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/**
* $Id$
*
* @note license is LGPL, but largely derived from a public domain source.
*
* @file md5.h
* @brief Structures and prototypes for md5.
*/
#ifndef _FR_MD5_H
#define _FR_MD5_H
RCSIDH(md5_h, "$Id$")
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
# include <string.h>
#ifdef WITH_FIPS
#undef HAVE_OPENSSL_MD5_H
#endif
#ifdef HAVE_OPENSSL_MD5_H
# include <openssl/md5.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MD5_DIGEST_LENGTH
# define MD5_DIGEST_LENGTH 16
#endif
#ifndef HAVE_OPENSSL_MD5_H
/*
* The MD5 code used here and in md5.c was originally retrieved from:
* http://www.openbsd.org/cgi-bin/cvsweb/~checkout~/src/sys/crypto/md5.h?rev=1.1
*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*/
# define MD5_BLOCK_LENGTH 64
typedef struct FR_MD5Context {
uint32_t state[4]; //!< State.
uint32_t count[2]; //!< Number of bits, mod 2^64.
uint8_t buffer[MD5_BLOCK_LENGTH]; //!< Input buffer.
} FR_MD5_CTX;
void fr_md5_init(FR_MD5_CTX *ctx);
void fr_md5_update(FR_MD5_CTX *ctx, uint8_t const *in, size_t inlen)
CC_BOUNDED(__string__, 2, 3);
void fr_md5_final(uint8_t out[MD5_DIGEST_LENGTH], FR_MD5_CTX *ctx)
CC_BOUNDED(__minbytes__, 1, MD5_DIGEST_LENGTH);
void fr_md5_transform(uint32_t state[4], uint8_t const block[MD5_BLOCK_LENGTH])
CC_BOUNDED(__size__, 1, 4, 4)
CC_BOUNDED(__minbytes__, 2, MD5_BLOCK_LENGTH);
# define fr_md5_destroy(_x)
# define fr_md5_copy(_dst, _src) _dst = _src
#else /* HAVE_OPENSSL_MD5_H */
#if OPENSSL_VERSION_NUMBER < 0x30000000L
USES_APPLE_DEPRECATED_API
# define FR_MD5_CTX MD5_CTX
# define fr_md5_init MD5_Init
# define fr_md5_update MD5_Update
# define fr_md5_final MD5_Final
# define fr_md5_transform MD5_Transform
# define fr_md5_copy(_dst, _src) _dst = _src
# define fr_md5_destroy(_x)
#else
#include <openssl/evp.h>
/*
* Wrappers for OpenSSL3, so we don't have to butcher the rest of
* the code too much.
*/
typedef EVP_MD_CTX* FR_MD5_CTX;
# define fr_md5_init(_ctx) \
do { \
*_ctx = EVP_MD_CTX_new(); \
EVP_MD_CTX_set_flags(*_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); \
EVP_DigestInit_ex(*_ctx, EVP_md5(), NULL); \
} while (0)
# define fr_md5_update(_ctx, _str, _len) \
EVP_DigestUpdate(*_ctx, _str, _len)
# define fr_md5_final(_out, _ctx) \
EVP_DigestFinal_ex(*_ctx, _out, NULL)
# define fr_md5_destroy(_ctx) EVP_MD_CTX_destroy(*_ctx)
# define fr_md5_copy(_dst, _src) EVP_MD_CTX_copy_ex(_dst, _src)
#endif /* OPENSSL3 */
#endif /* HAVE_OPENSSL_MD5_H */
/* hmac.c */
void fr_hmac_md5(uint8_t digest[MD5_DIGEST_LENGTH], uint8_t const *text, size_t text_len,
uint8_t const *key, size_t key_len)
CC_BOUNDED(__minbytes__, 1, MD5_DIGEST_LENGTH);
/* md5.c */
void fr_md5_calc(uint8_t *out, uint8_t const *in, size_t inlen);
#ifdef __cplusplus
}
#endif
#endif /* _FR_MD5_H */
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