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200 lines
6.3 KiB
C
200 lines
6.3 KiB
C
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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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* $Id: sha2.h,v 1.3 2005/05/13 18:52:06 harbourn Exp $
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*/
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#ifndef __SHA2_H__
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#define __SHA2_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Import u_intXX_t size_t type definitions from system headers. You
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* may need to change this, or define these things yourself in this
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* file.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#ifdef SHA2_USE_INTTYPES_H
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#include <inttypes.h>
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#endif /* SHA2_USE_INTTYPES_H */
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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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/* NOTE: If your architecture does not define either u_intXX_t types or
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* uintXX_t (from inttypes.h), you may need to define things by hand
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* for your system:
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*/
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#if 0
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typedef unsigned char u_int8_t; /* 1-byte (8-bits) */
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typedef unsigned int u_int32_t; /* 4-bytes (32-bits) */
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typedef unsigned long long u_int64_t; /* 8-bytes (64-bits) */
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#endif
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/*
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* Most BSD systems already define u_intXX_t types, as does Linux.
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* Some systems, however, like Compaq's Tru64 Unix instead can use
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* uintXX_t types defined by very recent ANSI C standards and included
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* in the file:
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*
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* #include <inttypes.h>
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*
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* If you choose to use <inttypes.h> then please define:
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*
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* #define SHA2_USE_INTTYPES_H
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*
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* Or on the command line during compile:
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*
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* cc -DSHA2_USE_INTTYPES_H ...
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*/
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#ifdef SHA2_USE_INTTYPES_H
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typedef struct _SHA256_CTX {
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uint32_t state[8];
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uint64_t bitcount;
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uint8_t buffer[SHA256_BLOCK_LENGTH];
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} SHA256_CTX;
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typedef struct _SHA512_CTX {
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uint64_t state[8];
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uint64_t bitcount[2];
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uint8_t buffer[SHA512_BLOCK_LENGTH];
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} SHA512_CTX;
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#else /* SHA2_USE_INTTYPES_H */
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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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#endif /* SHA2_USE_INTTYPES_H */
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typedef SHA512_CTX SHA384_CTX;
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/*** SHA-256/384/512 Function Prototypes ******************************/
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#ifndef NOPROTO
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#ifdef SHA2_USE_INTTYPES_H
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void SHA256_Init(SHA256_CTX *);
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void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
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void SHA256_Final(SHA256_CTX *, uint8_t[SHA256_DIGEST_LENGTH]);
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char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
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char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
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void SHA384_Init(SHA384_CTX*);
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void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
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void SHA384_Final(SHA384_CTX*, uint8_t[SHA384_DIGEST_LENGTH]);
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char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
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char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
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void SHA512_Init(SHA512_CTX*);
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void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
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void SHA512_Final(SHA512_CTX*, uint8_t[SHA512_DIGEST_LENGTH]);
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char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
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char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
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#else /* SHA2_USE_INTTYPES_H */
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void SHA256_Init(SHA256_CTX *);
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void SHA256_Update(SHA256_CTX*, const u_int8_t*, size_t);
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void SHA256_Final(SHA256_CTX*, u_int8_t[SHA256_DIGEST_LENGTH]);
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char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
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char* SHA256_Data(const u_int8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
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void SHA384_Init(SHA384_CTX*);
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void SHA384_Update(SHA384_CTX*, const u_int8_t*, size_t);
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void SHA384_Final(SHA384_CTX*, u_int8_t[SHA384_DIGEST_LENGTH]);
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char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
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char* SHA384_Data(const u_int8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
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void SHA512_Init(SHA512_CTX*);
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void SHA512_Update(SHA512_CTX*, const u_int8_t*, size_t);
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void SHA512_Final(SHA512_CTX*, u_int8_t[SHA512_DIGEST_LENGTH]);
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char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
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char* SHA512_Data(const u_int8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
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#endif /* SHA2_USE_INTTYPES_H */
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#else /* NOPROTO */
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void SHA256_Init();
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void SHA256_Update();
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void SHA256_Final();
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char* SHA256_End();
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char* SHA256_Data();
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void SHA384_Init();
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void SHA384_Update();
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void SHA384_Final();
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char* SHA384_End();
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char* SHA384_Data();
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void SHA512_Init();
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void SHA512_Update();
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void SHA512_Final();
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char* SHA512_End();
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char* SHA512_Data();
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#endif /* NOPROTO */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __SHA2_H__ */
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