public AESBlock Decrypt(AESBlock chipherBlock)
{
AESBlock outputBlock = new AESBlock(chipherBlock);
for (int r = 0; r < ROUND_NO; ++r)
{
outputBlock.AddRoundKey(roundKeys[ROUND_NO - r]);
if (r > 0)
{
outputBlock.inverseMixColumns();
}
outputBlock.InverseShiftRows();
outputBlock.SubBytesInverse();
}
outputBlock.AddRoundKey(roundKeys[0]);
return(outputBlock);
}
public AESBlock Encrypt(AESBlock inputBlock)
{
AESBlock chipherBlock = new AESBlock(inputBlock);
chipherBlock.AddRoundKey(roundKeys[0]);
for (int r = 0; r < ROUND_NO; ++r)
{
chipherBlock.SubBytesForward();
chipherBlock.ShiftRows();
if (r < ROUND_NO - 1)
{
chipherBlock.MixColumns();
}
chipherBlock.AddRoundKey(roundKeys[r + 1]);
}
return(chipherBlock);
}