/* * 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__ #ifdef __cplusplus extern "C" { #endif /* * 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 #include "tinydtls.h" #ifdef IS_WINDOWS #include typedef uint8_t u_int8_t; typedef uint16_t u_int16_t; typedef uint32_t u_int32_t; typedef uint64_t u_int64_t; #endif #ifdef SHA2_USE_INTTYPES_H #include #endif /* SHA2_USE_INTTYPES_H */ /*** SHA-256/384/512 Various Length Definitions ***********************/ #define DTLS_SHA256_BLOCK_LENGTH 64 #define DTLS_SHA256_DIGEST_LENGTH 32 #define DTLS_SHA256_DIGEST_STRING_LENGTH (DTLS_SHA256_DIGEST_LENGTH * 2 + 1) #define DTLS_SHA384_BLOCK_LENGTH 128 #define DTLS_SHA384_DIGEST_LENGTH 48 #define DTLS_SHA384_DIGEST_STRING_LENGTH (DTLS_SHA384_DIGEST_LENGTH * 2 + 1) #define DTLS_SHA512_BLOCK_LENGTH 128 #define DTLS_SHA512_DIGEST_LENGTH 64 #define DTLS_SHA512_DIGEST_STRING_LENGTH (DTLS_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 ... */ #ifdef SHA2_USE_INTTYPES_H typedef struct _dtls_sha256_ctx { uint32_t state[8]; uint64_t bitcount; uint8_t buffer[DTLS_SHA256_BLOCK_LENGTH]; } dtls_sha256_ctx; typedef struct _dtls_sha512_ctx { uint64_t state[8]; uint64_t bitcount[2]; uint8_t buffer[DTLS_SHA512_BLOCK_LENGTH]; } dtls_sha512_ctx; #else /* SHA2_USE_INTTYPES_H */ typedef struct _dtls_sha256_ctx { u_int32_t state[8]; u_int64_t bitcount; u_int8_t buffer[DTLS_SHA256_BLOCK_LENGTH]; } dtls_sha256_ctx; typedef struct _dtls_sha512_ctx { u_int64_t state[8]; u_int64_t bitcount[2]; u_int8_t buffer[DTLS_SHA512_BLOCK_LENGTH]; } dtls_sha512_ctx; #endif /* SHA2_USE_INTTYPES_H */ typedef dtls_sha512_ctx dtls_sha384_ctx; /*** SHA-256/384/512 Function Prototypes ******************************/ #ifndef NOPROTO #ifdef SHA2_USE_INTTYPES_H #ifdef WITH_SHA256 void dtls_sha256_init(dtls_sha256_ctx *); void dtls_sha256_update(dtls_sha256_ctx*, const uint8_t*, size_t); void dtls_sha256_final(uint8_t[DTLS_SHA256_DIGEST_LENGTH], dtls_sha256_ctx*); char* dtls_sha256_end(dtls_sha256_ctx*, char[DTLS_SHA256_DIGEST_STRING_LENGTH]); char* dtls_sha256_data(const uint8_t*, size_t, char[DTLS_SHA256_DIGEST_STRING_LENGTH]); #endif #ifdef WITH_SHA384 void dtls_sha384_init(dtls_sha384_ctx*); void dtls_sha384_update(dtls_sha384_ctx*, const uint8_t*, size_t); void dtls_sha384_final(uint8_t[DTLS_SHA384_DIGEST_LENGTH], dtls_sha384_ctx*); char* dtls_sha384_end(dtls_sha384_ctx*, char[DTLS_SHA384_DIGEST_STRING_LENGTH]); char* dtls_sha384_data(const uint8_t*, size_t, char[DTLS_SHA384_DIGEST_STRING_LENGTH]); #endif #ifdef WITH_SHA512 void dtls_sha512_init(dtls_sha512_ctx*); void dtls_sha512_update(dtls_sha512_ctx*, const uint8_t*, size_t); void dtls_sha512_final(uint8_t[DTLS_SHA512_DIGEST_LENGTH], dtls_sha512_ctx*); char* dtls_sha512_end(dtls_sha512_ctx*, char[DTLS_SHA512_DIGEST_STRING_LENGTH]); char* dtls_sha512_data(const uint8_t*, size_t, char[DTLS_SHA512_DIGEST_STRING_LENGTH]); #endif #else /* SHA2_USE_INTTYPES_H */ #ifdef WITH_SHA256 void dtls_sha256_init(dtls_sha256_ctx *); void dtls_sha256_update(dtls_sha256_ctx*, const u_int8_t*, size_t); void dtls_sha256_final(u_int8_t[DTLS_SHA256_DIGEST_LENGTH], dtls_sha256_ctx*); char* dtls_sha256_end(dtls_sha256_ctx*, char[DTLS_SHA256_DIGEST_STRING_LENGTH]); char* dtls_sha256_data(const u_int8_t*, size_t, char[DTLS_SHA256_DIGEST_STRING_LENGTH]); #endif #ifdef WITH_SHA384 void dtls_sha384_init(dtls_sha384_ctx*); void dtls_sha384_update(dtls_sha384_ctx*, const u_int8_t*, size_t); void dtls_sha384_final(u_int8_t[DTLS_SHA384_DIGEST_LENGTH], dtls_sha384_ctx*); char* dtls_sha384_end(dtls_sha384_ctx*, char[DTLS_SHA384_DIGEST_STRING_LENGTH]); char* dtls_sha384_data(const u_int8_t*, size_t, char[DTLS_SHA384_DIGEST_STRING_LENGTH]); #endif #ifdef WITH_SHA512 void dtls_sha512_init(dtls_sha512_ctx*); void dtls_sha512_update(dtls_sha512_ctx*, const u_int8_t*, size_t); void dtls_sha512_final(u_int8_t[DTLS_SHA512_DIGEST_LENGTH], dtls_sha512_ctx*); char* dtls_sha512_end(dtls_sha512_ctx*, char[DTLS_SHA512_DIGEST_STRING_LENGTH]); char* dtls_sha512_data(const u_int8_t*, size_t, char[DTLS_SHA512_DIGEST_STRING_LENGTH]); #endif #endif /* SHA2_USE_INTTYPES_H */ #else /* NOPROTO */ #ifdef WITH_SHA256 void dtls_sha256_init(); void dtls_sha256_update(); void dtls_sha256_final(); char* dtls_sha256_end(); char* dtls_sha256_data(); #endif #ifdef WITH_SHA384 void dtls_sha384_init(); void dtls_sha384_update(); void dtls_sha384_final(); char* dtls_sha384_end(); char* dtls_sha384_data(); #endif #ifdef WITH_SHA512 void dtls_sha512_init(); void dtls_sha512_update(); void dtls_sha512_final(); char* dtls_sha512_end(); char* dtls_sha512_data(); #endif #endif /* NOPROTO */ #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* __SHA2_H__ */