/* $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 /*** 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 *******************************/ 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; typedef SHA512_CTX SHA384_CTX; #include <sys/cdefs.h> __BEGIN_DECLS void SHA256_Init(SHA256_CTX *); void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]); void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t) __attribute__((__bounded__(__string__,2,3))); void SHA256_Pad(SHA256_CTX *); void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *) __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH))); char *SHA256_End(SHA256_CTX *, char *) __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); char *SHA256_File(const char *, char *) __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); char *SHA256_FileChunk(const char *, char *, off_t, off_t) __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH))); char *SHA256_Data(const u_int8_t *, size_t, char *) __attribute__((__bounded__(__string__,1,2))) __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH))); void SHA384_Init(SHA384_CTX *); void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]); void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t) __attribute__((__bounded__(__string__,2,3))); void SHA384_Pad(SHA384_CTX *); void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *) __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH))); char *SHA384_End(SHA384_CTX *, char *) __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); char *SHA384_File(const char *, char *) __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); char *SHA384_FileChunk(const char *, char *, off_t, off_t) __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH))); char *SHA384_Data(const u_int8_t *, size_t, char *) __attribute__((__bounded__(__string__,1,2))) __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH))); void SHA512_Init(SHA512_CTX *); void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]); void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t) __attribute__((__bounded__(__string__,2,3))); void SHA512_Pad(SHA512_CTX *); void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *) __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH))); char *SHA512_End(SHA512_CTX *, char *) __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); char *SHA512_File(const char *, char *) __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); char *SHA512_FileChunk(const char *, char *, off_t, off_t) __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH))); char *SHA512_Data(const u_int8_t *, size_t, char *) __attribute__((__bounded__(__string__,1,2))) __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH))); __END_DECLS #endif /* _SHA2_H */