Support Windows and Windows Phone apps about identity HOT 6 CLOSED

public static string HashPassword(string password)
{
    var salt = CryptographicBuffer.GenerateRandom(SaltSize);
    var passwordBytes = CryptographicBuffer.ConvertStringToBinary(password, BinaryStringEncoding.Utf8);
    var deriver = KeyDerivationAlgorithmProvider.OpenAlgorithm(KeyDerivationAlgorithmNames.Pbkdf2Sha1);
    var passwordKey = deriver.CreateKey(passwordBytes);
    var parameters = KeyDerivationParameters.BuildForPbkdf2(salt, Pbkdf2IterCount);
    var subkey = CryptographicEngine.DeriveKeyMaterial(passwordKey, parameters, Pbkdf2SubkeyLength);

    var outputBytes = new byte[1 + SaltSize + Pbkdf2SubkeyLength];
    Buffer.BlockCopy(salt.ToArray(), 0, outputBytes, 1, SaltSize);
    Buffer.BlockCopy(subkey.ToArray(), 0, outputBytes, 1 + SaltSize, Pbkdf2SubkeyLength);

    return Convert.ToBase64String(outputBytes);
}

public static bool VerifyHashedPassword(string hashedPassword, string password)
{
    var hashedPasswordBytes = Convert.FromBase64String(hashedPassword);

    if (hashedPasswordBytes.Length != 1 + SaltSize + Pbkdf2SubkeyLength || hashedPasswordBytes[0] != 0)
        return false;

    var salt = new byte[SaltSize];
    Buffer.BlockCopy(hashedPasswordBytes, 1, salt, 0, SaltSize);
    var storedSubkey = new byte[Pbkdf2SubkeyLength];
    Buffer.BlockCopy(hashedPasswordBytes, 1 + SaltSize, storedSubkey, 0, Pbkdf2SubkeyLength);
    var passwordBytes = CryptographicBuffer.ConvertStringToBinary(password, BinaryStringEncoding.Utf8);
    var deriver = KeyDerivationAlgorithmProvider.OpenAlgorithm(KeyDerivationAlgorithmNames.Pbkdf2Sha1);
    var passwordKey = deriver.CreateKey(passwordBytes);
    var parameters = KeyDerivationParameters.BuildForPbkdf2(salt.AsBuffer(), Pbkdf2IterCount);
    var generatedSubkey = CryptographicEngine.DeriveKeyMaterial(passwordKey, parameters, Pbkdf2SubkeyLength);

    return CryptographicBuffer.Compare(storedSubkey.AsBuffer(), generatedSubkey);
}