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-rw-r--r--Build/source/texk/dvipdf-x/dpxcrypt.c369
1 files changed, 0 insertions, 369 deletions
diff --git a/Build/source/texk/dvipdf-x/dpxcrypt.c b/Build/source/texk/dvipdf-x/dpxcrypt.c
deleted file mode 100644
index 379ebe5ead2..00000000000
--- a/Build/source/texk/dvipdf-x/dpxcrypt.c
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@@ -1,369 +0,0 @@
-/*
-
- This is DVIPDFMx, an eXtended version of DVIPDFM by Mark A. Wicks.
-
- Copyright (C) 2003-2012 by Jin-Hwan Cho and Shunsaku Hirata,
- the dvipdfmx project team.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#include <string.h>
-
-#include "dpxcrypt.h"
-
-static void _gcry_burn_stack (int bytes)
-{
- char buf[64];
-
- memset(buf, 0, sizeof buf);
- bytes -= sizeof buf;
- if (bytes > 0) _gcry_burn_stack(bytes);
-}
-
-/* Rotate a 32 bit integer by n bytes */
-#define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
-
-/*
- * The following codes for MD5 Message-Digest Algorithm were modified
- * by Jin-Hwan Cho on August 5, 2003 based on libgrypt-1.1.42.
- *
- * Copyright (C) 1995,1996,1998,1999,2001,2002,2003 Free Software Foundation, Inc.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
- * According to the definition of MD5 in RFC 1321 from April 1992.
- * NOTE: This is *not* the same file as the one from glibc.
- * Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
- * heavily modified for GnuPG by Werner Koch <wk@gnupg.org>
- */
-
-void MD5_init (MD5_CONTEXT *ctx)
-{
- ctx->A = 0x67452301;
- ctx->B = 0xefcdab89;
- ctx->C = 0x98badcfe;
- ctx->D = 0x10325476;
-
- ctx->nblocks = 0;
- ctx->count = 0;
-}
-
-/* These are the four functions used in the four steps of the MD5 algorithm
- * and defined in the RFC 1321. The first function is a little bit optimized
- * (as found in Colin Plumbs public domain implementation). */
-/* #define FF(b, c, d) ((b & c) | (~b & d)) */
-#define FF(b, c, d) (d ^ (b & (c ^ d)))
-#define FG(b, c, d) FF(d, b, c)
-#define FH(b, c, d) (b ^ c ^ d)
-#define FI(b, c, d) (c ^ (b | ~d))
-
-/* transform n*64 bytes */
-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 *cwp = correct_words;
-
-#ifdef WORDS_BIGENDIAN
- { int i; const unsigned char *p1; unsigned char *p2;
- for (i = 0, p1 = data, p2 = (unsigned char *)correct_words; i < 16; i++, p2 += 4 ) {
- p2[3] = *p1++; p2[2] = *p1++; p2[1] = *p1++; p2[0] = *p1++;
- }
- }
-#else
- memcpy(correct_words, data, sizeof(uint32_t) * 16);
-#endif
-
-#define OP(a, b, c, d, s, T) \
- do { a += FF(b, c, d) + (*cwp++) + T; a = rol(a, s); a += b; } while (0)
-
- /* Before we start, one word about the strange constants.
- * They are defined in RFC 1321 as
- *
- * T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
- */
-
- /* Round 1. */
- OP(A, B, C, D, 7, 0xd76aa478);
- OP(D, A, B, C, 12, 0xe8c7b756);
- OP(C, D, A, B, 17, 0x242070db);
- OP(B, C, D, A, 22, 0xc1bdceee);
- OP(A, B, C, D, 7, 0xf57c0faf);
- OP(D, A, B, C, 12, 0x4787c62a);
- OP(C, D, A, B, 17, 0xa8304613);
- OP(B, C, D, A, 22, 0xfd469501);
- OP(A, B, C, D, 7, 0x698098d8);
- OP(D, A, B, C, 12, 0x8b44f7af);
- OP(C, D, A, B, 17, 0xffff5bb1);
- OP(B, C, D, A, 22, 0x895cd7be);
- OP(A, B, C, D, 7, 0x6b901122);
- OP(D, A, B, C, 12, 0xfd987193);
- OP(C, D, A, B, 17, 0xa679438e);
- OP(B, C, D, A, 22, 0x49b40821);
-
-#undef OP
-#define OP(f, a, b, c, d, k, s, T) \
- do { a += f(b, c, d) + correct_words[k] + T; a = rol(a, s); a += b; } while (0)
-
- /* Round 2. */
- OP(FG, A, B, C, D, 1, 5, 0xf61e2562);
- OP(FG, D, A, B, C, 6, 9, 0xc040b340);
- OP(FG, C, D, A, B, 11, 14, 0x265e5a51);
- OP(FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
- OP(FG, A, B, C, D, 5, 5, 0xd62f105d);
- OP(FG, D, A, B, C, 10, 9, 0x02441453);
- OP(FG, C, D, A, B, 15, 14, 0xd8a1e681);
- OP(FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
- OP(FG, A, B, C, D, 9, 5, 0x21e1cde6);
- OP(FG, D, A, B, C, 14, 9, 0xc33707d6);
- OP(FG, C, D, A, B, 3, 14, 0xf4d50d87);
- OP(FG, B, C, D, A, 8, 20, 0x455a14ed);
- OP(FG, A, B, C, D, 13, 5, 0xa9e3e905);
- OP(FG, D, A, B, C, 2, 9, 0xfcefa3f8);
- OP(FG, C, D, A, B, 7, 14, 0x676f02d9);
- OP(FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
-
- /* Round 3. */
- OP(FH, A, B, C, D, 5, 4, 0xfffa3942);
- OP(FH, D, A, B, C, 8, 11, 0x8771f681);
- OP(FH, C, D, A, B, 11, 16, 0x6d9d6122);
- OP(FH, B, C, D, A, 14, 23, 0xfde5380c);
- OP(FH, A, B, C, D, 1, 4, 0xa4beea44);
- OP(FH, D, A, B, C, 4, 11, 0x4bdecfa9);
- OP(FH, C, D, A, B, 7, 16, 0xf6bb4b60);
- OP(FH, B, C, D, A, 10, 23, 0xbebfbc70);
- OP(FH, A, B, C, D, 13, 4, 0x289b7ec6);
- OP(FH, D, A, B, C, 0, 11, 0xeaa127fa);
- OP(FH, C, D, A, B, 3, 16, 0xd4ef3085);
- OP(FH, B, C, D, A, 6, 23, 0x04881d05);
- OP(FH, A, B, C, D, 9, 4, 0xd9d4d039);
- OP(FH, D, A, B, C, 12, 11, 0xe6db99e5);
- OP(FH, C, D, A, B, 15, 16, 0x1fa27cf8);
- OP(FH, B, C, D, A, 2, 23, 0xc4ac5665);
-
- /* Round 4. */
- OP(FI, A, B, C, D, 0, 6, 0xf4292244);
- OP(FI, D, A, B, C, 7, 10, 0x432aff97);
- OP(FI, C, D, A, B, 14, 15, 0xab9423a7);
- OP(FI, B, C, D, A, 5, 21, 0xfc93a039);
- OP(FI, A, B, C, D, 12, 6, 0x655b59c3);
- OP(FI, D, A, B, C, 3, 10, 0x8f0ccc92);
- OP(FI, C, D, A, B, 10, 15, 0xffeff47d);
- OP(FI, B, C, D, A, 1, 21, 0x85845dd1);
- OP(FI, A, B, C, D, 8, 6, 0x6fa87e4f);
- OP(FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
- OP(FI, C, D, A, B, 6, 15, 0xa3014314);
- OP(FI, B, C, D, A, 13, 21, 0x4e0811a1);
- OP(FI, A, B, C, D, 4, 6, 0xf7537e82);
- OP(FI, D, A, B, C, 11, 10, 0xbd3af235);
- OP(FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
- OP(FI, B, C, D, A, 9, 21, 0xeb86d391);
-
- /* Put checksum in context given as argument. */
- ctx->A += A;
- ctx->B += B;
- ctx->C += C;
- ctx->D += D;
-}
-
-/* The routine updates the message-digest context to
- * account for the presence of each of the characters inBuf[0..inLen-1]
- * in the message whose digest is being computed. */
-void MD5_write (MD5_CONTEXT *hd, const unsigned char *inbuf, unsigned long inlen)
-{
- if (hd->count == 64) { /* flush the buffer */
- transform(hd, hd->buf);
- _gcry_burn_stack(80+6*sizeof(void*));
- hd->count = 0;
- hd->nblocks++;
- }
- if (!inbuf) return;
- if (hd->count) {
- for (; inlen && hd->count < 64; inlen--)
- hd->buf[hd->count++] = *inbuf++;
- MD5_write(hd, NULL, 0);
- if (!inlen) return;
- }
- _gcry_burn_stack(80+6*sizeof(void*));
-
- while (inlen >= 64) {
- 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 final terminates the message-digest computation and
- * ends with the desired message digest in mdContext->digest[0...15].
- * The handle is prepared for a new MD5 cycle.
- * Returns 16 bytes representing the digest. */
-
-void MD5_final (unsigned char *outbuf, MD5_CONTEXT *hd)
-{
- unsigned long t, msb, lsb;
- unsigned char *p;
-
- MD5_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;
- MD5_write(hd, NULL, 0); /* flush */
- memset(hd->buf, 0, 56); /* fill next block with zeroes */
- }
- /* append the 64 bit count */
- hd->buf[56] = lsb;
- hd->buf[57] = lsb >> 8;
- hd->buf[58] = lsb >> 16;
- hd->buf[59] = lsb >> 24;
- hd->buf[60] = msb;
- hd->buf[61] = msb >> 8;
- hd->buf[62] = msb >> 16;
- hd->buf[63] = msb >> 24;
- transform(hd, hd->buf);
- _gcry_burn_stack(80+6*sizeof(void*));
-
- p = outbuf; /* p = hd->buf; */
-#ifdef WORDS_BIGENDIAN
-#define X(a) do { *p++ = hd->a; *p++ = hd->a >> 8; \
- *p++ = hd->a >> 16; *p++ = hd->a >> 24; } while (0)
-#else /* little endian */
-#define X(a) do { *(uint32_t *)p = (*hd).a ; p += sizeof(uint32_t); } while (0)
-#endif
- X(A);
- X(B);
- X(C);
- X(D);
-#undef X
-}
-
-/*
- * The following codes for the arcfour stream cipher were modified
- * by Jin-Hwan Cho on August 5, 2003 based on libgrypt-1.1.42.
- *
- * Copyright (C) 2000,2001,2002,2003 Free Software Foundation, Inc.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
- * According to the definition of MD5 in RFC 1321 from April 1992.
- * NOTE: This is *not* the same file as the one from glibc.
- * Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
- * 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)
-{
- register int i = ctx->idx_i;
- register int j = ctx->idx_j;
- register unsigned char *sbox = ctx->sbox;
- register int t;
-
- while (len--) {
- i++;
- i = i & 255; /* and seems to be faster than mod */
- j += sbox[i];
- j &= 255;
- t = sbox[i]; sbox[i] = sbox[j]; sbox[j] = t;
- *outbuf++ = *inbuf++ ^ sbox[(sbox[i] + sbox[j]) & 255];
- }
-
- ctx->idx_i = i;
- ctx->idx_j = j;
-}
-
-void ARC4 (ARC4_KEY *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)
-{
- int i, j;
- unsigned char karr[256];
-
- ctx->idx_i = ctx->idx_j = 0;
- for (i = 0; i < 256; i++) ctx->sbox[i] = i;
- for (i = 0; i < 256; i++) karr[i] = key[i%keylen];
- for (i = j = 0; i < 256; i++) {
- int t;
- j = (j + ctx->sbox[i] + karr[i]) % 256;
- t = ctx->sbox[i];
- ctx->sbox[i] = ctx->sbox[j];
- ctx->sbox[j] = t;
- }
- memset(karr, 0, 256);
-}
-
-void ARC4_set_key (ARC4_KEY *ctx, unsigned int keylen, const unsigned char *key)
-{
- do_arcfour_setkey(ctx, key, keylen);
- _gcry_burn_stack(300);
-}
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