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/**
* Copyright 2017 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**************************************************************************
*/
#import <Foundation/Foundation.h>
@class TINKKeysetHandle;
@protocol TINKHybridDecrypt;
NS_ASSUME_NONNULL_BEGIN
/**
* TINKHybridDecryptFactory allows for obtaining a TINKHybridDecrypt primitive from a
* TINKKeysetHandle.
*
* TINKHybridDecryptFactory gets primitives from the Registry, which can be initialized via
* convenience methods from TINKHybridConfig. Here is an example how one can obtain and use a
* TINKHybridDecrypt primitive:
*
* NSError *error = nil;
* TINKHybridConfig *hybridConfig = [[TINKHybridConfig alloc] initWithError:&error];
* if (!hybridConfig || error) {
* // handle error.
* }
*
* if (![TINKConfig registerConfig:hybridConfig error:&error]) {
* // handle error.
* }
*
* TINKKeysetHandle keysetHandle = ...;
* id<TINKHybridDecrypt> hybridDecrypt =
* [TINKHybridDecryptFactory primitiveWithKeysetHandle:keysetHandle error:&error];
* if (!hybridDecrypt || error) {
* // handle error.
* }
*
* NSData *plaintext = ...;
* NSData *contextInfo = ...;
* NSData *plaintext = [hybridDecrypt decrypt:ciphertext withContextInfo:contextInfo
* error:&error];
*/
@interface TINKHybridDecryptFactory : NSObject
/**
* Returns an object that conforms to the TINKHybridDecrypt protocol. It uses key material from the
* keyset specified via @c keysetHandle.
*/
+ (nullable id<TINKHybridDecrypt>)primitiveWithKeysetHandle:(TINKKeysetHandle *)keysetHandle
error:(NSError **)error;
@end
NS_ASSUME_NONNULL_END