libkern/libkern/crypto/sha2.h

   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    CCSHA384_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(CCSHA256_STATE_SIZE, CCSHA256_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__ */