libkern/crypto/corecrypto_sha2.c

   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 #include <libkern/crypto/crypto_internal.h>
  30 #include <libkern/crypto/sha2.h>
  31 #include <kern/debug.h>
  32 #include <corecrypto/ccdigest.h>
  33
  34 void SHA256_Init(SHA256_CTX *ctx)
  35 {
  36         const struct ccdigest_info *di;
  37         di=g_crypto_funcs->ccsha256_di;
  38
  39         /* Make sure the context size for the digest info fits in the one we have */
  40         if(ccdigest_di_size(di)>sizeof(SHA256_CTX))
  41                 panic("%s: inconsistent size for SHA256 context", __FUNCTION__);
  42
  43         g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
  44 }
  45
  46 void SHA256_Update(SHA256_CTX *ctx, const void *data, size_t len)
  47 {
  48         const struct ccdigest_info *di;
  49         di=g_crypto_funcs->ccsha256_di;
  50
  51         g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
  52 }
  53
  54 void SHA256_Final(void *digest, SHA256_CTX *ctx)
  55 {
  56         const struct ccdigest_info *di;
  57         di=g_crypto_funcs->ccsha256_di;
  58
  59         ccdigest_final(di, ctx->ctx, digest);
  60 }
  61
  62 void SHA384_Init(SHA384_CTX *ctx)
  63 {
  64         const struct ccdigest_info *di;
  65         di=g_crypto_funcs->ccsha384_di;
  66
  67         /* Make sure the context size for the digest info fits in the one we have */
  68         if(ccdigest_di_size(di)>sizeof(SHA384_CTX))
  69                 panic("%s: inconsistent size for SHA384 context", __FUNCTION__);
  70
  71         g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
  72 }
  73
  74 void SHA384_Update(SHA384_CTX *ctx, const void *data, size_t len)
  75 {
  76         const struct ccdigest_info *di;
  77         di=g_crypto_funcs->ccsha384_di;
  78
  79         g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
  80 }
  81
  82
  83 void SHA384_Final(void *digest, SHA384_CTX *ctx)
  84 {
  85         const struct ccdigest_info *di;
  86         di=g_crypto_funcs->ccsha512_di;
  87
  88         ccdigest_final(di, ctx->ctx, digest);
  89 }
  90
  91 void SHA512_Init(SHA512_CTX *ctx)
  92 {
  93         const struct ccdigest_info *di;
  94         di=g_crypto_funcs->ccsha512_di;
  95
  96         /* Make sure the context size for the digest info fits in the one we have */
  97         if(ccdigest_di_size(di)>sizeof(SHA512_CTX))
  98                 panic("%s: inconsistent size for SHA512 context", __FUNCTION__);
  99
 100         g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx);
 101 }
 102
 103 void SHA512_Update(SHA512_CTX *ctx, const void *data, size_t len)
 104 {
 105         const struct ccdigest_info *di;
 106         di=g_crypto_funcs->ccsha512_di;
 107
 108         g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data);
 109 }
 110
 111 void SHA512_Final(void *digest, SHA512_CTX *ctx)
 112 {
 113         const struct ccdigest_info *di;
 114         di=g_crypto_funcs->ccsha512_di;
 115
 116         ccdigest_final(di, ctx->ctx, digest);
 117 }