] = (unsigned char)(p->P) & 0xFF; + tmp[1] = (unsigned char)(p->P >> 8) & 0xFF; + tmp[2] = (unsigned char)(p->P >> 16) & 0xFF; + tmp[3] = (unsigned char)(p->P >> 24) & 0xFF; + MD5_write(&md5, tmp, 4); + } + MD5_write(&md5, p->ID, 16); +#if 0 + /* Not Supported Yet */ + if (!p->setting.encrypt_metadata) { + unsigned char tmp[4] = {0xff, 0xff, 0xff, 0xff}; + MD5_write(&md5, tmp, 4); + } +#endif + MD5_final(hash, &md5); + + if (p->R >= 3) { for (i = 0; i < 50; i++) { /* * NOTE: We truncate each MD5 hash as in the following step. * Otherwise Adobe Reader won't decrypt the PDF file. */ - MD5_init(&md5_ctx); - MD5_write(&md5_ctx, md5_buf, key_size); - MD5_final(md5_buf, &md5_ctx); + MD5_init (&md5); + MD5_write(&md5, hash, p->key_size); + MD5_final(hash, &md5); } - /* - * 7. Set the encryption key to the first n bytes of the output from - * the final MD5 hash, where n is always 5 for revision 2 but for - * revision 3 depends on the value of the encryption dictionary's - * Length entry. - */ - memcpy(key_data, md5_buf, key_size); + } + memcpy(p->key, hash, p->key_size); } -static void compute_user_password (void) +static void +compute_user_password (struct pdf_sec *p, const char *uplain) { - register unsigned char i, j; - /* - * Algorithm 3.4 Computing the encryption dictionary's U (user password) - * value (Revision 2) - * - * 1. Create an encryption key based on the user password string, as - * described in Algorithm 3.2. - * - * 2. Encrypt the 32-byte padding string shown in step 1 of Algorithm - * 3.2, using an RC4 encryption fuction with the encryption key from - * the preceeding step. - * - * 3. Store the result of step 2 as the value of the U entry in the - * encryption dictionary. - */ - /* - * Algorithm 3.5 Computing the encryption dictionary's U (user password) - * value (Revision 3) - * - * 1. Create an encryption key based on the user password string, as - * described in Algorithm 3.2. - * - * 2. Initialize the MD5 hash function and pass the 32-byte padding - * string shown in step 1 of Algorithm 3.2 as input to this function. - * - * 3. Pass the first element of the file's file identifier array (the - * value of the ID entry in the document's trailer dictionary; see - * Table 3.12 on page 68) to the hash function and finish the hash. - * - * 4. Encrypt the 16-byte result of the hash, using an RC4 encryption - * function with the encryption key from step 1. - * - * 5. Do the following 19 times: Take the output from the previous - * invocation of the RC4 function and pass it as input to a new - * invocation of the function; use an encryption key generated by - * taking each byte of the original encryption key (obtained in - * step 1) and performing an XOR (exclusive or) operation between - * that byte and the single-byte value of the iteration counter - * (from 1 to 19). - * - * 6. Append 16 bytes of arbitrary padding to the output from the - * final invocation of the RC4 function and store the 32-byte - * result as the value of the U entry in the encryption dictionary. - */ - compute_encryption_key((unsigned char *)user_passwd); + int i, j; + ARC4_CONTEXT arc4; + MD5_CONTEXT md5; + unsigned char upasswd[32]; + + compute_encryption_key(p, uplain); - switch (revision) { + switch (p->R) { case 2: - ARC4_set_key(&key, key_size, key_data); - ARC4(&key, MAX_STR_LEN, padding_string, out_buf); + ARC4_set_key(&arc4, p->key_size, p->key); + ARC4(&arc4, 32, padding_bytes, upasswd); break; - case 3: - MD5_init(&md5_ctx); - MD5_write(&md5_ctx, padding_string, MAX_STR_LEN); + case 3: case 4: + { + unsigned char hash[32]; + unsigned char tmp1[32], tmp2[32]; - MD5_write(&md5_ctx, id_string, MAX_KEY_LEN); - MD5_final(md5_buf, &md5_ctx); + MD5_init (&md5); + MD5_write(&md5, padding_bytes, 32); - ARC4_set_key(&key, key_size, key_data); - ARC4(&key, MAX_KEY_LEN, md5_buf, out_buf); + MD5_write(&md5, p->ID, 16); + MD5_final(hash, &md5); + + ARC4_set_key(&arc4, p->key_size, p->key); + ARC4(&arc4, 16, hash, tmp1); for (i = 1; i <= 19; i++) { - memcpy(in_buf, out_buf, MAX_KEY_LEN); - for (j = 0; j < key_size; j++) - key_buf[j] = key_data[j] ^ i; - ARC4_set_key(&key, key_size, key_buf); - ARC4(&key, MAX_KEY_LEN, in_buf, out_buf); + unsigned char key[16]; + + memcpy(tmp2, tmp1, 16); + for (j = 0; j < p->key_size; j++) + key[j] = p->key[j] ^ i; + ARC4_set_key(&arc4, p->key_size, key); + ARC4(&arc4, 16, tmp2, tmp1); + } + memcpy(upasswd, tmp1, 32); } break; default: - ERROR("Invalid revision number.\n"); + ERROR("Invalid revision number."); } - memcpy(upwd_string, out_buf, MAX_STR_LEN); + memcpy(p->U, upasswd, 32); +} + +/* Algorithm 2.B from ISO 32000-1 chapter 7 */ +static void +compute_hash_V5 (unsigned char *hash, + const char *passwd, + const unsigned char *salt, + const unsigned char *user_key, int R /* revision */) +{ + SHA256_CONTEXT sha; + unsigned char K[64]; + size_t K_len; + int nround; + + SHA256_init (&sha); + SHA256_write(&sha, (const unsigned char *)passwd, strlen(passwd)); + SHA256_write(&sha, salt, 8); + if (user_key) + SHA256_write(&sha, user_key, 48); + SHA256_final(hash, &sha); + + ASSERT( R ==5 || R == 6 ); + + if (R == 5) + return; + + memcpy(K, hash, 32); K_len = 32; + for (nround = 1; ; nround++) { /* Initial K count as nround 0. */ + unsigned char K1[256], *Kr, *E; + size_t K1_len, E_len; + int i, c, E_mod3 = 0; + + K1_len = strlen(passwd) + K_len + (user_key ? 48 : 0); + ASSERT(K1_len < 240); + memcpy(K1, passwd, strlen(passwd)); + memcpy(K1 + strlen(passwd), K, K_len); + if (user_key) + memcpy(K1 + strlen(passwd) + K_len, user_key, 48); + + Kr = NEW(K1_len * 64, unsigned char); + for (i = 0; i < 64; i++) + memcpy(Kr + i * K1_len, K1, K1_len); + AES_cbc_encrypt(K, 16, K + 16, 0, Kr, K1_len * 64, &E, &E_len); + RELEASE(Kr); + + for (i = 0; i < 16; i++) + E_mod3 += E[i]; + E_mod3 %= 3; + + switch (E_mod3) { + case 0: + { + SHA256_CONTEXT sha; + + SHA256_init (&sha); + SHA256_write(&sha, E, E_len); + SHA256_final(K, &sha); + K_len = 32; + } + break; + case 1: + { + SHA512_CONTEXT sha; + + SHA384_init (&sha); + SHA384_write(&sha, E, E_len); + SHA384_final(K, &sha); + K_len = 48; + } + break; + case 2: + { + SHA512_CONTEXT sha; + + SHA512_init (&sha); + SHA512_write(&sha, E, E_len); + SHA512_final(K, &sha); + K_len = 64; + } + break; + } + c = (uint8_t) E[E_len - 1]; + RELEASE(E); + if (nround >= 64 && c <= nround - 32) + break; + } + memcpy(hash, K, 32); +} + +static void +compute_owner_password_V5 (struct pdf_sec *p, const char *oplain) +{ + unsigned char vsalt[8], ksalt[8], hash[32]; + unsigned char *OE, iv[AES_BLOCKSIZE]; + size_t OE_len; + int i; + + for (i = 0; i < 8 ; i++) { + vsalt[i] = rand() % 256; + ksalt[i] = rand() % 256; + } + + compute_hash_V5(hash, oplain, vsalt, p->U, p->R); + memcpy(p->O, hash, 32); + memcpy(p->O + 32, vsalt, 8); + memcpy(p->O + 40, ksalt, 8); + + compute_hash_V5(hash, oplain, ksalt, p->U, p->R); + memset(iv, 0, AES_BLOCKSIZE); + AES_cbc_encrypt(hash, 32, iv, 0, p->key, p->key_size, &OE, &OE_len); + memcpy(p->OE, OE, 32); + RELEASE(OE); +} + +static void +compute_user_password_V5 (struct pdf_sec *p, const char *uplain) +{ + unsigned char vsalt[8], ksalt[8], hash[32]; + unsigned char *UE, iv[AES_BLOCKSIZE]; + size_t UE_len; + int i; + + for (i = 0; i < 8 ; i++) { + vsalt[i] = rand() % 256; + ksalt[i] = rand() % 256; + } + + compute_hash_V5(hash, uplain, vsalt, NULL, p->R); + memcpy(p->U, hash, 32); + memcpy(p->U + 32, vsalt, 8); + memcpy(p->U + 40, ksalt, 8); + + compute_hash_V5(hash, uplain, ksalt, NULL, p->R); + memset(iv, 0, AES_BLOCKSIZE); + AES_cbc_encrypt(hash, 32, iv, 0, p->key, p->key_size, &UE, &UE_len); + memcpy(p->UE, UE, 32); + RELEASE(UE); } #ifdef WIN32 -static char *getpass (const char *prompt) +/* Broken on mintty? */ +static char * +getpass (const char *prompt) { static char pwd_buf[128]; size_t i; @@ -357,7 +440,7 @@ static char *getpass (const char *prompt) fflush(stderr); for (i = 0; i < sizeof(pwd_buf)-1; i++) { pwd_buf[i] = getch(); - if (pwd_buf[i] == '\r') + if (pwd_buf[i] == '\r' || pwd_buf[i] == '\n') break; fputs("*", stderr); fflush(stderr); @@ -368,172 +451,369 @@ static char *getpass (const char *prompt) } #endif -void pdf_enc_set_passwd (unsigned bits, unsigned perm, const char *owner_pw, const char *user_pw) +static void +check_version (struct pdf_sec *p, int version) +{ + if (p->V > 2 && version < 4) { + WARN("Current encryption setting requires PDF version >= 1.4."); + p->V = 1; + p->key_size = 5; + } else if (p->V == 4 && version < 5) { + WARN("Current encryption setting requires PDF version >= 1.5."); + p->V = 2; + } else if (p->V ==5 && version < 7) { + WARN("Current encryption setting requires PDF version >= 1.7" \ + " (plus Adobe Extension Level 3)."); + p->V = 4; + } +} + +/* Dummy routine for stringprep - NOT IMPLEMENTED YET + * + * Preprocessing of a user-provided password consists first of + * normalizing its representation by applying the "SASLPrep" profile (RFC 4013) + * of the "stringprep" algorithm (RFC 3454) to the supplied password using the + * Normalize and BiDi options. + */ +typedef int Stringprep_profile_flags; +#define STRINGPREP_OK 0 +#define STRINGPREP_ERROR -1 +static int +stringprep_profile(const char *input, char **output, const char *profile, + Stringprep_profile_flags flags) +{ + const char *p, *endptr; + + p = input; endptr = p + strlen(p); + while (p < endptr) { + int32_t ucv = UC_UTF8_decode_char((const unsigned char **)&p, + (const unsigned char *)endptr); + if (!UC_is_valid(ucv)) + return STRINGPREP_ERROR; + } + + *output = NEW(strlen(input) + 1, char); + strcpy(*output, input); + + (void) profile; + (void) flags; + + return STRINGPREP_OK; +} + +static int +preproc_password (const char *passwd, char *outbuf, int V) { + char *saslpwd = NULL; + int error = 0; + + memset(outbuf, 0, 128); + switch (V) { + case 1: case 2: case 3: case 4: + { + int i; + /* Need to be converted to PDFDocEncoding - UNIMPLEMENTED */ + for (i = 0; i < strlen(passwd); i++) { + if (passwd[i] < 0x20 || passwd[i] > 0x7e) + WARN("Non-ASCII-printable character found in password."); + } + memcpy(outbuf, passwd, MIN(127, strlen(passwd))); + } + break; + case 5: + /* This is a dummy routine - not actually stringprep password... */ + if (stringprep_profile(passwd, &saslpwd, + "SASLprep", 0) != STRINGPREP_OK) + return -1; + else if (saslpwd) { + memcpy(outbuf, saslpwd, MIN(127, strlen(saslpwd))); + RELEASE(saslpwd); + } + break; + default: + error = -1; + break; + } + + return error; +} + +void +pdf_enc_set_passwd (unsigned int bits, unsigned int perm, + const char *oplain, const char *uplain) +{ + struct pdf_sec *p = &sec_data; + char input[128], opasswd[128], upasswd[128]; char *retry_passwd; + int version; + + version = pdf_get_version(); + + p->key_size = (int) (bits / 8); + if (p->key_size == 5) /* 40bit */ + p->V = 1; + else if (p->key_size <= 16) { + p->V = p->setting.use_aes ? 4 : 2; + } else if (p->key_size == 32) { + p->V = 5; + } else { + WARN("Key length %d unsupported.", bits); + p->key_size = 5; + p->V = 2; + } + check_version(p, version); - if (owner_pw) { - strncpy(owner_passwd, owner_pw, MAX_PWD_LEN); - } else + p->P = (int32_t) (perm | 0xC0U); + switch (p->V) { + case 1: + p->R = (p->P < 0x100L) ? 2 : 3; + break; + case 2: case 3: + p->R = 3; + break; + case 4: + p->R = 4; + break; + case 5: +#if USE_ADOBE_EXTENSION + p->R = 6; +#else + WARN("Encryption V 5 unsupported."); + p->R = 4; p->V = 4; +#endif + break; + default: + p->R = 3; + break; + } + + memset(opasswd, 0, 128); + memset(upasswd, 0, 128); + /* Password must be preprocessed. */ + if (oplain) { + if (preproc_password(oplain, opasswd, p->V) < 0) + WARN("Invaid UTF-8 string for password."); + } else { while (1) { - strncpy(owner_passwd, getpass("Owner password: "), MAX_PWD_LEN); + strncpy(input, getpass("Owner password: "), MAX_PWD_LEN); retry_passwd = getpass("Re-enter owner password: "); - if (!strncmp(owner_passwd, retry_passwd, MAX_PWD_LEN)) + if (!strncmp(input, retry_passwd, MAX_PWD_LEN)) break; fputs("Password is not identical.\nTry again.\n", stderr); fflush(stderr); } - - if (user_pw) { - strncpy(user_passwd, user_pw, MAX_PWD_LEN); - } else + if (preproc_password(input, opasswd, p->V) < 0) + WARN("Invaid UTF-8 string for password."); + } + if (uplain) { + if (preproc_password(uplain, upasswd, p->V) < 0) + WARN("Invalid UTF-8 string for passowrd."); + } else { while (1) { - strncpy(user_passwd, getpass("User password: "), MAX_PWD_LEN); + strncpy(input, getpass("User password: "), MAX_PWD_LEN); retry_passwd = getpass("Re-enter user password: "); - if (!strncmp(user_passwd, retry_passwd, MAX_PWD_LEN)) + if (!strncmp(input, retry_passwd, MAX_PWD_LEN)) break; fputs("Password is not identical.\nTry again.\n", stderr); fflush(stderr); } + if (preproc_password(input, upasswd, p->V) < 0) + WARN("Invaid UTF-8 string for password."); + } - key_size = (unsigned char)(bits / 8); - algorithm = (key_size == 5 ? 1 : 2); - permission = (long) (perm | 0xC0U); - revision = ((algorithm == 1 && permission < 0x100L) ? 2 : 3); - if (revision == 3) - permission |= ~0xFFFL; + if (p->R >= 3) + p->P |= 0xFFFFF000U; + + if (p->V < 5) { + compute_owner_password(p, opasswd, upasswd); + compute_user_password (p, upasswd); + } else if (p->V == 5) { + int i; + + for (i = 0; i < 32; i++) + p->key[i] = rand() % 256; + p->key_size = 32; + /* Order is important here */ + compute_user_password_V5 (p, upasswd); + compute_owner_password_V5(p, opasswd); /* uses p->U */ + } +} - compute_owner_password(); - compute_user_password(); +static void +calculate_key (struct pdf_sec *p, unsigned char *key) +{ + int len = p->key_size + 5; + unsigned char tmp[25]; + MD5_CONTEXT md5; + + memcpy(tmp, p->key, p->key_size); + tmp[p->key_size ] = (unsigned char) p->label.objnum & 0xFF; + tmp[p->key_size+1] = (unsigned char)(p->label.objnum >> 8) & 0xFF; + tmp[p->key_size+2] = (unsigned char)(p->label.objnum >> 16) & 0xFF; + tmp[p->key_size+3] = (unsigned char)(p->label.gennum) & 0xFF; + tmp[p->key_size+4] = (unsigned char)(p->label.gennum >> 8) & 0xFF; + if (p->V >= 4) { + tmp[p->key_size + 5] = 0x73; + tmp[p->key_size + 6] = 0x41; + tmp[p->key_size + 7] = 0x6c; + tmp[p->key_size + 8] = 0x54; + len += 4; + } + MD5_init (&md5); + MD5_write(&md5, tmp, len); + MD5_final(key, &md5); } -void pdf_encrypt_data (unsigned char *data, unsigned long len) +void +pdf_encrypt_data (const unsigned char *plain, size_t plain_len, + unsigned char **cipher, size_t *cipher_len) { - unsigned char *result; - - memcpy(in_buf, key_data, key_size); - in_buf[key_size] = (unsigned char)(current_label) & 0xFF; - in_buf[key_size+1] = (unsigned char)(current_label >> 8) & 0xFF; - in_buf[key_size+2] = (unsigned char)(current_label >> 16) & 0xFF; - in_buf[key_size+3] = (unsigned char)(current_generation) & 0xFF; - in_buf[key_size+4] = (unsigned char)(current_generation >> 8) & 0xFF; - - MD5_init(&md5_ctx); - MD5_write(&md5_ctx, in_buf, key_size+5); - MD5_final(md5_buf, &md5_ctx); - - result = NEW (len, unsigned char); - ARC4_set_key(&key, (key_size > 10 ? MAX_KEY_LEN : key_size+5), md5_buf); - ARC4(&key, len, data, result); - memcpy(data, result, len); - RELEASE (result); + struct pdf_sec *p = &sec_data; + unsigned char key[32]; + + switch (p->V) { + case 1: case 2: + calculate_key(p, key); + { + ARC4_CONTEXT arc4; + + *cipher_len = plain_len; + *cipher = NEW(*cipher_len, unsigned char); + ARC4_set_key(&arc4, MIN(16, p->key_size + 5), key); + ARC4(&arc4, plain_len, plain, *cipher); + } + break; + case 4: + calculate_key(p, key); + AES_cbc_encrypt(key, MIN(16, p->key_size + 5), NULL, 1, + plain, plain_len, cipher, cipher_len); + break; + case 5: + AES_cbc_encrypt(p->key, p->key_size, NULL, 1, + plain, plain_len, cipher, cipher_len); + break; + default: + ERROR("pdfencrypt: Unexpected V value: %d", p->V); + break; + } } -pdf_obj *pdf_encrypt_obj (void) +pdf_obj * +pdf_encrypt_obj (void) { + struct pdf_sec *p = &sec_data; pdf_obj *doc_encrypt; -#ifdef DEBUG - fprintf (stderr, "(pdf_encrypt_obj)"); -#endif - - doc_encrypt = pdf_new_dict (); + doc_encrypt = pdf_new_dict(); - /* KEY : Filter - * TYPE : name - * VALUE: (Required) The name of the security handler for this document; - * see below. Default value: Standard, for the built-in security - * handler. - */ - pdf_add_dict (doc_encrypt, - pdf_new_name ("Filter"), - pdf_new_name ("Standard")); - /* KEY : V - * TYPE : number - * VALUE: (Optional but strongly recommended) A code specifying the - * algorithm to be used in encrypting and decrypting the document: - * 0 An algorithm that is undocumented and no longer supported, - * and whose use is strongly discouraged. - * 1 Algorithm 3.1 on page 73, with an encryption key length - * of 40 bits; see below. - * 2 (PDF 1.4) Algorithm 3.1 on page 73, but allowing encryption - * key lengths greater than 40 bits. - * 3 (PDF 1.4) An unpublished algorithm allowing encryption key - * lengths ranging from 40 to 128 bits. (This algorithm is - * unpublished as an export requirement of the U.S. Department - * of Commerce.) - * The default value if this entry is omitted is 0, but a value - * of 1 or greater is strongly recommended. - */ - pdf_add_dict (doc_encrypt, - pdf_new_name ("V"), - pdf_new_number (algorithm)); - /* KEY : Length - * TYPE : integer - * VALUE: (Optional; PDF 1.4; only if V is 2 or 3) The length of the - * encryption key, in bits. The value must be a multiple of 8, - * in the range 40 to 128. Default value: 40. - */ - if (algorithm > 1) - pdf_add_dict (doc_encrypt, - pdf_new_name ("Length"), - pdf_new_number (key_size * 8)); - /* KEY : R - * TYPE : number - * VALUE: (Required) A number specifying which revision of the standard - * security handler should be used to interpret this dictionary. - * The revison number should be 2 if the document is encrypted - * with a V value less than 2; otherwise this value should be 3. - */ - pdf_add_dict (doc_encrypt, - pdf_new_name ("R"), - pdf_new_number (revision)); - /* KEY : O - * TYPE : string - * VALUE: (Required) A 32-byte string, based on both the owner and - * user passwords, that is used in computing the encryption - * key and in determining whether a valid owner password was - * entered. - */ - pdf_add_dict (doc_encrypt, - pdf_new_name ("O"), - pdf_new_string (opwd_string, 32)); - /* KEY : U - * TYPE : string - * VALUE: (Required) A 32-byte string, based on the user password, - * that is used in determining whether to prompt the user - * for a password and, if so, whether a valid user or owner - * password was entered. - */ - pdf_add_dict (doc_encrypt, - pdf_new_name ("U"), - pdf_new_string (upwd_string, 32)); - /* KEY : P - * TYPE : (signed 32 bit) integer - * VALUE: (Required) A set of flags specifying which operations are - * permitted when the document is opened with user access. + pdf_add_dict(doc_encrypt, pdf_new_name("Filter"), pdf_new_name("Standard")); + pdf_add_dict(doc_encrypt, pdf_new_name("V"), pdf_new_number(p->V)); +#if 0 + /* PDF reference describes it as: + * + * (Optional; PDF 1.4; only if V is 2 or 3) + * + * but Acrobat *requires* this even for V 5! */ - pdf_add_dict (doc_encrypt, - pdf_new_name ("P"), - pdf_new_number (permission)); + if (p->V > 1 && p->V < 4) +#endif + pdf_add_dict(doc_encrypt, + pdf_new_name("Length"), pdf_new_number(p->key_size * 8)); + if (p->V >= 4) { + pdf_obj *CF, *StdCF; + CF = pdf_new_dict(); + StdCF = pdf_new_dict(); + pdf_add_dict(StdCF, pdf_new_name("CFM"), + pdf_new_name( (p->V == 4) ? "AESV2" : "AESV3" )); + pdf_add_dict(StdCF, pdf_new_name("AuthEvent"), pdf_new_name("DocOpen")); + pdf_add_dict(StdCF, pdf_new_name("Length"), pdf_new_number(p->key_size)); + pdf_add_dict(CF, pdf_new_name("StdCF"), StdCF); + pdf_add_dict(doc_encrypt, pdf_new_name("CF"), CF); + pdf_add_dict(doc_encrypt, pdf_new_name("StmF"), pdf_new_name("StdCF")); + pdf_add_dict(doc_encrypt, pdf_new_name("StrF"), pdf_new_name("StdCF")); +#if 0 + /* NOT SUPPORTED YET */ + if (!p->setting.encrypt_metadata) + pdf_add_dict(doc_encrypt, + pdf_new_name("EncryptMetadata"), pdf_new_boolean(false)); +#endif + } + pdf_add_dict(doc_encrypt, pdf_new_name("R"), pdf_new_number(p->R)); + if (p->V < 5) { + pdf_add_dict(doc_encrypt, pdf_new_name("O"), pdf_new_string(p->O, 32)); + pdf_add_dict(doc_encrypt, pdf_new_name("U"), pdf_new_string(p->U, 32)); + } else if (p->V == 5) { + pdf_add_dict(doc_encrypt, pdf_new_name("O"), pdf_new_string(p->O, 48)); + pdf_add_dict(doc_encrypt, pdf_new_name("U"), pdf_new_string(p->U, 48)); + } + pdf_add_dict(doc_encrypt, pdf_new_name("P"), pdf_new_number(p->P)); + + if (p->V == 5) { + unsigned char perms[16], *cipher = NULL; + size_t cipher_len = 0; + + pdf_add_dict(doc_encrypt, pdf_new_name("OE"), pdf_new_string(p->OE, 32)); + pdf_add_dict(doc_encrypt, pdf_new_name("UE"), pdf_new_string(p->UE, 32)); + perms[0] = p->P & 0xff; + perms[1] = (p->P >> 8) & 0xff; + perms[2] = (p->P >> 16) & 0xff; + perms[3] = (p->P >> 24) & 0xff; + perms[4] = 0xff; + perms[5] = 0xff; + perms[6] = 0xff; + perms[7] = 0xff; + perms[8] = p->setting.encrypt_metadata ? 'T' : 'F'; + perms[9] = 'a'; + perms[10] = 'd'; + perms[11] = 'b'; + perms[12] = 0; + perms[13] = 0; + perms[14] = 0; + perms[15] = 0; + AES_ecb_encrypt(p->key, p->key_size, perms, 16, &cipher, &cipher_len); + pdf_add_dict(doc_encrypt, + pdf_new_name("Perms"), pdf_new_string(cipher, cipher_len)); + RELEASE(cipher); + } + +#ifdef USE_ADOBE_EXTENSION + if (p->R > 5) { + pdf_obj *catalog = pdf_doc_catalog(); + pdf_obj *ext = pdf_new_dict(); + pdf_obj *adbe = pdf_new_dict(); + + pdf_add_dict(adbe, pdf_new_name("BaseVersion"), pdf_new_name("1.7")); + pdf_add_dict(adbe, pdf_new_name("ExtensionLevel"), + pdf_new_number(p->R == 5 ? 3 : 8)); + pdf_add_dict(ext, pdf_new_name("ADBE"), adbe); + pdf_add_dict(catalog, pdf_new_name("Extensions"), ext); + } +#endif return doc_encrypt; } pdf_obj *pdf_enc_id_array (void) { + struct pdf_sec *p = &sec_data; pdf_obj *id = pdf_new_array(); - pdf_add_array(id, pdf_new_string(id_string, MAX_KEY_LEN)); - pdf_add_array(id, pdf_new_string(id_string, MAX_KEY_LEN)); + + pdf_add_array(id, pdf_new_string(p->ID, 16)); + pdf_add_array(id, pdf_new_string(p->ID, 16)); + return id; } void pdf_enc_set_label (unsigned long label) { - current_label = label; + struct pdf_sec *p = &sec_data; + + p->label.objnum = label; } void pdf_enc_set_generation (unsigned generation) { - current_generation = generation; + struct pdf_sec *p = &sec_data; + + p->label.gennum = generation; } diff --git a/Build/source/texk/dvipdfm-x/pdfencrypt.h b/Build/source/texk/dvipdfm-x/pdfencrypt.h index 6823e7718d5..e6ad17737b5 100644 --- a/Build/source/texk/dvipdfm-x/pdfencrypt.h +++ b/Build/source/texk/dvipdfm-x/pdfencrypt.h @@ -25,15 +25,17 @@ #include "pdfobj.h" -#define MAX_PWD_LEN 128 +#define MAX_PWD_LEN 127 extern void pdf_enc_set_verbose (void); extern pdf_obj *pdf_enc_id_array (void); extern void pdf_enc_compute_id_string (char *dviname, char *pdfname); extern void pdf_enc_set_label (unsigned long label); extern void pdf_enc_set_generation (unsigned generation); -extern void pdf_enc_set_passwd (unsigned size, unsigned perm, const char *owner, const char *user); -extern void pdf_encrypt_data (unsigned char *data, unsigned long len); +extern void pdf_enc_set_passwd (unsigned int size, unsigned int perm, + const char *owner, const char *user); +extern void pdf_encrypt_data (const unsigned char *plain, size_t plain_len, + unsigned char **cipher, size_t *cipher_len); extern pdf_obj *pdf_encrypt_obj (void); #endif /* _PDFENCRYPT_H_ */ diff --git a/Build/source/texk/dvipdfm-x/pdfobj.c b/Build/source/texk/dvipdfm-x/pdfobj.c index bdb01e4b16e..406ab103c6c 100644 --- a/Build/source/texk/dvipdfm-x/pdfobj.c +++ b/Build/source/texk/dvipdfm-x/pdfobj.c @@ -939,19 +939,22 @@ pdfobj_escape_str (char *buffer, int bufsize, const unsigned char *s, int len) static void write_string (pdf_string *str, FILE *file) { - unsigned char *s; + unsigned char *s = NULL; char wbuf[FORMAT_BUF_SIZE]; /* Shouldn't use format_buffer[]. */ int nescc = 0, i, count; + size_t len = 0; + if (enc_mode) { + pdf_encrypt_data(str->string, str->length, &s, &len); + } else { s = str->string; - - if (enc_mode) - pdf_encrypt_data(s, str->length); + len = str->length; + } /* * Count all ASCII non-printable characters. */ - for (i = 0; i < str->length; i++) { + for (i = 0; i < len; i++) { if (!isprint(s[i])) nescc++; } @@ -959,9 +962,9 @@ write_string (pdf_string *str, FILE *file) * If the string contains much escaped chars, then we write it as * ASCII hex string. */ - if (nescc > str->length / 3) { + if (nescc > len / 3) { pdf_out_char(file, '<'); - for (i = 0; i < str->length; i++) { + for (i = 0; i < len; i++) { pdf_out_xchar(file, s[i]); } pdf_out_char(file, '>'); @@ -975,12 +978,14 @@ write_string (pdf_string *str, FILE *file) * is also used for strings of text with no kerning. These must be * handled as quickly as possible since there are so many of them. */ - for (i = 0; i < str->length; i++) { + for (i = 0; i < len; i++) { count = pdfobj_escape_str(wbuf, FORMAT_BUF_SIZE, &(s[i]), 1); pdf_out(file, wbuf, count); } pdf_out_char(file, ')'); } + if (enc_mode && s) + RELEASE(s); } static void @@ -1640,7 +1645,17 @@ write_stream (pdf_stream *stream, FILE *file) } #endif /* HAVE_ZLIB */ -#if 0 + /* AES will change the size of data! */ + if (enc_mode) { + unsigned char *cipher = NULL; + size_t cipher_len = 0; + pdf_encrypt_data(filtered, filtered_length, &cipher, &cipher_len); + RELEASE(filtered); + filtered = cipher; + filtered_length = cipher_len; + } + + #if 0 /* * An optional end-of-line marker preceding the "endstream" is * not part of stream data. See, PDF Reference 4th ed., p. 38. @@ -1652,6 +1667,7 @@ write_stream (pdf_stream *stream, FILE *file) filtered_length++; } #endif + pdf_add_dict(stream->dict, pdf_new_name("Length"), pdf_new_number(filtered_length)); @@ -1659,12 +1675,8 @@ write_stream (pdf_stream *stream, FILE *file) pdf_out(file, "\nstream\n", 8); - if (enc_mode) - pdf_encrypt_data(filtered, filtered_length); - - if (filtered_length > 0) { + if (filtered_length > 0) pdf_out(file, filtered, filtered_length); - } RELEASE(filtered); /* diff --git a/Build/source/texk/dvipdfm-x/pngimage.c b/Build/source/texk/dvipdfm-x/pngimage.c index 979ab06a220..5237e169ed7 100644 --- a/Build/source/texk/dvipdfm-x/pngimage.c +++ b/Build/source/texk/dvipdfm-x/pngimage.c @@ -20,6 +20,7 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ + #ifdef HAVE_CONFIG_H #include <config.h> #endif @@ -27,21 +28,13 @@ /* * PNG SUPPORT * - * All bitdepth less than 16 is supported. + * All bitdepth supported. * Supported color types are: PALETTE, RGB, GRAY, RGB_ALPHA, GRAY_ALPHA. * Supported ancillary chunks: tRNS, cHRM, gAMA, (sRGB), (iCCP) * * cHRM support is not tested well. CalRGB/CalGray colorspace is used for * PNG images that have cHRM chunk. * - * LIMITATIONS - * - * Recent version of PDF (>= 1.5) support 16 bpc, but 16 bit bitdepth PNG - * images are automatically converted to 8 bit bitpedth image. - * - * TODO - * 16 bpc support for PDF-1.5. JBIG compression for monochrome image. - * Predictor for deflate ? */ #include "system.h" @@ -64,10 +57,6 @@ #define PNG_NO_WRITE_SUPPORTED #define PNG_NO_MNG_FEATURES #define PNG_NO_PROGRESSIVE_READ -#if 0 -/* 16_TO_8 required. */ -#define PNG_NO_READ_TRANSFORMS -#endif #include <png.h> #include "pngimage.h" @@ -197,11 +186,14 @@ png_include_image (pdf_ximage *ximage, FILE *png_file) height = png_get_image_height(png_ptr, png_info_ptr); bpc = png_get_bit_depth (png_ptr, png_info_ptr); - /* We do not need 16-bpc color. Ask libpng to convert down to 8-bpc. */ + /* Ask libpng to convert down to 8-bpc. */ if (bpc > 8) { + if (pdf_get_version() < 5) { + WARN("%s: 16-bpc PNG requires PDF version 1.5.", PNG_DEBUG_STR); png_set_strip_16(png_ptr); bpc = 8; } + } /* Ask libpng to gamma-correct. * It is wrong to assume screen gamma value 2.2 but... * We do gamma correction here only when uncalibrated color space is used. @@ -209,7 +201,6 @@ png_include_image (pdf_ximage *ximage, FILE *png_file) if (!png_get_valid(png_ptr, png_info_ptr, PNG_INFO_iCCP) && !png_get_valid(png_ptr, png_info_ptr, PNG_INFO_sRGB) && !png_get_valid(png_ptr, png_info_ptr, PNG_INFO_cHRM) && - !png_get_valid(png_ptr, png_info_ptr, PNG_INFO_sRGB) && png_get_valid(png_ptr, png_info_ptr, PNG_INFO_gAMA)) { double G = 1.0; png_get_gAMA (png_ptr, png_info_ptr, &G); @@ -996,19 +987,21 @@ strip_soft_mask (png_structp png_ptr, png_infop info_ptr, png_uint_32 width, png_uint_32 height) { pdf_obj *smask, *dict; - png_byte color_type; + png_byte color_type, bpc; png_bytep smask_data_ptr; png_uint_32 i; color_type = png_get_color_type(png_ptr, info_ptr); - + bpc = png_get_bit_depth (png_ptr, info_ptr); if (color_type & PNG_COLOR_MASK_COLOR) { - if (*rowbytes_ptr != 4*width*sizeof(png_byte)) { /* Something wrong */ + int bps = (bpc == 8) ? 4 : 8; + if (*rowbytes_ptr != bps*width*sizeof(png_byte)) { /* Something wrong */ WARN("%s: Inconsistent rowbytes value.", PNG_DEBUG_STR); return NULL; } } else { - if (*rowbytes_ptr != 2*width*sizeof(png_byte)) { /* Something wrong */ + int bps = (bpc == 8) ? 2 : 4; + if (*rowbytes_ptr != bps*width*sizeof(png_byte)) { /* Something wrong */ WARN("%s: Inconsistent rowbytes value.", PNG_DEBUG_STR); return NULL; } @@ -1021,24 +1014,43 @@ strip_soft_mask (png_structp png_ptr, png_infop info_ptr, pdf_add_dict(dict, pdf_new_name("Width"), pdf_new_number(width)); pdf_add_dict(dict, pdf_new_name("Height"), pdf_new_number(height)); pdf_add_dict(dict, pdf_new_name("ColorSpace"), pdf_new_name("DeviceGray")); - pdf_add_dict(dict, pdf_new_name("BitsPerComponent"), pdf_new_number(8)); + pdf_add_dict(dict, pdf_new_name("BitsPerComponent"), pdf_new_number(bpc)); - smask_data_ptr = (png_bytep) NEW(width*height, png_byte); + smask_data_ptr = (png_bytep) NEW((bpc/8)*width*height, png_byte); switch (color_type) { case PNG_COLOR_TYPE_RGB_ALPHA: + if (bpc == 8) { for (i = 0; i < width*height; i++) { memmove(image_data_ptr+(3*i), image_data_ptr+(4*i), 3); smask_data_ptr[i] = image_data_ptr[4*i+3]; } *rowbytes_ptr = 3*width*sizeof(png_byte); + } else { + for (i = 0; i < width*height; i++) { + memmove(image_data_ptr+(6*i), image_data_ptr+(8*i), 6); + smask_data_ptr[2*i] = image_data_ptr[8*i+6]; + smask_data_ptr[2*i+1] = image_data_ptr[8*i+7]; + } + *rowbytes_ptr = 6*width*sizeof(png_byte); + } break; case PNG_COLOR_TYPE_GRAY_ALPHA: + if (bpc == 8) { for (i = 0; i < width*height; i++) { image_data_ptr[i] = image_data_ptr[2*i]; smask_data_ptr[i] = image_data_ptr[2*i+1]; } *rowbytes_ptr = width*sizeof(png_byte); + } else { + for (i = 0; i < width*height; i++) { + image_data_ptr[2*i] = image_data_ptr[4*i]; + image_data_ptr[2*i+1] = image_data_ptr[4*i+1]; + smask_data_ptr[2*i] = image_data_ptr[4*i+2]; + smask_data_ptr[2*i+1] = image_data_ptr[4*i+3]; + } + *rowbytes_ptr = 2*width*sizeof(png_byte); + } break; default: WARN("You found a bug in pngimage.c!"); @@ -1047,7 +1059,7 @@ strip_soft_mask (png_structp png_ptr, png_infop info_ptr, return NULL; } - pdf_add_stream(smask, smask_data_ptr, width*height); + pdf_add_stream(smask, smask_data_ptr, (bpc/8)*width*height); RELEASE(smask_data_ptr); return smask; diff --git a/Build/source/texk/dvipdfm-x/unicode.c b/Build/source/texk/dvipdfm-x/unicode.c index 10ecf17384f..a1bb934db6c 100644 --- a/Build/source/texk/dvipdfm-x/unicode.c +++ b/Build/source/texk/dvipdfm-x/unicode.c @@ -103,3 +103,44 @@ UC_is_valid (long ucv) return 1; } +int32_t +UC_UTF8_decode_char (const unsigned char **pp, const unsigned char *endptr) +{ + const unsigned char *p = *pp; + int32_t ucv; + unsigned char c = *p++; + int nbytes; + + if (c <= 0x7f) { + ucv = c; + nbytes = 0; + } else if ((c & 0xe0) == 0xc0) { /* 110x xxxx */ + ucv = c & 31; + nbytes = 1; + } else if ((c & 0xf0) == 0xe0) { /* 1110 xxxx */ + ucv = c & 0x0f; + nbytes = 2; + } else if ((c & 0xf8) == 0xf0) { /* 1111 0xxx */ + ucv = c & 0x07; + nbytes = 3; + } else if ((c & 0xfc) == 0xf8) { /* 1111 10xx */ + ucv = c & 0x03; + nbytes = 4; + } else if ((c & 0xfe) == 0xfc) { /* 1111 110x */ + ucv = c & 0x01; + nbytes = 5; + } else { + return -1; + } + if (p + nbytes > endptr) + return -1; + while (nbytes-- > 0) { + c = *p++; + if ((c & 0xc0) != 0x80) + return -1; + ucv = (ucv << 6) | (c & 0x3f); + } + + *pp = p; + return ucv; +} diff --git a/Build/source/texk/dvipdfm-x/unicode.h b/Build/source/texk/dvipdfm-x/unicode.h index a4b98cb3616..36c7b61a977 100644 --- a/Build/source/texk/dvipdfm-x/unicode.h +++ b/Build/source/texk/dvipdfm-x/unicode.h @@ -23,9 +23,11 @@ #ifndef _UNICODE_H_ #define _UNICODE_H_ +#include <inttypes.h> + extern void UC_set_verbose (void); extern int UC_sput_UTF16BE (long ucv, unsigned char **dstpp, unsigned char *endptr); extern int UC_is_valid (long ucv); - +extern int32_t UC_UTF8_decode_char(const unsigned char **pp, const unsigned char *endptr); #endif /* _UNICODE_H_ */ |