/* $KAME: sha2.h,v 1.1.1.1 2001/08/08 09:56:28 sakane Exp $ */ /* * sha2.h * * Version 1.0.0beta1 * * Written by Aaron D. Gifford * * Copyright 2000 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(S) 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(S) 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. * */ #ifndef __SHA2_H__ #define __SHA2_H__ #ifdef __cplusplus extern "C" { #endif /*** 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 * * If you choose to use then please define: * * #define SHA2_USE_INTTYPES_H * * Or on the command line during compile: * * cc -DSHA2_USE_INTTYPES_H ... */ #if 0 /*def 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 ******************************/ void SHA256_Init __P((SHA256_CTX *)); void SHA256_Update __P((SHA256_CTX*, const u_int8_t*, size_t)); void SHA256_Final __P((u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*)); char* SHA256_End __P((SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH])); char* SHA256_Data __P((const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH])); void SHA384_Init __P((SHA384_CTX*)); void SHA384_Update __P((SHA384_CTX*, const u_int8_t*, size_t)); void SHA384_Final __P((u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*)); char* SHA384_End __P((SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH])); char* SHA384_Data __P((const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH])); void SHA512_Init __P((SHA512_CTX*)); void SHA512_Update __P((SHA512_CTX*, const u_int8_t*, size_t)); void SHA512_Final __P((u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*)); char* SHA512_End __P((SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH])); char* SHA512_Data __P((const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH])); struct env_md_st *EVP_sha2_256 __P((void)); struct env_md_st *EVP_sha2_384 __P((void)); struct env_md_st *EVP_sha2_512 __P((void)); #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __SHA2_H__ */