1 /* Declarations of functions and data types used for MD4 sum
3 Copyright (C) 2000-2001, 2003, 2005, 2008-2016 Free Software Foundation,
6 This program is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by the
8 Free Software Foundation; either version 2, or (at your option) any
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>. */
29 # define MD4_DIGEST_SIZE 16
31 /* Structure to save state of computation between the single steps. */
45 /* Initialize structure containing state of computation. */
46 extern void md4_init_ctx (struct md4_ctx *ctx);
48 /* Starting with the result of former calls of this function (or the
49 initialization function update the context for the next LEN bytes
51 It is necessary that LEN is a multiple of 64!!! */
52 extern void md4_process_block (const void *buffer, size_t len,
55 /* Starting with the result of former calls of this function (or the
56 initialization function update the context for the next LEN bytes
58 It is NOT required that LEN is a multiple of 64. */
59 extern void md4_process_bytes (const void *buffer, size_t len,
62 /* Process the remaining bytes in the buffer and put result from CTX
63 in first 16 bytes following RESBUF. The result is always in little
64 endian byte order, so that a byte-wise output yields to the wanted
65 ASCII representation of the message digest. */
66 extern void *md4_finish_ctx (struct md4_ctx *ctx, void *resbuf);
69 /* Put result from CTX in first 16 bytes following RESBUF. The result is
70 always in little endian byte order, so that a byte-wise output yields
71 to the wanted ASCII representation of the message digest. */
72 extern void *md4_read_ctx (const struct md4_ctx *ctx, void *resbuf);
75 /* Compute MD4 message digest for bytes read from STREAM. The
76 resulting message digest number will be written into the 16 bytes
77 beginning at RESBLOCK. */
78 extern int md4_stream (FILE * stream, void *resblock);
80 /* Compute MD4 message digest for LEN bytes beginning at BUFFER. The
81 result is always in little endian byte order, so that a byte-wise
82 output yields to the wanted ASCII representation of the message
84 extern void *md4_buffer (const char *buffer, size_t len, void *resblock);