sha2.h (2822B)
1 /* 2 * FILE: sha2.h 3 * AUTHOR: Aaron D. Gifford <me@aarongifford.com> 4 * 5 * Copyright (c) 2000-2001, Aaron D. Gifford 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the copyright holder nor the names of contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef AR_SHA2_H 34 #define AR_SHA2_H 35 36 #include <sys/types.h> 37 #include <inttypes.h> 38 39 40 /*** SHA-256/384/512 Various Length Definitions ***********************/ 41 #define SHA384_BLOCK_LENGTH 128 42 #define SHA384_DIGEST_LENGTH 48 43 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 44 #define SHA512_BLOCK_LENGTH 128 45 #define SHA512_DIGEST_LENGTH 64 46 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 47 48 49 /*** SHA-384/512 Context Structures *******************************/ 50 51 typedef struct _SHA512_CTX { 52 uint64_t state[8]; 53 uint64_t bitcount[2]; 54 uint8_t buffer[SHA512_BLOCK_LENGTH]; 55 } SHA512_CTX; 56 57 typedef SHA512_CTX SHA384_CTX; 58 59 60 /*** SHA-384/512 Function Prototypes ******************************/ 61 62 void SHA384_Init(SHA384_CTX*); 63 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t); 64 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*); 65 void SHA384(const uint8_t*, size_t, char[SHA384_DIGEST_LENGTH]); 66 67 void SHA512_Init(SHA512_CTX*); 68 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t); 69 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*); 70 void SHA512(const uint8_t*, size_t, char[SHA512_DIGEST_LENGTH]); 71 72 #endif /* AR_SHA2_H */