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| 1 /*- |
| 2 * Copyright 2005,2007,2009 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: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $ |
| 27 */ |
| 28 |
| 29 #ifndef _SHA256_H_ |
| 30 #define _SHA256_H_ |
| 31 |
| 32 #include <sys/types.h> |
| 33 |
| 34 #include <stdint.h> |
| 35 |
| 36 typedef struct SHA256Context { |
| 37 uint32_t state[8]; |
| 38 uint32_t count[2]; |
| 39 unsigned char buf[64]; |
| 40 } SHA256_CTX; |
| 41 |
| 42 typedef struct HMAC_SHA256Context { |
| 43 SHA256_CTX ictx; |
| 44 SHA256_CTX octx; |
| 45 } HMAC_SHA256_CTX; |
| 46 |
| 47 void SHA256_Init(SHA256_CTX *); |
| 48 void SHA256_Update(SHA256_CTX *, const void *, size_t); |
| 49 void SHA256_Final(unsigned char [32], SHA256_CTX *); |
| 50 void HMAC_SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t); |
| 51 void HMAC_SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t); |
| 52 void HMAC_SHA256_Final(unsigned char [32], HMAC_SHA256_CTX *); |
| 53 |
| 54 /** |
| 55 * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): |
| 56 * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and |
| 57 * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). |
| 58 */ |
| 59 void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t, |
| 60 uint64_t, uint8_t *, size_t); |
| 61 |
| 62 #endif /* !_SHA256_H_ */ |
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