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/* $OpenBSD: sha2.h,v 1.6 2004/06/22 01:57:30 jfb Exp $ */ /* * FILE: sha2.h * AUTHOR: Aaron D. Gifford <me@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. * * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $ */ #ifndef _SHA2_H #define _SHA2_H #include <sys/types.h> #include <stdint.h> /*** 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) /*** SHA-256/384/512 Context Structure *******************************/ typedef struct _SHA2_CTX { union { uint32_t st32[8]; uint64_t st64[8]; } state; uint64_t bitcount[2]; uint8_t buffer[SHA512_BLOCK_LENGTH]; } SHA2_CTX; #ifdef __cplusplus extern "C" { #endif void SHA256Init(SHA2_CTX *); void SHA256Transform(uint32_t state[8], const uint8_t [SHA256_BLOCK_LENGTH]); void SHA256Update(SHA2_CTX *, const uint8_t *, size_t); void SHA256Pad(SHA2_CTX *); void SHA256Final(uint8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *); char *SHA256End(SHA2_CTX *, char *); char *SHA256File(const char *, char *); char *SHA256FileChunk(const char *, char *, off_t, off_t); char *SHA256Data(const uint8_t *, size_t, char *); void SHA384Init(SHA2_CTX *); void SHA384Transform(uint64_t state[8], const uint8_t [SHA384_BLOCK_LENGTH]); void SHA384Update(SHA2_CTX *, const uint8_t *, size_t); void SHA384Pad(SHA2_CTX *); void SHA384Final(uint8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *); char *SHA384End(SHA2_CTX *, char *); char *SHA384File(const char *, char *); char *SHA384FileChunk(const char *, char *, off_t, off_t); char *SHA384Data(const uint8_t *, size_t, char *); void SHA512Init(SHA2_CTX *); void SHA512Transform(uint64_t state[8], const uint8_t [SHA512_BLOCK_LENGTH]); void SHA512Update(SHA2_CTX *, const uint8_t *, size_t); void SHA512Pad(SHA2_CTX *); void SHA512Final(uint8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *); char *SHA512End(SHA2_CTX *, char *); char *SHA512File(const char *, char *); char *SHA512FileChunk(const char *, char *, off_t, off_t); char *SHA512Data(const uint8_t *, size_t, char *); #ifdef __cplusplus } #endif #endif /* _SHA2_H */