OLMKit: Add [OLMUtility ed25519Verify]

1 files changed, 14 insertions, 0 deletions

diff --git a/xcode/OLMKit/OLMUtility.h b/xcode/OLMKit/OLMUtility.h
index 8acbf40..eca9d3a 100644
--- a/xcode/OLMKit/OLMUtility.h
+++ b/xcode/OLMKit/OLMUtility.h
@@ -10,6 +10,20 @@
 
 @interface OLMUtility : NSObject
 
+/**
+ Verify an ed25519 signature.
+
+ @param key the ed25519 key.
+ @param message the message which was signed.
+ @param signature the base64-encoded signature to be checked.
+ @param the result error if there is a problem with the verification.
+ If the key was too small then the message will be "OLM.INVALID_BASE64".
+ If the signature was invalid then the message will be "OLM.BAD_MESSAGE_MAC".
+
+ @return YES if valid.
+ */
+- (BOOL)ed25519Verify:(NSString*)key message:(NSString*)message signature:(NSString*)signature error:(NSError**)error;
+
 + (NSMutableData*) randomBytesOfLength:(NSUInteger)length;
 
 @end