Rijndael Algorithm: Encryption and Decryption Process, Study notes of Electrical and Electronics Engineering

Download Rijndael Algorithm: Encryption and Decryption Process and more Study notes Electrical and Electronics Engineering in PDF only on Docsity! 1 Rijndael ECE 746: Lecture 2 (cont) Add Round Key Byte Sub Shift Row Mix Column Add Round Key Encryption Byte Sub Shift Row Add Round Key Nr-1 timesRound Key[i] i:=i+1 Round Key[0] i:=1 i<Nr-1? Round Key[Nr] 2 Add Round Key Add Round Key Inv Mix Column Inv Shift Row Inv Byte Sub Decryption (1) Inv Shift Row Inv Byte Sub Add Round Key Nr-1 times Round Key[i] i:=i-1 Round Key[Nr] i:=Nr-1 i>1? Round Key[0] Properties of component transformations (1) Byte Sub Shift Row ≡ Shift Row Byte Sub Inv Byte Sub Inv Shift Row ≡ Inv Shift Row Inv Byte Sub