OSX/libsecurity_transform/lib/SecEncryptTransform.cpp

   1 /*
   2  * Copyright (c) 2010-2011 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 #include "SecEncryptTransform.h"
  25 #include "SecTransformInternal.h"
  26 #include "EncryptTransform.h"
  27 #include <utilities/SecCFRelease.h>
  28
  29 /* --------------------------------------------------------------------------
  30  Create the declared CFStringRefs
  31  -------------------------------------------------------------------------- */
  32
  33 const CFStringRef __nonnull kSecPaddingNoneKey = CFSTR("SecPaddingNoneKey");
  34 const CFStringRef __nonnull kSecPaddingPKCS1Key = CFSTR("SecPaddingPKCS1Key");
  35 const CFStringRef __nonnull kSecPaddingPKCS5Key = CFSTR("SecPaddingPKCS5Key");
  36 const CFStringRef __nonnull kSecPaddingPKCS7Key = CFSTR("SecPaddingPKCS7Key");
  37 const CFStringRef __nonnull kSecPaddingOAEPKey = CFSTR("OAEPPadding");
  38 const CFStringRef __nonnull kSecOAEPMGF1DigestAlgorithmAttributeName = CFSTR("OAEPMGF1DigestAlgo");
  39
  40 const CFStringRef __nonnull kSecModeNoneKey = CFSTR("SecModeNoneKey");
  41 const CFStringRef __nonnull kSecModeECBKey = CFSTR("SecModeECBKey");
  42 const CFStringRef __nonnull kSecModeCBCKey = CFSTR("SecModeCBCKey");
  43 const CFStringRef __nonnull kSecModeCFBKey = CFSTR("SecModeCFBKey");
  44 const CFStringRef __nonnull kSecModeOFBKey = CFSTR("SecModeOFBKey");
  45
  46 const CFStringRef __nonnull kSecOAEPMessageLengthAttributeName = CFSTR("OAEPMessageLength");
  47 const CFStringRef __nonnull kSecOAEPEncodingParametersAttributeName = CFSTR("OAEPEncodingParameters");
  48
  49 const CFStringRef __nonnull kSecEncryptKey = CFSTR("SecEncryptKey");
  50 const CFStringRef __nonnull kSecPaddingKey = CFSTR("SecPaddingKey");
  51 const CFStringRef __nonnull kSecIVKey = CFSTR("SecIVKey");
  52 const CFStringRef __nonnull kSecEncryptionMode = CFSTR("SecEncryptionMode");
  53
  54
  55 SecTransformRef SecEncryptTransformCreate(SecKeyRef keyRef, CFErrorRef* error)
  56 {
  57         SecTransformRef etRef = EncryptTransform::Make();
  58         EncryptTransform* et = (EncryptTransform*) CoreFoundationHolder::ObjectFromCFType(etRef);
  59         if (et->InitializeObject(keyRef, error))
  60         {
  61                 return etRef;
  62         }
  63         else
  64         {
  65
  66                 CFReleaseNull(etRef);
  67                 return NULL;
  68         }
  69 }
  70
  71
  72 CFTypeID SecEncryptTransformGetTypeID()
  73 {
  74         return Transform::GetCFTypeID();
  75 }
  76
  77 SecTransformRef SecDecryptTransformCreate(SecKeyRef keyRef, CFErrorRef* error)
  78 {
  79
  80         SecTransformRef dtRef = DecryptTransform::Make();
  81         DecryptTransform* dt = (DecryptTransform*) CoreFoundationHolder::ObjectFromCFType(dtRef);
  82         if (dt->InitializeObject(keyRef, error))
  83         {
  84                 return dtRef;
  85         }
  86         else
  87         {
  88                 CFReleaseNull(dtRef);
  89                 return NULL;
  90         }
  91 }
  92
  93 CFTypeID SecDecryptTransformGetTypeID()
  94 {
  95         return Transform::GetCFTypeID();
  96 }