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Diffstat (limited to 'src/include/md5.h')
| -rw-r--r-- | src/include/md5.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/include/md5.h b/src/include/md5.h new file mode 100644 index 0000000..b7d571a --- /dev/null +++ b/src/include/md5.h @@ -0,0 +1,123 @@ +/** + * $Id$ + * + * @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 */ |