| /*- |
| * Copyright 2005,2007,2009 Colin Percival |
| * 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 CONTRIBUTORS 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. |
| * |
| * $FreeBSD: src/lib/libmd/sha256.h,v 1.2 2006/01/17 15:35:56 phk Exp $ |
| */ |
| |
| #ifndef _SHA256_H_ |
| #define _SHA256_H_ |
| |
| #include <sys/types.h> |
| |
| #include <stdint.h> |
| |
| typedef struct SHA256Context { |
| uint32_t state[8]; |
| uint32_t count[2]; |
| unsigned char buf[64]; |
| } SHA256_CTX; |
| |
| typedef struct HMAC_SHA256Context { |
| SHA256_CTX ictx; |
| SHA256_CTX octx; |
| } HMAC_SHA256_CTX; |
| |
| void SHA256_Init(SHA256_CTX *); |
| void SHA256_Update(SHA256_CTX *, const void *, size_t); |
| void SHA256_Final(unsigned char [32], SHA256_CTX *); |
| void HMAC_SHA256_Init(HMAC_SHA256_CTX *, const void *, size_t); |
| void HMAC_SHA256_Update(HMAC_SHA256_CTX *, const void *, size_t); |
| void HMAC_SHA256_Final(unsigned char [32], HMAC_SHA256_CTX *); |
| |
| /** |
| * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): |
| * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and |
| * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). |
| */ |
| void PBKDF2_SHA256(const uint8_t *, size_t, const uint8_t *, size_t, |
| uint64_t, uint8_t *, size_t); |
| |
| #endif /* !_SHA256_H_ */ |