private static Certificate ExtractCertificate(byte[] data, byte[] providerKey)
{
var certificate = new Certificate();
if (data.Length != 116)
{
return(null);
}
certificate.MagicQuery = ArrayHelper.SubArray(data, 96, 8);
var serial = ArrayHelper.SubArray(data, 104, 4);
var tsBegin = ArrayHelper.SubArray(data, 108, 4);
var tsEnd = ArrayHelper.SubArray(data, 112, 4);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(serial);
Array.Reverse(tsBegin);
Array.Reverse(tsEnd);
}
certificate.Serial = BitConverter.ToInt32(serial, 0);
certificate.TsBegin = UnixTimeStampToDateTime(BitConverter.ToInt32(tsBegin, 0));
certificate.TsEnd = UnixTimeStampToDateTime(BitConverter.ToInt32(tsEnd, 0));
try
{
var m = PublicKeyAuth.Verify(data, providerKey);
certificate.Valid = true;
return(certificate);
}
catch (Exception)
{
}
return(null);
}
public void SimpleVerifyTest()
{
var expected = Encoding.UTF8.GetBytes("Adam Caudill");
var actual = PublicKeyAuth.Verify(Utilities.HexToBinary("8d5436accbe258a6b252c1140f38d7b8dc6196619945818b72512b6a8019d86dfeeb56f40c4d4b983d97dfeed37948527256c3567d6b253757fcfb32bef56f0b4164616d2043617564696c6c"),
Utilities.HexToBinary("4ffda13c11d61d2b9568e54bec06ea59368e84874883087645e64e5e9653422e"));
CollectionAssert.AreEqual(expected, actual);
}
public void VerifyTest()
{
var kp = PublicKeyAuth.GenerateKeyPair();
byte[] message = System.Text.Encoding.UTF8.GetBytes("Hello, World!");
var signature = PublicKeyAuth.Sign(message, kp.Secret);
var verification = PublicKeyAuth.Verify(signature, kp.Public);
Assert.AreEqual(message.ToString(), verification.ToString());
}
public void VerifyAuthBadKey()
{
//Don`t copy bobSk for other tests (bad key)!
//30 byte
var bobSk = new byte[] {
0x5d, 0xab, 0x08, 0x7e, 0x62, 0x4a, 0x8a, 0x4b,
0x79, 0xe1, 0x7f, 0x8b, 0x83, 0x80, 0x0e, 0xe6,
0x6f, 0x3b, 0xb1, 0x29, 0x26, 0x18, 0xb6, 0xfd,
0x1c, 0x2f, 0x8b, 0x27, 0xff, 0x88
};
PublicKeyAuth.Verify(Encoding.UTF8.GetBytes("Adam Caudill"), bobSk);
}
public void VerifyAuthBadKey()
{
//Don`t copy bobSk for other tests (bad key)!
//30 byte
var bobSk = new byte[] {
0x5d, 0xab, 0x08, 0x7e, 0x62, 0x4a, 0x8a, 0x4b,
0x79, 0xe1, 0x7f, 0x8b, 0x83, 0x80, 0x0e, 0xe6,
0x6f, 0x3b, 0xb1, 0x29, 0x26, 0x18, 0xb6, 0xfd,
0x1c, 0x2f, 0x8b, 0x27, 0xff, 0x88
};
var message = Encoding.UTF8.GetBytes("Adam Caudill");
Assert.Throws <KeyOutOfRangeException>(
() => PublicKeyAuth.Verify(message, bobSk));
}
public void VerifyAuthWrongKey()
{
//Don`t copy bobSk for other tests (bad key)!
//30 byte
var bobSk = new byte[] {
0x5d, 0xab, 0x08, 0x7e, 0x62, 0x4a, 0x8a, 0x4b,
0x79, 0xe1, 0x7f, 0x8b, 0x83, 0x80, 0x0e, 0xe6,
0x6f, 0x3b, 0xb1, 0x29, 0x26, 0x18, 0xb6, 0xfd,
0x1c, 0x2f, 0x8b, 0x27, 0xff, 0x88, 0x88, 0x88
};
var message = Encoding.UTF8.GetBytes("Adam Caudill");
//It`s not really signed ...
Assert.Throws <CryptographicException>(
() => PublicKeyAuth.Verify(message, bobSk));
}
/// <summary>
/// Verifies the message was signed with the private key that matches this public key.
/// </summary>
/// <param name='publicKey'>
/// Public key.
/// </param>
/// <param name='signedMessage'>
/// Signed message.
/// </param>
/// <returns>
/// The decrypted (verified) message.
/// </returns>
public byte[] Verify(byte[] publicKey, byte[] signedMessage)
{
return(PublicKeyAuth.Verify(signedMessage, publicKey));
}
