1 /* 2 * Copyright (C) 2008 The Android Open Source Project 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 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _EMBEDDED_SHA_H_ 30 #define _EMBEDDED_SHA_H_ 31 32 #include <inttypes.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 typedef struct SHA_CTX { 39 uint64_t count; 40 uint8_t buf[64]; 41 uint32_t state[5]; 42 } SHA_CTX; 43 44 void SHA_init(SHA_CTX *ctx); 45 void SHA_update(SHA_CTX *ctx, const void* data, int len); 46 const uint8_t* SHA_final(SHA_CTX *ctx); 47 48 /* Convenience method. Returns digest parameter value. */ 49 const uint8_t* SHA(const void *data, int len, uint8_t *digest); 50 51 #define SHA_DIGEST_SIZE 20 52 53 #ifdef __cplusplus 54 } 55 #endif 56 57 #endif 58