Generate SHA1 Hash in Portable Class Library

Question

I\'m trying to build a portable class library that generates OAuth urls for other classes/applications to use. This class library using OAuth has to be a portable class libr

Answer 1

I wanted sign OAuth also, and am looking at PCL Crypto - this test shows creation of a HmacSha1 hash, and compares the result to the standard .NET Framework way.

    [Test]
    public void CreateHash_VersusComputeHash_ReturnsEquivalent()
    {
        // USING TRADITIONAL .NET:
        var key = new byte[32];
        var contentBytes = Encoding.UTF8.GetBytes("some kind of content to hash");
        new RNGCryptoServiceProvider().GetBytes(key);

        var alg = new HMACSHA1(key); // Bouncy castle usage does not differ from this
        var result = alg.ComputeHash(contentBytes);




        // USING PCL CRYPTO:
        var algorithm = WinRTCrypto.MacAlgorithmProvider.OpenAlgorithm(MacAlgorithm.HmacSha1);

        byte[] mac;
        using (var hasher = algorithm.CreateHash(key))
        {
            hasher.Append(contentBytes);
            mac = hasher.GetValueAndReset();
        }




        // Assert results:
        Assert.AreEqual(result.Length, mac.Length);

        for (var i = 0; i < result.Length; i++)
        {
            Assert.AreEqual(result[i], mac[i]);
        }
    }