/**
 * TLSPRFTest
 * 
 * A test class for TLFPRF
 * Copyright (c) 2007 Henri Torgemane
 * 
 * See LICENSE.txt for full license information.
 */
package com.hurlant.crypto.tests
{
    import flash.utils.ByteArray;
    import com.hurlant.crypto.prng.TLSPRF;
    import com.hurlant.util.Hex;
    
    public class TLSPRFTest extends TestCase
    {
        public function TLSPRFTest(h:ITestHarness) {
            super(h, "TLS-PRF Testing");
            runTest(testVector, "TLF-PRF Test Vector");
            h.endTestCase()
        }
        
        /**
         * Test Vector as defined in
         * http://www.imc.org/ietf-tls/mail-archive/msg01589.html
         */
        private function testVector():void {
            var secret:ByteArray = new ByteArray;
            for (var i:uint=0;i<48;i++) {
                secret[i]= 0xab;
            }
            var label:String = "PRF Testvector";
            var seed:ByteArray = new ByteArray;
            for (i=0;i<64;i++) {
                seed[i] = 0xcd;
            }
            var prf:TLSPRF = new TLSPRF(secret, label, seed);
            var out:ByteArray = new ByteArray;
            prf.nextBytes(out, 104);
            var expected:String = "D3 D4 D1 E3 49 B5 D5 15 04 46 66 D5 1D E3 2B AB" + 
                    "25 8C B5 21 B6 B0 53 46 3E 35 48 32 FD 97 67 54" + 
                    "44 3B CF 9A 29 65 19 BC 28 9A BC BC 11 87 E4 EB" + 
                    "D3 1E 60 23 53 77 6C 40 8A AF B7 4C BC 85 EF F6" + 
                    "92 55 F9 78 8F AA 18 4C BB 95 7A 98 19 D8 4A 5D" + 
                    "7E B0 06 EB 45 9D 3A E8 DE 98 10 45 4B 8B 2D 8F" + 
                    "1A FB C6 55 A8 C9 A0 13";
            var expect:String = Hex.fromArray(Hex.toArray(expected));
            assert("out == expected", Hex.fromArray(out)==expect);
        }
    }
}