DtlsPrfTests.cs

using System;
using System.Net.Sockets;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Waher.Runtime.Inventory;

namespace Waher.Security.DTLS.Test
{
	[TestClass]
	public class DtlsPrfTests
	{
		[TestMethod]
		public void Test_01_PseudoRandomFunction()
		{
			ICipher Cipher = new Waher.Security.DTLS.Ciphers.TLS_PSK_WITH_AES_128_CCM_8();

			byte[] Secret = new byte[]
			{
				0x9b, 0xbe, 0x43, 0x6b, 0xa9, 0x40, 0xf0, 0x17,
				0xb1, 0x76, 0x52, 0x84, 0x9a, 0x71, 0xdb, 0x35
			};

			byte[] Seed = new byte[]
			{
				0xa0, 0xba, 0x9f, 0x93, 0x6c, 0xda, 0x31, 0x18,
				0x27, 0xa6, 0xf7, 0x96, 0xff, 0xd5, 0x19, 0x8c
			};

			byte[] ExpectedOutput = new byte[]
			{
				0xe3, 0xf2, 0x29, 0xba, 0x72, 0x7b, 0xe1, 0x7b,
				0x8d, 0x12, 0x26, 0x20, 0x55, 0x7c, 0xd4, 0x53,
				0xc2, 0xaa, 0xb2, 0x1d, 0x07, 0xc3, 0xd4, 0x95,
				0x32, 0x9b, 0x52, 0xd4, 0xe6, 0x1e, 0xdb, 0x5a,
				0x6b, 0x30, 0x17, 0x91, 0xe9, 0x0d, 0x35, 0xc9,
				0xc9, 0xa4, 0x6b, 0x4e, 0x14, 0xba, 0xf9, 0xaf,
				0x0f, 0xa0, 0x22, 0xf7, 0x07, 0x7d, 0xef, 0x17,
				0xab, 0xfd, 0x37, 0x97, 0xc0, 0x56, 0x4b, 0xab,
				0x4f, 0xbc, 0x91, 0x66, 0x6e, 0x9d, 0xef, 0x9b,
				0x97, 0xfc, 0xe3, 0x4f, 0x79, 0x67, 0x89, 0xba,
				0xa4, 0x80, 0x82, 0xd1, 0x22, 0xee, 0x42, 0xc5,
				0xa7, 0x2e, 0x5a, 0x51, 0x10, 0xff, 0xf7, 0x01,
				0x87, 0x34, 0x7b, 0x66
			};


			byte[] Random = Cipher.PRF(Secret, "test label", Seed, 100);

			AesCcmTests.AssertEqual(ExpectedOutput, Random);
		}
	}
}