1 /* 2 * copyright (c) 2012 apple computer, inc. all rights reserved. 3 * 4 * @apple_osreference_license_header_start@ 5 * 6 * this file contains original code and/or modifications of original code 7 * as defined in and that are subject to the apple public source license 8 * version 2.0 (the 'license'). you may not use this file except in 9 * compliance with the license. the rights granted to you under the license 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an apple operating system software license agreement. 14 * 15 * please obtain a copy of the license at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * the original code and all software distributed under the license are 19 * distributed on an 'as is' basis, without warranty of any kind, either 20 * express or implied, and apple hereby disclaims all such warranties, 21 * including without limitation, any warranties of merchantability, 22 * fitness for a particular purpose, quiet enjoyment or non-infringement. 23 * please see the license for the specific language governing rights and 24 * limitations under the license. 25 * 26 * @apple_osreference_license_header_end@ 27 */ 28 29 #ifndef _CRYPTO_SHA2_H__ 30 #define _CRYPTO_SHA2_H__ 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <corecrypto/ccsha2.h> 37 38 /*** SHA-256/384/512 Various Length Definitions ***********************/ 39 #define SHA256_BLOCK_LENGTH CCSHA256_BLOCK_SIZE 40 #define SHA256_DIGEST_LENGTH CCSHA256_OUTPUT_SIZE 41 #define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1) 42 #define SHA384_BLOCK_LENGTH CCSHA512_BLOCK_SIZE 43 #define SHA384_DIGEST_LENGTH CCSHA384_OUTPUT_SIZE 44 #define SHA384_DIGEST_STRING_LENGTH (SHA384_DIGEST_LENGTH * 2 + 1) 45 #define SHA512_BLOCK_LENGTH CCSHA512_BLOCK_SIZE 46 #define SHA512_DIGEST_LENGTH CCSHA512_OUTPUT_SIZE 47 #define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1) 48 49 typedef struct { 50 ccdigest_ctx_decl(CCSHA256_STATE_SIZE, CCSHA256_BLOCK_SIZE, ctx); 51 } SHA256_CTX; 52 53 typedef struct SHA512_CTX { 54 ccdigest_ctx_decl(CCSHA512_STATE_SIZE, CCSHA512_BLOCK_SIZE, ctx); 55 } SHA512_CTX; 56 57 typedef SHA512_CTX SHA384_CTX; 58 59 /*** SHA-256/384/512 Function Prototypes ******************************/ 60 61 void SHA256_Init(SHA256_CTX *ctx); 62 void SHA256_Update(SHA256_CTX *ctx, const void *data, size_t len); 63 void SHA256_Final(void *digest, SHA256_CTX *ctx); 64 65 void SHA384_Init(SHA384_CTX *ctx); 66 void SHA384_Update(SHA384_CTX *ctx, const void *data, size_t len); 67 void SHA384_Final(void *digest, SHA384_CTX *ctx); 68 69 void SHA512_Init(SHA512_CTX *ctx); 70 void SHA512_Update(SHA512_CTX *ctx, const void *data, size_t len); 71 void SHA512_Final(void *digest, SHA512_CTX *ctx); 72 73 #ifdef __cplusplus 74 } 75 #endif /* __cplusplus */ 76 77 #endif /* _CRYPTO_SHA2_H__ */ 78