/* * 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 $ */ #ifndef __SHA2_H__ #define __SHA2_H__ /* * Import u_intXX_t size_t type definitions from system headers. You * may need to change this, or define these things yourself in this * file. */ #include <sys/types.h> #ifdef SHA2_USE_INTTYPES_H #include <stddef.h> #include <inttypes.h> #endif /* SHA2_USE_INTTYPES_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 Structures *******************************/ /* NOTE: If your architecture does not define either u_intXX_t types or * uintXX_t (from inttypes.h), you may need to define things by hand * for your system: */ #if 0 typedef unsigned char u_int8_t; /* 1-byte (8-bits) */ typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */ typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */ #endif /* * Most BSD systems already define u_intXX_t types, as does Linux. * Some systems, however, like Compaq's Tru64 Unix instead can use * uintXX_t types defined by very recent ANSI C standards and included * in the file: * * #include <inttypes.h> * * If you choose to use <inttypes.h> then please define: * * #define SHA2_USE_INTTYPES_H * * Or on the command line during compile: * * cc -DSHA2_USE_INTTYPES_H ... */ #ifdef SHA2_USE_INTTYPES_H typedef struct _SHA256_CTX { uint32_t state[8]; uint64_t bitcount; uint8_t buffer[SHA256_BLOCK_LENGTH]; } SHA256_CTX; typedef struct _SHA512_CTX { uint64_t state[8]; uint64_t bitcount[2]; uint8_t buffer[SHA512_BLOCK_LENGTH]; } SHA512_CTX; #else /* SHA2_USE_INTTYPES_H */ typedef struct _SHA256_CTX { u_int32_t state[8]; u_int64_t bitcount; u_int8_t buffer[SHA256_BLOCK_LENGTH]; } SHA256_CTX; typedef struct _SHA512_CTX { u_int64_t state[8]; u_int64_t bitcount[2]; u_int8_t buffer[SHA512_BLOCK_LENGTH]; } SHA512_CTX; #endif /* SHA2_USE_INTTYPES_H */ typedef SHA512_CTX SHA384_CTX; /*** SHA-256/384/512 Function Prototypes ******************************/ #ifndef NOPROTO #ifdef SHA2_USE_INTTYPES_H void SHA256_Init(SHA256_CTX *); void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t); void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); void SHA384_Init(SHA384_CTX*); void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t); void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); void SHA512_Init(SHA512_CTX*); void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t); void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); #else /* SHA2_USE_INTTYPES_H */ 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]); #endif /* SHA2_USE_INTTYPES_H */ #else /* NOPROTO */ void SHA256_Init(); void SHA256_Update(); void SHA256_Final(); char* SHA256_End(); char* SHA256_Data(); void SHA384_Init(); void SHA384_Update(); void SHA384_Final(); char* SHA384_End(); char* SHA384_Data(); void SHA512_Init(); void SHA512_Update(); void SHA512_Final(); char* SHA512_End(); char* SHA512_Data(); #endif /* NOPROTO */ #endif /* __SHA2_H__ */