Security-59306.11.20.tar.gz

[apple/security.git] / OSX / utilities / SecPaddingConfigurationsPriv.h

diff --git a/OSX/utilities/SecPaddingConfigurationsPriv.h b/OSX/utilities/SecPaddingConfigurationsPriv.h
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+/*
+ * Copyright (c) 2017 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+#ifndef SecPaddingConfigurations_h
+#define SecPaddingConfigurations_h
+
+#include <CoreFoundation/CoreFoundation.h>
+
+typedef CF_ENUM(uint8_t, SecPaddingType) {
+       SecPaddingTypeMMCS CF_ENUM_AVAILABLE(10_13, 11_0) = 0,
+} CF_ENUM_AVAILABLE(10_13, 11_0);
+
+/*!
+ @function
+ @abstract   Compute the padding size given the size of the content
+ @param      type Type of content to be protected
+ @param      size size before padding
+ @param      error Output parameter to a CFErrorRef
+ @result     number of bytes to add to the message. Only returns a negative value on SecPaddingType mismatch with a CFError assigned
+ */
+int64_t SecPaddingCompute(SecPaddingType type, uint32_t size, CFErrorRef *error)
+__OSX_AVAILABLE(10.13) __IOS_AVAILABLE(11.0) __TVOS_AVAILABLE(11.0) __WATCHOS_AVAILABLE(4.0);
+
+#endif