OSX/utilities/SecCFCCWrappers.c

   1 /*
   2  * Copyright (c) 2015 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 #include <utilities/SecCFCCWrappers.h>
  26
  27 CFDataRef CFDataCreateDigestWithBytes(CFAllocatorRef allocator, const struct ccdigest_info *di, size_t len,
  28                                 const void *data, CFErrorRef *error) {
  29     CFMutableDataRef digest = CFDataCreateMutable(allocator, di->output_size);
  30     CFDataSetLength(digest, di->output_size);
  31     ccdigest(di, len, data, CFDataGetMutableBytePtr(digest));
  32     return digest;
  33 }
  34
  35 CFDataRef CFDataCreateSHA1DigestWithBytes(CFAllocatorRef allocator, size_t len, const void *data, CFErrorRef *error) {
  36     return CFDataCreateDigestWithBytes(allocator, ccsha1_di(), len, data, error);
  37 }
  38
  39 CFDataRef CFDataCreateSHA256DigestWithBytes(CFAllocatorRef allocator, size_t len, const void *data, CFErrorRef *error) {
  40     return CFDataCreateDigestWithBytes(allocator, ccsha256_di(), len, data, error);
  41 }
  42
  43
  44 CFDataRef CFDataCopySHA1Digest(CFDataRef dataToDigest, CFErrorRef *error) {
  45     CFIndex length = CFDataGetLength(dataToDigest);
  46     assert((unsigned long)length < UINT32_MAX); /* Debug check. Correct as long as CFIndex is long */
  47     return CFDataCreateSHA1DigestWithBytes(CFGetAllocator(dataToDigest), length, CFDataGetBytePtr(dataToDigest), error);
  48 }
  49
  50 CFDataRef CFDataCopySHA256Digest(CFDataRef dataToDigest, CFErrorRef *error) {
  51     CFIndex length = CFDataGetLength(dataToDigest);
  52     assert((unsigned long)length < UINT32_MAX); /* Debug check. Correct as long as CFIndex is long */
  53     return CFDataCreateSHA256DigestWithBytes(CFGetAllocator(dataToDigest), length, CFDataGetBytePtr(dataToDigest), error);
  54 }