/usr/include/sha2.h is in libmd-dev 0.0.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /* $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
#include <sys/cdefs.h>
#include <sys/types.h>
#include <stdint.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 Structure *******************************/
typedef struct _SHA2_CTX {
union {
uint32_t st32[8];
uint64_t st64[8];
} state;
uint64_t bitcount[2];
uint8_t buffer[SHA512_BLOCK_LENGTH];
} SHA2_CTX;
__BEGIN_DECLS
void SHA256Init(SHA2_CTX *);
void SHA256Transform(uint32_t state[8], const uint8_t [SHA256_BLOCK_LENGTH]);
void SHA256Update(SHA2_CTX *, const uint8_t *, size_t);
void SHA256Pad(SHA2_CTX *);
void SHA256Final(uint8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *);
char *SHA256End(SHA2_CTX *, char *);
char *SHA256File(const char *, char *);
char *SHA256FileChunk(const char *, char *, off_t, off_t);
char *SHA256Data(const uint8_t *, size_t, char *);
void SHA384Init(SHA2_CTX *);
void SHA384Transform(uint64_t state[8], const uint8_t [SHA384_BLOCK_LENGTH]);
void SHA384Update(SHA2_CTX *, const uint8_t *, size_t);
void SHA384Pad(SHA2_CTX *);
void SHA384Final(uint8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *);
char *SHA384End(SHA2_CTX *, char *);
char *SHA384File(const char *, char *);
char *SHA384FileChunk(const char *, char *, off_t, off_t);
char *SHA384Data(const uint8_t *, size_t, char *);
void SHA512Init(SHA2_CTX *);
void SHA512Transform(uint64_t state[8], const uint8_t [SHA512_BLOCK_LENGTH]);
void SHA512Update(SHA2_CTX *, const uint8_t *, size_t);
void SHA512Pad(SHA2_CTX *);
void SHA512Final(uint8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *);
char *SHA512End(SHA2_CTX *, char *);
char *SHA512File(const char *, char *);
char *SHA512FileChunk(const char *, char *, off_t, off_t);
char *SHA512Data(const uint8_t *, size_t, char *);
__END_DECLS
#endif /* _SHA2_H */
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