178064Sume/* $FreeBSD$ */ 278064Sume/* $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 itojun Exp $ */ 378064Sume 478064Sume/* 578064Sume * sha2.h 678064Sume * 778064Sume * Version 1.0.0beta1 878064Sume * 978064Sume * Written by Aaron D. Gifford <me@aarongifford.com> 1078064Sume * 1178064Sume * Copyright 2000 Aaron D. Gifford. All rights reserved. 1278064Sume * 1378064Sume * Redistribution and use in source and binary forms, with or without 1478064Sume * modification, are permitted provided that the following conditions 1578064Sume * are met: 1678064Sume * 1. Redistributions of source code must retain the above copyright 1778064Sume * notice, this list of conditions and the following disclaimer. 1878064Sume * 2. Redistributions in binary form must reproduce the above copyright 1978064Sume * notice, this list of conditions and the following disclaimer in the 2078064Sume * documentation and/or other materials provided with the distribution. 2178064Sume * 3. Neither the name of the copyright holder nor the names of contributors 2278064Sume * may be used to endorse or promote products derived from this software 2378064Sume * without specific prior written permission. 2478064Sume * 2578064Sume * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND 2678064Sume * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2778064Sume * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2878064Sume * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE 2978064Sume * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3078064Sume * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3178064Sume * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3278064Sume * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3378064Sume * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3478064Sume * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3578064Sume * SUCH DAMAGE. 3678064Sume * 3778064Sume */ 3878064Sume 3978064Sume#ifndef __SHA2_H__ 4078064Sume#define __SHA2_H__ 4178064Sume 4278064Sume#ifdef __cplusplus 4378064Sumeextern "C" { 4478064Sume#endif 4578064Sume 4678064Sume 4778064Sume/*** SHA-256/384/512 Various Length Definitions ***********************/ 4878064Sume#define SHA256_BLOCK_LENGTH 64 4978064Sume#define SHA256_DIGEST_LENGTH 32 5078064Sume#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 5178064Sume#define SHA384_BLOCK_LENGTH 128 5278064Sume#define SHA384_DIGEST_LENGTH 48 5378064Sume#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 5478064Sume#define SHA512_BLOCK_LENGTH 128 5578064Sume#define SHA512_DIGEST_LENGTH 64 5678064Sume#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 5778064Sume 5878064Sume 5978064Sume/*** SHA-256/384/512 Context Structures *******************************/ 6078064Sume/* NOTE: If your architecture does not define either u_intXX_t types or 6178064Sume * uintXX_t (from inttypes.h), you may need to define things by hand 6278064Sume * for your system: 6378064Sume */ 6478064Sume#if 0 6578064Sumetypedef unsigned char u_int8_t; /* 1-byte (8-bits) */ 6678064Sumetypedef unsigned int u_int32_t; /* 4-bytes (32-bits) */ 6778064Sumetypedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */ 6878064Sume#endif 6978064Sume/* 7078064Sume * Most BSD systems already define u_intXX_t types, as does Linux. 7178064Sume * Some systems, however, like Compaq's Tru64 Unix instead can use 7278064Sume * uintXX_t types defined by very recent ANSI C standards and included 7378064Sume * in the file: 7478064Sume * 7578064Sume * #include <inttypes.h> 7678064Sume * 7778064Sume * If you choose to use <inttypes.h> then please define: 7878064Sume * 7978064Sume * #define SHA2_USE_INTTYPES_H 8078064Sume * 8178064Sume * Or on the command line during compile: 8278064Sume * 8378064Sume * cc -DSHA2_USE_INTTYPES_H ... 8478064Sume */ 8578064Sume#if 0 /*def SHA2_USE_INTTYPES_H*/ 8678064Sume 8778064Sumetypedef struct _SHA256_CTX { 8878064Sume uint32_t state[8]; 8978064Sume uint64_t bitcount; 9078064Sume uint8_t buffer[SHA256_BLOCK_LENGTH]; 9178064Sume} SHA256_CTX; 9278064Sumetypedef struct _SHA512_CTX { 9378064Sume uint64_t state[8]; 9478064Sume uint64_t bitcount[2]; 9578064Sume uint8_t buffer[SHA512_BLOCK_LENGTH]; 9678064Sume} SHA512_CTX; 9778064Sume 9878064Sume#else /* SHA2_USE_INTTYPES_H */ 9978064Sume 10078064Sumetypedef struct _SHA256_CTX { 10178064Sume u_int32_t state[8]; 10278064Sume u_int64_t bitcount; 10378064Sume u_int8_t buffer[SHA256_BLOCK_LENGTH]; 10478064Sume} SHA256_CTX; 10578064Sumetypedef struct _SHA512_CTX { 10678064Sume u_int64_t state[8]; 10778064Sume u_int64_t bitcount[2]; 10878064Sume u_int8_t buffer[SHA512_BLOCK_LENGTH]; 10978064Sume} SHA512_CTX; 11078064Sume 11178064Sume#endif /* SHA2_USE_INTTYPES_H */ 11278064Sume 11378064Sumetypedef SHA512_CTX SHA384_CTX; 11478064Sume 11578064Sume 11678064Sume/*** SHA-256/384/512 Function Prototypes ******************************/ 11778064Sume 11892756Salfredvoid SHA256_Init(SHA256_CTX *); 11992756Salfredvoid SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t); 12092756Salfredvoid SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*); 12192756Salfredchar* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]); 12292756Salfredchar* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]); 12378064Sume 12492756Salfredvoid SHA384_Init(SHA384_CTX*); 12592756Salfredvoid SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t); 12692756Salfredvoid SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 12792756Salfredchar* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]); 12892756Salfredchar* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]); 12978064Sume 13092756Salfredvoid SHA512_Init(SHA512_CTX*); 13192756Salfredvoid SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t); 13292756Salfredvoid SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 13392756Salfredchar* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]); 13492756Salfredchar* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]); 13578064Sume 13678064Sume#ifdef __cplusplus 13778064Sume} 13878064Sume#endif /* __cplusplus */ 13978064Sume 14078064Sume#endif /* __SHA2_H__ */ 14178064Sume 142