IOSAD-177 Better method names for PEPPassphraseProviderProtocol

PEPObjCAdapterFramework/PEPPassphraseProviderProtocol.h

@@ -32,7 +32,7 @@ typedef void (^PEPPassphraseProviderCallback)(NSString * _Nullable passphrase);
 /// @param completion Callback that either retries the engine call that lead
 /// to the adapter calling into the PEPPassphraseProviderProtocol delegate,
 /// or, if the given passphrase is nil, return the error to the caller.
-- (void)passphraseRequiredCompletion:(PEPPassphraseProviderCallback)completion;
+- (void)passphraseRequired:(PEPPassphraseProviderCallback)completion;
 
 /// Called by the adapter when the engine signals PEPStatusWrongPassphrase.
 ///
@@ -41,7 +41,7 @@ typedef void (^PEPPassphraseProviderCallback)(NSString * _Nullable passphrase);
 /// @param completion Callback that either retries the engine call that lead
 /// to the adapter calling into the PEPPassphraseProviderProtocol delegate,
 /// or, if the given passphrase is nil, return the error to the caller.
-- (void)wrongPassphraseCompletion:(PEPPassphraseProviderCallback)completion;
+- (void)wrongPassphrase:(PEPPassphraseProviderCallback)completion;
 
 /// Signals that the passphrase indicated by the callback in one of the calls of
 /// this delegate was too long and cannot be used.

pEpObjCAdapter/PEPInternalSession+PassphraseCache.m

@@ -63,11 +63,11 @@
         while (YES) {
             if (lastPassphraseProviderStatus == PEP_PASSPHRASE_REQUIRED) {
                 dispatch_group_enter(group);
-                [passphraseProvider passphraseRequiredCompletion:passPhraseCallback];
+                [passphraseProvider passphraseRequired:passPhraseCallback];
                 dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
             } else if (lastPassphraseProviderStatus == PEP_WRONG_PASSPHRASE) {
                 dispatch_group_enter(group);
-                [passphraseProvider wrongPassphraseCompletion:passPhraseCallback];
+                [passphraseProvider wrongPassphrase:passPhraseCallback];
                 dispatch_group_wait(group, DISPATCH_TIME_FOREVER);
             }