public void ShouldThrowArgumentExceptionIfGetSubArrayDimension1IndexLtZero()
{
var subject = new Array3D(_working3DArray);
Assert.Throws(
typeof(ArgumentException),
() => subject.GetSubArray(-1)
);
}
public void ShouldPullOutProperSubArrayStatic()
{
var subArray = Array3D.GetSubArray(_working3DArray, 1);
var expectedResults = new Array2D(new byte[3, 4]
{
{ 13, 14, 15, 16 },
{ 17, 18, 19, 20 },
{ 21, 22, 23, 24 }
});
Assert.AreEqual(expectedResults.Array, subArray);
}
private void Decrypt(byte[,] block)
{
var roundKey = Array3D.GetSubArray(_keySchedule.Schedule, _keySchedule.Rounds);
var blockCount = _keySchedule.BlockCount;
KeyAddition(block, roundKey, blockCount);
Substitution(block, RijndaelBoxes.Si, blockCount);
ShiftRow(block, 1, blockCount);
for (int round = _keySchedule.Rounds - 1; round > 0; round--)
{
roundKey = Array3D.GetSubArray(_keySchedule.Schedule, round);
KeyAddition(block, roundKey, blockCount);
InvMixColumn(block, blockCount);
Substitution(block, RijndaelBoxes.Si, blockCount);
ShiftRow(block, 1, blockCount);
}
roundKey = Array3D.GetSubArray(_keySchedule.Schedule, 0);
KeyAddition(block, roundKey, blockCount);
}
private void Encrypt(byte[,] block)
{
var roundKey = Array3D.GetSubArray(_keySchedule.Schedule, 0);
var blockCount = _keySchedule.BlockCount;
KeyAddition(block, roundKey, blockCount);
for (int round = 1; round < _keySchedule.Rounds; round++)
{
Substitution(block, RijndaelBoxes.S, blockCount);
ShiftRow(block, 0, blockCount);
MixColumn(block, blockCount);
roundKey = Array3D.GetSubArray(_keySchedule.Schedule, round);
KeyAddition(block, roundKey, blockCount);
}
Substitution(block, RijndaelBoxes.S, blockCount);
ShiftRow(block, 0, blockCount);
roundKey = Array3D.GetSubArray(_keySchedule.Schedule, _keySchedule.Rounds);
KeyAddition(block, roundKey, blockCount);
}
public void ShouldReturnNullOnExceptionStaticSubArray()
{
var result = Array3D.GetSubArray(_working3DArray, -1);
Assert.IsNull(result);
}
