1 /* 2 * Copyright 2011 The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * * Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 8 * * Redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution. 11 * * Neither the name of Google Inc. nor the names of its contributors may 12 * be used to endorse or promote products derived from this software 13 * without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 18 * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 24 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef CONSTRAINEDCRYPTO_SHA256_H_ 28 #define CONSTRAINEDCRYPTO_SHA256_H_ 29 30 #include <stdint.h> 31 #include "hash-internal.h" 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif // __cplusplus 36 37 typedef HASH_CTX SHA256_CTX; 38 39 void SHA256_init(SHA256_CTX* ctx); 40 void SHA256_update(SHA256_CTX* ctx, const void* data, int len); 41 const uint8_t* SHA256_final(SHA256_CTX* ctx); 42 43 // Convenience method. Returns digest address. 44 const uint8_t* SHA256_hash(const void* data, int len, uint8_t* digest); 45 46 #define SHA256_DIGEST_SIZE 32 47 48 #ifdef __cplusplus 49 } 50 #endif // __cplusplus 51 52 #endif // CONSTRAINEDCRYPTO_SHA256_H_ 53