public ZucKeyStreamGenerator Zuc15Vector(byte[] sk, byte[] iv, uint z1, uint z2)
{
var cipher = new ZucKeyStreamGenerator(sk, iv);
Assert.Equal(z1, cipher.NextKey());
Assert.Equal(z2, cipher.NextKey());
return(cipher);
}
public void CrossLoadStateThrows(ZucVersion v)
{
var st14 = new ZucKeyStreamGenerator(new byte[32], new byte[23], ZucVersion.Zuc14);
var sttest = new ZucKeyStreamGenerator(new byte[32], new byte[23], v);
Assert.Throws <InvalidOperationException>(() => sttest.LoadState(st14.DumpState()));
Assert.Throws <InvalidOperationException>(() => st14.LoadState(sttest.DumpState()));
}
public void BadVersionThrows()
{
var st = new ZucKeyStreamGenerator(new byte[32], new byte[23], ZucVersion.Zuc14).DumpState();
for (var i = 0; i < st.Length; i++)
{
st[i] = 0;
}
Assert.Throws <InvalidOperationException>(() => new ZucKeyStreamGenerator(st));
Assert.Throws <ArgumentException>(() => new ZucKeyStreamGenerator(new byte[32], new byte[23], 0));
}
public void Zuc14WeakKeyIvCollision(byte[] sk, byte[] iv1, byte[] iv2, uint[] keystream)
{
var cipher1 = new ZucKeyStreamGenerator(sk, iv1, ZucVersion.Zuc14);
var cipher2 = new ZucKeyStreamGenerator(sk, iv2, ZucVersion.Zuc14);
foreach (var tv in keystream)
{
Assert.Equal(tv, cipher1.NextKey());
Assert.Equal(tv, cipher2.NextKey());
}
for (int i = 0; i < 5000; i++)
{
Assert.Equal(cipher2.NextKey(), cipher1.NextKey());
}
}
public void Zuc256EVector(byte[] sk, byte[] iv, uint[] seq)
{
var cipher = new ZucKeyStreamGenerator(sk, iv, ZucVersion.Zuc256E);
Assert.Equal(seq, cipher.EnumerateKeys().Take(seq.Length));
}
public Eia3Mac(byte[] rgbKey, ZucVersion version = ZucVersion.Zuc15)
{
_version = version;
_cipher = null !;
Key = rgbKey;
}
public override void Initialize()
{
_cipher = new ZucKeyStreamGenerator(_sk, _iv, _version);
_p = 64;
_a = 0;
}
