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/* $OpenBSD: sha2.h,v 1.10 2016/09/03 17:00:29 tedu 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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#ifndef _SHA2_H
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#define _SHA2_H
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/*** SHA-256/384/512 Various Length Definitions ***********************/
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#define SHA224_BLOCK_LENGTH 64
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#define SHA224_DIGEST_LENGTH 28
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#define SHA224_DIGEST_STRING_LENGTH (SHA224_DIGEST_LENGTH * 2 + 1)
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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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#define SHA512_256_BLOCK_LENGTH 128
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#define SHA512_256_DIGEST_LENGTH 32
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#define SHA512_256_DIGEST_STRING_LENGTH (SHA512_256_DIGEST_LENGTH * 2 + 1)
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/*** SHA-224/256/384/512 Context Structure *******************************/
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typedef struct _SHA2_CTX {
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union {
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u_int32_t st32[8];
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u_int64_t st64[8];
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} state;
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u_int64_t bitcount[2];
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u_int8_t buffer[SHA512_BLOCK_LENGTH];
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} SHA2_CTX;
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__BEGIN_DECLS
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void SHA224Init(SHA2_CTX *);
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void SHA224Transform(u_int32_t state[8], const u_int8_t [SHA224_BLOCK_LENGTH]);
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void SHA224Update(SHA2_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA224Pad(SHA2_CTX *);
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void SHA224Final(u_int8_t [SHA224_DIGEST_LENGTH], SHA2_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA224_DIGEST_LENGTH)));
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char *SHA224End(SHA2_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
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char *SHA224File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
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char *SHA224FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA224_DIGEST_STRING_LENGTH)));
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char *SHA224Data(const u_int8_t *, size_t, char *)
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__attribute__((__bounded__(__string__,1,2)))
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__attribute__((__bounded__(__minbytes__,3,SHA224_DIGEST_STRING_LENGTH)));
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void SHA256Init(SHA2_CTX *);
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void SHA256Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
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void SHA256Update(SHA2_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA256Pad(SHA2_CTX *);
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void SHA256Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
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char *SHA256End(SHA2_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
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char *SHA256File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
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char *SHA256FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
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char *SHA256Data(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 SHA384Init(SHA2_CTX *);
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void SHA384Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
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void SHA384Update(SHA2_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA384Pad(SHA2_CTX *);
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void SHA384Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
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char *SHA384End(SHA2_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
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char *SHA384File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
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char *SHA384FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
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char *SHA384Data(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 SHA512Init(SHA2_CTX *);
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void SHA512Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
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void SHA512Update(SHA2_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA512Pad(SHA2_CTX *);
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void SHA512Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
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char *SHA512End(SHA2_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
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char *SHA512File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
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char *SHA512FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
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char *SHA512Data(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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void SHA512_256Init(SHA2_CTX *);
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void SHA512_256Transform(u_int64_t state[8], const u_int8_t [SHA512_256_BLOCK_LENGTH]);
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void SHA512_256Update(SHA2_CTX *, const u_int8_t *, size_t)
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__attribute__((__bounded__(__string__,2,3)));
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void SHA512_256Pad(SHA2_CTX *);
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void SHA512_256Final(u_int8_t [SHA512_256_DIGEST_LENGTH], SHA2_CTX *)
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__attribute__((__bounded__(__minbytes__,1,SHA512_256_DIGEST_LENGTH)));
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char *SHA512_256End(SHA2_CTX *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
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char *SHA512_256File(const char *, char *)
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__attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
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char *SHA512_256FileChunk(const char *, char *, off_t, off_t)
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__attribute__((__bounded__(__minbytes__,2,SHA512_256_DIGEST_STRING_LENGTH)));
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char *SHA512_256Data(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_256_DIGEST_STRING_LENGTH)));
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__END_DECLS
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#endif /* _SHA2_H */
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