67 lines
2.3 KiB
C
Executable File
67 lines
2.3 KiB
C
Executable File
/* hmac.h -- hashed message authentication codes
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Copyright (C) 2005, 2009-2024 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Simon Josefsson. */
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#ifndef HMAC_H
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#define HMAC_H 1
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Compute Hashed Message Authentication Code with MD5, as described
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in RFC 2104, over BUFFER data of BUFLEN bytes using the KEY of
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KEYLEN bytes, writing the output to pre-allocated 16 byte minimum
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RESBUF buffer. Return 0 on success. */
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int
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hmac_md5 (const void *key, size_t keylen,
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const void *buffer, size_t buflen, void *restrict resbuf);
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/* Compute Hashed Message Authentication Code with SHA-1, over BUFFER
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data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the
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output to pre-allocated 20 byte minimum RESBUF buffer. Return 0 on
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success. */
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int
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hmac_sha1 (const void *key, size_t keylen,
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const void *in, size_t inlen, void *restrict resbuf);
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/* Compute Hashed Message Authentication Code with SHA-256, over BUFFER
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data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the
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output to pre-allocated 32 byte minimum RESBUF buffer. Return 0 on
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success. */
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int
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hmac_sha256 (const void *key, size_t keylen,
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const void *in, size_t inlen, void *restrict resbuf);
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/* Compute Hashed Message Authentication Code with SHA-512, over BUFFER
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data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the
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output to pre-allocated 64 byte minimum RESBUF buffer. Return 0 on
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success. */
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int
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hmac_sha512 (const void *key, size_t keylen,
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const void *in, size_t inlen, void *restrict resbuf);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HMAC_H */
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