Keychain helpers. These work on iOS7 onwards only. For compatibility with previoous iOS versions, the "Synchronizable" property must be removed / ignored.
        public void Test_50_GetPasswordForUsernameSyncable()
        {
            var result = KeychainHelpers.GetPasswordForUsername("*****@*****.**", "myService", true);

            Assert.That(result == "my password");
        }
        public void Test_60_DeletePasswordForUsernameSyncable()
        {
            var result = KeychainHelpers.DeletePasswordForUsername("*****@*****.**", "myService", true);

            Assert.That(result == SecStatusCode.Success);
        }
        public void Test_40_SetPasswordForUsernameSyncable()
        {
            var result = KeychainHelpers.SetPasswordForUsername("*****@*****.**", "my password", "myService", SecAccessible.Always, true);

            Assert.That(result == MonoTouch.Security.SecStatusCode.Success);
        }