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Rijndael Algorithm: Encryption and Decryption Process - Prof. Krzysztof Gaj, Study notes of Electrical and Electronics Engineering

George Mason University (GMU)Electrical and Electronics Engineering

Prof. Krzysztof Gaj

An overview of the rijndael encryption algorithm, detailing the steps involved in both encryption and decryption processes. The algorithm consists of several rounds, each including subbytes, shiftrows, addroundkey, and mixcolumns transformations. The document also covers the properties of these component transformations and their inverse operations.

Typology: Study notes

Pre 2010

Uploaded on 02/12/2009

koofers-user-9cb 🇺🇸

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Download Rijndael Algorithm: Encryption and Decryption Process - Prof. Krzysztof Gaj and more Study notes Electrical and Electronics Engineering in PDF only on Docsity! 1 Rijndael ECE 746: Lecture 2 (cont) AddRoundKey SubBytes ShiftRows MixColumns AddRoundKey Encryption SubBytes ShiftRows AddRoundKey Nr-1 timesRoundKey[i] i:=i+1 RoundKey[0] i:=1 i<Nr-1? RoundKey[Nr] 2 AddRoundKey AddRoundKey InvMixColumns InvShiftRows InvSubBytes Decryption (1) InvShiftRows InvSubBytes AddRoundKey Nr-1 times RoundKey[i] i:=i-1 RoundKey[Nr] i:=Nr-1 i>1? RoundKey[0] Properties of component transformations (1) SubBytes ShiftRows  ShiftRows SubBytes InvSubBytes InvShiftRows  InvShiftRows InvSubBytes

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Rijndael Algorithm: Encryption and Decryption Process - Prof. Krzysztof Gaj, Study notes of Electrical and Electronics Engineering

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