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Diffstat (limited to '')
| -rw-r--r-- | src/include/md4.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/src/include/md4.h b/src/include/md4.h new file mode 100644 index 0000000..1492bd4 --- /dev/null +++ b/src/include/md4.h @@ -0,0 +1,137 @@ +/** + * $Id$ + * + * @note license is LGPL, but largely derived from a public domain source. + * + * @file md4.h + * @brief Structures and prototypes for md4. + */ + +#ifndef _FR_MD4_H +#define _FR_MD4_H + +RCSIDH(md4_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_MD4_H +#endif + +#ifdef HAVE_OPENSSL_MD4_H +# include <openssl/md4.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef MD4_DIGEST_LENGTH +# define MD4_DIGEST_LENGTH 16 +#endif + +#ifndef HAVE_OPENSSL_MD4_H +/* + * The MD5 code used here and in md4.c was originally retrieved from: + * http://www.openbsd.org/cgi-bin/cvsweb/src/include/md4.h?rev=1.12 + * + * This code implements the MD4 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. + * Todd C. Miller modified the MD5 code to do MD4 based on RFC 1186. + * + * 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 MD4_BLOCK_LENGTH 64 +# define MD4_DIGEST_STRING_LENGTH (MD4_DIGEST_LENGTH * 2 + 1) + +typedef struct FR_MD4Context { + uint32_t state[4]; //!< State. + uint32_t count[2]; //!< Number of bits, mod 2^64. + uint8_t buffer[MD4_BLOCK_LENGTH]; //!< Input buffer. +} FR_MD4_CTX; + +void fr_md4_init(FR_MD4_CTX *ctx); +void fr_md4_update(FR_MD4_CTX *ctx, uint8_t const *in, size_t inlen) + CC_BOUNDED(__string__, 2, 3); +void fr_md4_final(uint8_t out[MD4_DIGEST_LENGTH], FR_MD4_CTX *ctx) + CC_BOUNDED(__minbytes__, 1, MD4_DIGEST_LENGTH); +void fr_md4_transform(uint32_t buf[4], uint8_t const inc[MD4_BLOCK_LENGTH]) + CC_BOUNDED(__size__, 1, 4, 4) + CC_BOUNDED(__minbytes__, 2, MD4_BLOCK_LENGTH); +# define fr_md4_destroy(_x) +#else /* HAVE_OPENSSL_MD4_H */ +#if OPENSSL_VERSION_NUMBER < 0x30000000L +USES_APPLE_DEPRECATED_API +# define FR_MD4_CTX MD4_CTX +# define fr_md4_init MD4_Init +# define fr_md4_update MD4_Update +# define fr_md4_final MD4_Final +# define fr_md4_transform MD4_Transform +# define fr_md4_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 struct FR_MD4_CTX { + EVP_MD_CTX *ctx; + EVP_MD const *md; + unsigned int len; +} FR_MD4_CTX; + +static inline void fr_md4_init(FR_MD4_CTX *ctx) +{ + ctx->ctx = EVP_MD_CTX_new(); +// ctx->md = EVP_MD_fetch(NULL, "MD4", "provider=legacy"); + ctx->md = EVP_md4(); + ctx->len = MD4_DIGEST_LENGTH; + + EVP_MD_CTX_set_flags(ctx->ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); + EVP_DigestInit_ex(ctx->ctx, ctx->md, NULL); +} + +static inline void fr_md4_update(FR_MD4_CTX *ctx, uint8_t const *in, size_t inlen) +{ + EVP_DigestUpdate(ctx->ctx, in, inlen); +} + +static inline void fr_md4_final(uint8_t out[MD4_DIGEST_LENGTH], FR_MD4_CTX *ctx) +{ + EVP_DigestFinal_ex(ctx->ctx, out, &(ctx->len)); +} + +static inline void fr_md4_destroy(FR_MD4_CTX *ctx) +{ + EVP_MD_CTX_destroy(ctx->ctx); +// EVP_MD_free(ctx->md); +} + +#endif /* OPENSSL3 */ +#endif /* HAVE_OPENSSL_MD4_H */ + +/* md4.c */ +void fr_md4_calc(uint8_t out[MD4_DIGEST_LENGTH], uint8_t const *in, size_t inlen); + +#ifdef __cplusplus +} +#endif +#endif /* _FR_MD4_H */ |