1 files changed, 64 insertions, 0 deletions
diff --git a/xcode/OLMKit/OLMPkDecryption.h b/xcode/OLMKit/OLMPkDecryption.h
new file mode 100644
index 0000000..8715a99
--- /dev/null
+++ b/xcode/OLMKit/OLMPkDecryption.h
@@ -0,0 +1,64 @@
+/*
+ Copyright 2018 New Vector Ltd
+ 
+ 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>
+
+#import "OLMSerializable.h"
+#import "OLMPkMessage.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface OLMPkDecryption : NSObject <OLMSerializable, NSSecureCoding>
+
+/**
+ Initialise the key from the private part of a key as returned by `privateKey`.
+
+ Note that the pubkey is a base64 encoded string, but the private key is
+ an unencoded byte array.
+
+ @param privateKey the private key part.
+ @param error the error if any.
+ @return the associated public key.
+ */
+- (NSString *)setPrivateKey:(NSData*)privateKey error:(NSError* _Nullable *)error;
+
+/**
+ Generate a new key to use for decrypting messages.
+
+ @param error the error if any.
+ @return the public part of the generated key.
+ */
+- (NSString *)generateKey:(NSError* _Nullable *)error;
+
+/**
+ Get the private key.
+
+ @return the private key;
+ */
+- (NSData *)privateKey;
+
+/**
+ Decrypt a ciphertext.
+
+ @param message the cipher message to decrypt.
+ @param error the error if any.
+ @return the decrypted message.
+ */
+- (NSString *)decryptMessage:(OLMPkMessage*)message error:(NSError* _Nullable *)error;
+
+@end
+
+NS_ASSUME_NONNULL_END