keychain/ckks/CKKSItemEncrypter.h

   1 /*
   2  * Copyright (c) 2016 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 #if OCTAGON
  25
  26 #include "keychain/securityd/SecDbItem.h"
  27
  28 @class CKKSItem;
  29 @class CKKSMirrorEntry;
  30 @class CKKSKey;
  31 @class CKKSOutgoingQueueEntry;
  32 @class CKKSAESSIVKey;
  33 @class CKRecordZoneID;
  34
  35 NS_ASSUME_NONNULL_BEGIN
  36
  37 #define CKKS_PADDING_MARK_BYTE 0x80
  38
  39 @interface CKKSItemEncrypter : NSObject
  40
  41 + (CKKSItem* _Nullable)encryptCKKSItem:(CKKSItem*)baseitem
  42                         dataDictionary:(NSDictionary*)dict
  43                       updatingCKKSItem:(CKKSItem* _Nullable)olditem
  44                              parentkey:(CKKSKey*)parentkey
  45                                  error:(NSError* _Nullable __autoreleasing* _Nullable)error;
  46
  47 + (NSDictionary* _Nullable)decryptItemToDictionary:(CKKSItem*)item error:(NSError* _Nullable __autoreleasing* _Nullable)error;
  48
  49 + (NSData* _Nullable)encryptDictionary:(NSDictionary*)dict
  50                                    key:(CKKSAESSIVKey*)key
  51                      authenticatedData:(NSDictionary<NSString*, NSData*>* _Nullable)ad
  52                                  error:(NSError* _Nullable __autoreleasing* _Nullable)error;
  53 + (NSDictionary* _Nullable)decryptDictionary:(NSData*)encitem
  54                                          key:(CKKSAESSIVKey*)key
  55                            authenticatedData:(NSDictionary<NSString*, NSData*>* _Nullable)ad
  56                                        error:(NSError* _Nullable __autoreleasing* _Nullable)error;
  57
  58 + (NSData*)padData:(NSData*)input blockSize:(NSUInteger)blockSize additionalBlock:(BOOL)extra;
  59 + (NSData* _Nullable)removePaddingFromData:(NSData*)input;
  60 @end
  61
  62 NS_ASSUME_NONNULL_END
  63 #endif  // OCTAGON