public void FailWithNotEqualsIvs()
{
var encoded = Xor.Encode("12345678901234567890123456789012", "12345678", "message", SBlockTypes.GOST);
var decoded = Xor.Decode("12345678901234567890123456789012", "00000000", "message", SBlockTypes.GOST);
Assert.IsNotNull(encoded);
Assert.IsNotNull(decoded);
Assert.IsNotEmpty(encoded);
Assert.IsNotEmpty(decoded);
Assert.AreNotEqual(decoded, encoded);
}
public void FailWithEmptyData()
{
byte[] key = Encoding.UTF8.GetBytes("12345678901234567890123456789012");
byte[] iv = Encoding.Default.GetBytes("12345678");
byte[] message = Encoding.UTF8.GetBytes("message");
Assert.Throws <ArgumentException>(() => Xor.Encode(new byte[] { }, iv, message, SBlockTypes.GOST));
Assert.Throws <ArgumentException>(() => Xor.Encode(key, new byte[] { }, new byte[] { }, SBlockTypes.GOST));
Assert.Throws <ArgumentException>(() => Xor.Encode(key, new byte[] { }, message, SBlockTypes.GOST));
Assert.Throws <ArgumentException>(() => Xor.Encode(new byte[] { }, new byte[] { }, new byte[] { }, SBlockTypes.GOST));
}
public void FailWithNullData()
{
byte[] key = Encoding.UTF8.GetBytes("12345678901234567890123456789012");
byte[] iv = Encoding.Default.GetBytes("12345678");
byte[] message = Encoding.UTF8.GetBytes("message");
Assert.Throws <ArgumentNullException>(() => Xor.Encode(null, iv, message, SBlockTypes.GOST));
Assert.Throws <ArgumentNullException>(() => Xor.Encode(key, null, null, SBlockTypes.GOST));
Assert.Throws <ArgumentNullException>(() => Xor.Encode(key, null, message, SBlockTypes.GOST));
Assert.Throws <ArgumentNullException>(() => Xor.Encode((byte[])null, null, null, SBlockTypes.GOST));
}
public void PassWithStrings()
{
var encoded = Xor.Encode("12345678901234567890123456789012", "12345678", "message", SBlockTypes.GOST);
var decoded = Xor.Decode("12345678901234567890123456789012", "12345678", "message", SBlockTypes.GOST);
Assert.IsNotNull(encoded);
Assert.IsNotNull(decoded);
Assert.IsNotEmpty(encoded);
Assert.IsNotEmpty(decoded);
Assert.AreEqual(decoded, encoded);
}
public void PassWithBytes()
{
byte[] key = Encoding.UTF8.GetBytes("12345678901234567890123456789012");
byte[] iv = Encoding.Default.GetBytes("12345678");
byte[] message = Encoding.Default.GetBytes("message");
var encoded = Xor.Encode(key, iv, message, SBlockTypes.GOST);
var decoded = Xor.Decode(key, iv, message, SBlockTypes.GOST);
Assert.IsNotNull(encoded);
Assert.IsNotNull(decoded);
Assert.IsNotEmpty(encoded);
Assert.IsNotEmpty(decoded);
Assert.AreEqual(decoded, encoded);
}
private void EncryptGost(Stream s, byte[] obj)
{
using (var key = new Rfc2898DeriveBytes(Key, Salt))
{
using (var aesAlg = new RijndaelManaged())
{
var gostKey = key.GetBytes(aesAlg.KeySize / 8);
var gostIV = aesAlg.IV.Take(8).ToArray();
s.Write(BitConverter.GetBytes(gostIV.Length), 0, sizeof(int));
s.Write(gostIV, 0, gostIV.Length);
var encryptedObject = Xor.Encode(gostKey, gostIV, obj, SBlockTypes.GOST);
s.Write(encryptedObject, 0, encryptedObject.Length);
}
}
}
public void FailWithShortIv()
{
Assert.Throws <ArgumentException>(() => Xor.Encode("12345678901234567890123456789", "1245678", "message", SBlockTypes.GOST));
}
