1 /*- 2 * Copyright 2005 Colin Percival 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #ifndef SHA256_H_ 30 #define SHA256_H_ 31 32 #include <sys/types.h> 33 34 #define SHA256_DIGEST_LENGTH 32 35 36 typedef struct SHA256Context { 37 uint32_t state[8]; 38 uint64_t count; 39 unsigned char buf[64]; 40 } SHA256_CTX; 41 42 void SHA256_Init(SHA256_CTX *); 43 void SHA256_Update(SHA256_CTX *, const void *, size_t); 44 void SHA256_Final(unsigned char [32], SHA256_CTX *); 45 char *SHA256_End(SHA256_CTX *, char *); 46 char *SHA256_File(const char *, char *); 47 char *SHA256_FileChunk(const char *, char *, off_t, off_t); 48 char *SHA256_Data(const void *, unsigned int, char *); 49 50 #endif 51
