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

Block-based version of Vegard’s solution:

void (^deleteAllKeysForSecClass)(CFTypeRef) = ^(CFTypeRef secClass) {
    id dict = @{(__bridge id)kSecClass: (__bridge id)secClass};
    OSStatus result = SecItemDelete((__bridge CFDictionaryRef) dict);
    NSAssert(result == noErr || result == errSecItemNotFound, @"Error deleting keychain data (%d)", (int)result);
};
deleteAllKeysForSecClass(kSecClassGenericPassword);
deleteAllKeysForSecClass(kSecClassInternetPassword);
deleteAllKeysForSecClass(kSecClassCertificate);
deleteAllKeysForSecClass(kSecClassKey);
deleteAllKeysForSecClass(kSecClassIdentity);

For those of us who like to just drop code in without having to have helper methods.