Us416558 keychain storage

MASFoundation/Classes/_private_/services/access/MASAccessService.h

@@ -341,6 +341,16 @@ extern NSString * const MASKeychainStorageKeyDeviceVendorId;
 
 
 
+/**
+ Deletes keychain storage item based on storage key
+
+ @param storageKey NSString of storage key.
+ @param error NSError object reference.
+ */
+- (void)deleteForStorageKey:(NSString *)storageKey error:(NSError **)error;
+
+
+
 ///--------------------------------------
 /// @name Public
 ///--------------------------------------

MASFoundation/Classes/_private_/services/access/MASAccessService.m

@@ -671,6 +671,23 @@ - (SecKeyRef)getAccessValueCryptoKeyWithStorageKey:(NSString *)storageKey
 }
 
 
+- (void)deleteForStorageKey:(NSString *)storageKey error:(NSError **)error
+{
+    NSString *storageType = [self getStorageTypeWithKey:storageKey];
+    NSString *accessValueAsString = [self convertKeyString:storageKey];
+    MASIKeyChainStore *destinationStorage = _storages[storageType];
+
+    NSError *operationError = nil;
+
+    [destinationStorage removeItemForKey:accessValueAsString error:&operationError];
+
+    if (operationError && error)
+    {
+        *error = operationError;
+    }
+}
+
+
 #pragma mark - Private
 
 + (NSString *)padding:(NSString *)encodedString{

MASFoundation/Classes/models/MASSharedStorage.h

@@ -74,4 +74,14 @@
  */
 + (BOOL)saveData:(NSData *_Nonnull)data key:(NSString *_Nonnull)key error:(NSError * __nullable __autoreleasing * __nullable)error;
 
+
+
+/**
+ Deletes any data type with the specified key from shared keychain storage.
+
+ @param key NSString of the key used to store the data
+ @param error NSError object reference that would notify if there was any error while deleting the data
+ */
++ (void)deleteForKey:(NSString *_Nonnull)key error:(NSError * __nullable __autoreleasing * __nullable)error;
+
 @end

MASFoundation/Classes/models/MASSharedStorage.m

@@ -215,4 +215,50 @@ + (BOOL)saveData:(NSData *)data key:(NSString *)key error:(NSError **)error
     return result;
 }
 
+
++ (void)deleteForKey:(NSString *_Nonnull)key error:(NSError * __nullable __autoreleasing * __nullable)error
+{
+    //
+    //  Check if SDK was initialized
+    //
+    if ([MAS MASState] != MASStateDidStart)
+    {
+        if (error)
+        {
+            *error = [NSError errorMASIsNotStarted];
+        }
+
+        return;
+    }
+
+    //
+    //  Check for data key
+    //
+    if (key == nil || [key length] <= 0)
+    {
+        if (error)
+        {
+            *error = [NSError errorForFoundationCode:MASFoundationErrorCodeSharedStorageNotNilKey errorDomain:MASFoundationErrorDomainLocal];
+        }
+
+        return;
+    }
+
+    NSError *operationError = nil;
+    [[MASAccessService sharedService] deleteForStorageKey:[NSString stringWithFormat:@"%@.%@", MASSharedStorageCustomPrefix, key] error:&operationError];
+
+    //
+    //  If an error occurred while keychain operation, convert it into MASFoundationErrorDomainLocal error object
+    //
+    if (operationError)
+    {
+        NSError *thisError = [NSError errorWithDomain:MASFoundationErrorDomainLocal code:operationError.code userInfo:@{NSLocalizedDescriptionKey : operationError.localizedDescription}];
+
+        if (error)
+        {
+            *error = thisError;
+        }
+    }
+}
+
 @end