/* sha2 implementation by Aaron D. Gifford (http://www.aarongifford.com) */ #ifndef UTIL_SHA_H #define UTIL_SHA_H #include #include #include "utildecl.h" /* begin of sha2.h */ /* * FILE: sha2.h * AUTHOR: Aaron D. Gifford - http://www.aarongifford.com/ * * Copyright (c) 2000-2001, Aaron D. Gifford * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the copyright holder nor the names of contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $ */ /*** SHA-256/384/512 Various Length Definitions ***********************/ #define SHA256_BLOCK_LENGTH 64 #define SHA256_DIGEST_LENGTH 32 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) #define SHA384_BLOCK_LENGTH 128 #define SHA384_DIGEST_LENGTH 48 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) #define SHA512_BLOCK_LENGTH 128 #define SHA512_DIGEST_LENGTH 64 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) typedef struct _SHA256_CTX { uint32_t state[8]; uint64_t bitcount; union { uint8_t buffer[SHA256_BLOCK_LENGTH]; uint64_t buffer64[SHA256_BLOCK_LENGTH / sizeof(uint64_t)]; // to avoid warnings about violating aliasing rules }; } SHA256_CTX; typedef struct _SHA512_CTX { uint64_t state[8]; uint64_t bitcount[2]; union { uint8_t buffer[SHA512_BLOCK_LENGTH]; uint64_t buffer64[SHA512_BLOCK_LENGTH / sizeof(uint64_t)]; }; } SHA512_CTX; typedef SHA512_CTX SHA384_CTX; /*** SHA-256/384/512 Function Prototypes ******************************/ /* void SHA256_Init(SHA256_CTX *); void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t); void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); void SHA384_Init(SHA384_CTX*); void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t); void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); void SHA512_Init(SHA512_CTX*); void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t); void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); */ /* end of sha2.h */ #define sha256_state SHA256_CTX #define sha384_state SHA384_CTX #define sha512_state SHA512_CTX UTILAPI void sha256_init (sha256_state *state); UTILAPI void sha384_init (sha384_state *state); UTILAPI void sha512_init (sha512_state *state); UTILAPI void sha256_add (sha256_state *state, const void *data, size_t size); UTILAPI void sha384_add (sha384_state *state, const void *data, size_t size); UTILAPI void sha512_add (sha512_state *state, const void *data, size_t size); UTILAPI void sha256_put (sha256_state *state, uint8_t digest[SHA256_DIGEST_LENGTH]); UTILAPI void sha384_put (sha384_state *state, uint8_t digest[SHA384_DIGEST_LENGTH]); UTILAPI void sha512_put (sha512_state *state, uint8_t digest[SHA512_DIGEST_LENGTH]); UTILAPI void sha256 (const void *data, size_t size, uint8_t digest[SHA256_DIGEST_LENGTH]); UTILAPI void sha384 (const void *data, size_t size, uint8_t digest[SHA384_DIGEST_LENGTH]); UTILAPI void sha512 (const void *data, size_t size, uint8_t digest[SHA512_DIGEST_LENGTH]); UTILAPI void sha256init (void); UTILAPI void sha384init (void); UTILAPI void sha512init (void); UTILAPI void sha256add (const void *data, size_t size); UTILAPI void sha384add (const void *data, size_t size); UTILAPI void sha512add (const void *data, size_t size); UTILAPI void sha256put (uint8_t digest[SHA256_DIGEST_LENGTH]); UTILAPI void sha384put (uint8_t digest[SHA384_DIGEST_LENGTH]); UTILAPI void sha512put (uint8_t digest[SHA512_DIGEST_LENGTH]); #endif