From 59076a6bda54c90a257eaf3dae32aad7ad178d31 Mon Sep 17 00:00:00 2001
From: manuroe <manu@matrix.org>
Date: Tue, 23 Oct 2018 15:47:46 +0200
Subject: OLMKit: Expose PK private key length

---
 xcode/OLMKit/OLMPkDecryption.h | 7 +++++++
 xcode/OLMKit/OLMPkDecryption.m | 6 +++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/xcode/OLMKit/OLMPkDecryption.h b/xcode/OLMKit/OLMPkDecryption.h
index 8715a99..823dc78 100644
--- a/xcode/OLMKit/OLMPkDecryption.h
+++ b/xcode/OLMKit/OLMPkDecryption.h
@@ -59,6 +59,13 @@ NS_ASSUME_NONNULL_BEGIN
  */
 - (NSString *)decryptMessage:(OLMPkMessage*)message error:(NSError* _Nullable *)error;
 
+/**
+ Private key length.
+
+ @return the length in bytes.
+ */
++ (NSUInteger)privateKeyLength;
+
 @end
 
 NS_ASSUME_NONNULL_END
diff --git a/xcode/OLMKit/OLMPkDecryption.m b/xcode/OLMKit/OLMPkDecryption.m
index 75fe5f2..4af2c71 100644
--- a/xcode/OLMKit/OLMPkDecryption.m
+++ b/xcode/OLMKit/OLMPkDecryption.m
@@ -130,7 +130,7 @@
     return privateKey;
 }
 
--(NSString *)decryptMessage:(OLMPkMessage *)message error:(NSError *__autoreleasing  _Nullable *)error {
+- (NSString *)decryptMessage:(OLMPkMessage *)message error:(NSError *__autoreleasing  _Nullable *)error {
     NSData *messageData = [message.ciphertext dataUsingEncoding:NSUTF8StringEncoding];
     NSData *macData = [message.mac dataUsingEncoding:NSUTF8StringEncoding];
     NSData *ephemeralKeyData = [message.ephemeralKey dataUsingEncoding:NSUTF8StringEncoding];
@@ -189,6 +189,10 @@
     return plaintext;
 }
 
++ (NSUInteger)privateKeyLength {
+    return olm_pk_private_key_length();
+}
+
 #pragma mark OLMSerializable
 
 /** Initializes from encrypted serialized data. Will throw error if invalid key or invalid base64. */
-- 
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