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135 lines
5.7 KiB
C
135 lines
5.7 KiB
C
/* OpenBSD: sha2.h,v 1.6 2004/06/22 01:57:30 jfb Exp */
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/*
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* FILE: sha2.h
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* AUTHOR: Aaron D. Gifford <me@aarongifford.com>
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*
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* Copyright (c) 2000-2001, Aaron D. Gifford
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
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*/
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/* OPENBSD ORIGINAL: include/sha2.h */
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#ifndef _SSHSHA2_H
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#define _SSHSHA2_H
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#include "includes.h"
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#ifdef WITH_OPENSSL
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# include <openssl/opensslv.h>
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# if !defined(HAVE_EVP_SHA256) && (OPENSSL_VERSION_NUMBER >= 0x00907000L)
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# define _NEED_SHA2 1
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# endif
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#else
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# define _NEED_SHA2 1
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#endif
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#if defined(_NEED_SHA2) && !defined(HAVE_SHA256_UPDATE)
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/*** SHA-256/384/512 Various Length Definitions ***********************/
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#define SHA256_BLOCK_LENGTH 64
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#define SHA256_DIGEST_LENGTH 32
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#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
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#define SHA384_BLOCK_LENGTH 128
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#define SHA384_DIGEST_LENGTH 48
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#define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1)
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#define SHA512_BLOCK_LENGTH 128
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#define SHA512_DIGEST_LENGTH 64
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#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
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/*** SHA-256/384/512 Context Structures *******************************/
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typedef struct _SHA256_CTX {
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u_int32_t state[8];
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u_int64_t bitcount;
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u_int8_t buffer[SHA256_BLOCK_LENGTH];
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} SHA256_CTX;
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typedef struct _SHA512_CTX {
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u_int64_t state[8];
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u_int64_t bitcount[2];
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u_int8_t buffer[SHA512_BLOCK_LENGTH];
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} SHA512_CTX;
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typedef SHA512_CTX SHA384_CTX;
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void SHA256_Init(SHA256_CTX *);
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void SHA256_Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
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void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA256_Pad(SHA256_CTX *);
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void SHA256_Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA256_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
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char *SHA256_End(SHA256_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
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char *SHA256_File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
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char *SHA256_FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
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char *SHA256_Data(const u_int8_t *, size_t, char *)
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__attribute__((__bounded__(__string__,1,2)))
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__attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));
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void SHA384_Init(SHA384_CTX *);
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void SHA384_Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
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void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA384_Pad(SHA384_CTX *);
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void SHA384_Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA384_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
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char *SHA384_End(SHA384_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
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char *SHA384_File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
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char *SHA384_FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
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char *SHA384_Data(const u_int8_t *, size_t, char *)
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__attribute__((__bounded__(__string__,1,2)))
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__attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));
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void SHA512_Init(SHA512_CTX *);
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void SHA512_Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
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void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA512_Pad(SHA512_CTX *);
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void SHA512_Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA512_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
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char *SHA512_End(SHA512_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
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char *SHA512_File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
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char *SHA512_FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
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char *SHA512_Data(const u_int8_t *, size_t, char *)
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__attribute__((__bounded__(__string__,1,2)))
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__attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));
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#endif /* defined(_NEED_SHA2) && !defined(HAVE_SHA256_UPDATE) */
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#endif /* _SSHSHA2_H */
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