How do you reset an iPhone App's Keychain?

Question

I would like to know if there is a way to reset my app\'s Keychain. I am wondering whether anything like [NSUserDefaults resetStandardUserDefaults] exists for k

Answer 1

- (void)resetKeychainItem
{
    OSStatus junk = noErr;
    if (!keychainItemData) {
        self.keychainItemData = [[NSMutableDictionary alloc] init];
    } else if (keychainItemData){
        NSMutableDictionary *tempDictionary = [self dictionaryToSecItemFormat:keychainItemData];
        junk = SecItemDelete((CFDictionaryRef)tempDictionary);
        if ( junk != noErr ) {
            UIAlertView *dialog = [[UIAlertView alloc] initWithTitle:@"Keychain Error" message:[NSString stringWithFormat:@"A problem with updating the secure Keychain items with this information (likely, this email address information is duplicated in another Player).  Error code: %d %@", junk, [self resultText:-junk]] delegate:self cancelButtonTitle:NSLocalizedStringFromTable(@"Ok", @"Localizable", @"display text") otherButtonTitles:nil];
            [dialog show];
            [dialog release];
            //NSAssert( junk == noErr || junk == errSecItemNotFound, @"Problem deleting current dictionary." );
            return;
        }
    }

    // Default attributes for keychain item.
    [keychainItemData setObject:@"" forKey:(id)kSecAttrAccount];
    [keychainItemData setObject:@"" forKey:(id)kSecValueData];
    [keychainItemData setObject:@"" forKey:(id)kSecAttrLabel];
    [keychainItemData setObject:@"" forKey:(id)kSecAttrDescription];
    [keychainItemData setObject:@"" forKey:(id)kSecAttrComment];
    // Default data for keychain item.
    [keychainItemData setObject:@"" forKey:(id)kSecAttrModificationDate];
    [keychainItemData setObject:@"" forKey:(id)kSecAttrService];


}