/* This is DVIPDFMx, an eXtended version of DVIPDFM by Mark A. Wicks. Copyright (C) 2003-2020 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. */ #ifndef _DPXCRYPT_H_ #define _DPXCRYPT_H_ #include #ifdef HAVE_INTTYPES_H # include #endif #ifdef HAVE_STDINT_H # include #endif /* libgcrypt md5 */ typedef struct { 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 int inlen); void MD5_final(unsigned char *outbuf, MD5_CONTEXT *ctx); typedef struct { uint32_t h0,h1,h2,h3,h4,h5,h6,h7; size_t nblocks; unsigned char buf[64]; int count; } SHA256_CONTEXT; typedef struct { uint64_t 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 int 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 int inlen); void SHA512_final(unsigned char *outbuf, SHA512_CONTEXT *ctx); /* libgcrypt arcfour */ typedef struct { int idx_i, idx_j; unsigned char sbox[256]; } ARC4_CONTEXT; #define AES_BLOCKSIZE 16 void ARC4 (ARC4_CONTEXT *ctx, unsigned int 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 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_ */