public void ComputeInverseSboxTable_returns_correct_result()
{
var dt = SjclAes.ComputeDoubleTable();
var tt = SjclAes.ComputeTrippleTable(dt);
var sbox = SjclAes.ComputeSboxTable(dt, tt);
var table = SjclAes.ComputeInverseSboxTable(sbox);
// Test data is generated with SJCL sources
Assert.AreEqual(256, table.Length);
Assert.AreEqual(0x52, table[0x00]);
Assert.AreEqual(0x09, table[0x01]);
Assert.AreEqual(0x6a, table[0x02]);
Assert.AreEqual(0x6b, table[0x7f]);
Assert.AreEqual(0x3a, table[0x80]);
Assert.AreEqual(0x0c, table[0xfe]);
Assert.AreEqual(0x7d, table[0xff]);
// Every value should be exactly once
Array.Sort(table);
for (var i = 0; i < 256; ++i)
{
Assert.AreEqual(i, table[i]);
}
}
public void ComputeInverseSboxTable_returns_correct_result()
{
var dt = SjclAes.ComputeDoubleTable();
var tt = SjclAes.ComputeTrippleTable(dt);
var sbox = SjclAes.ComputeSboxTable(dt, tt);
var table = SjclAes.ComputeInverseSboxTable(sbox);
// Test data is generated with SJCL sources
Assert.That(table.Length, Is.EqualTo(256));
Assert.That(table[0x00], Is.EqualTo(0x52));
Assert.That(table[0x01], Is.EqualTo(0x09));
Assert.That(table[0x02], Is.EqualTo(0x6a));
Assert.That(table[0x7f], Is.EqualTo(0x6b));
Assert.That(table[0x80], Is.EqualTo(0x3a));
Assert.That(table[0xfe], Is.EqualTo(0x0c));
Assert.That(table[0xff], Is.EqualTo(0x7d));
// Every value should be exactly once
Array.Sort(table);
for (var i = 0; i < 256; ++i)
{
Assert.That(table[i], Is.EqualTo(i));
}
}