From 252601302d45036817546c533743e5918b6b86e8 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 5 May 2024 19:38:31 +0200 Subject: Adding upstream version 1.21.3. Signed-off-by: Daniel Baumann --- lib/md4.h | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 lib/md4.h (limited to 'lib/md4.h') diff --git a/lib/md4.h b/lib/md4.h new file mode 100644 index 0000000..356a0dc --- /dev/null +++ b/lib/md4.h @@ -0,0 +1,93 @@ +/* Declarations of functions and data types used for MD4 sum + library functions. + Copyright (C) 2000-2001, 2003, 2005, 2008-2022 Free Software Foundation, + Inc. + + This file 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. + + This file 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 . */ + +#ifndef MD4_H +# define MD4_H 1 + +# include +# include + +# ifdef __cplusplus +extern "C" { +# endif + +# define MD4_DIGEST_SIZE 16 + +/* Structure to save state of computation between the single steps. */ +struct md4_ctx +{ + uint32_t A; + uint32_t B; + uint32_t C; + uint32_t D; + + uint32_t total[2]; + uint32_t buflen; + uint32_t buffer[32]; +}; + + +/* Initialize structure containing state of computation. */ +extern void md4_init_ctx (struct md4_ctx *ctx); + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is necessary that LEN is a multiple of 64!!! */ +extern void md4_process_block (const void *buffer, size_t len, + struct md4_ctx *ctx); + +/* Starting with the result of former calls of this function (or the + initialization function update the context for the next LEN bytes + starting at BUFFER. + It is NOT required that LEN is a multiple of 64. */ +extern void md4_process_bytes (const void *buffer, size_t len, + struct md4_ctx *ctx); + +/* Process the remaining bytes in the buffer and put result from CTX + in first 16 bytes following RESBUF. The result is always in little + endian byte order, so that a byte-wise output yields to the wanted + ASCII representation of the message digest. */ +extern void *md4_finish_ctx (struct md4_ctx *ctx, void *restrict resbuf); + + +/* Put result from CTX in first 16 bytes following RESBUF. The result is + always in little endian byte order, so that a byte-wise output yields + to the wanted ASCII representation of the message digest. */ +extern void *md4_read_ctx (const struct md4_ctx *ctx, void *restrict resbuf); + + +/* Compute MD4 message digest for LEN bytes beginning at BUFFER. The + result is always in little endian byte order, so that a byte-wise + output yields to the wanted ASCII representation of the message + digest. */ +extern void *md4_buffer (const char *buffer, size_t len, + void *restrict resblock); + + +/* Compute MD4 message digest for bytes read from STREAM. The + resulting message digest number will be written into the 16 bytes + beginning at RESBLOCK. */ +extern int md4_stream (FILE * stream, void *resblock); + + +# ifdef __cplusplus +} +# endif + +#endif -- cgit v1.2.3