OSX/utilities/SecPaddingConfigurationsPriv.h

   1 /*
   2  * Copyright (c) 2017 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 #ifndef SecPaddingConfigurations_h
  26 #define SecPaddingConfigurations_h
  27
  28 #include <CoreFoundation/CoreFoundation.h>
  29
  30 typedef CF_ENUM(uint8_t, SecPaddingType) {
  31         SecPaddingTypeMMCS CF_ENUM_AVAILABLE(10_13, 11_0) = 0,
  32 } CF_ENUM_AVAILABLE(10_13, 11_0);
  33
  34 /*!
  35  @function
  36  @abstract   Compute the padding size given the size of the content
  37  @param      type Type of content to be protected
  38  @param      size size before padding
  39  @param      error Output parameter to a CFErrorRef
  40  @result     number of bytes to add to the message. Only returns a negative value on SecPaddingType mismatch with a CFError assigned
  41  */
  42 int64_t SecPaddingCompute(SecPaddingType type, uint32_t size, CFErrorRef *error)
  43 __OSX_AVAILABLE(10.13) __IOS_AVAILABLE(11.0) __TVOS_AVAILABLE(11.0) __WATCHOS_AVAILABLE(4.0);
  44
  45 #endif