AES Guest Lecturer

More documents

Recommendations

Info

Attacks on AES • Differential Cryptanalysis – Study of how differences in input affect differences in output. – Greatly reduced due to high number of rounds. • Linear Cryptanalysis – Study of correlations between input and output. – SBOX & Mix Columns are designed to frustrate Linear Analysis
Attacks on AES • XSL Cryptanalysis – A new attack method developed in 2002, Analyses ciphers internal workings and generates a system on nonlinear simultaneous equations. – AES analyses to 8000 equations and 1600 unknowns. – It is arguable if this can be solved any faster than a brute force attack.
Page 1 and 2: AES Advanced Encryption Standard CS
Page 3 and 4: AES Block • AES has a fixed block
Page 5 and 6: AES Key or 192 bits (6 words) 11223
Page 7 and 8: Security • The key security featu
Page 9 and 10: AES Algorithm KeyExpansion(byte key
Page 11 and 12: - Sample Key: AES Algorithm Key Exp
Page 13 and 14: AES Algorithm Key Expansion w[0] 11
Page 15 and 16: Con - round Constants Powers of x =
Page 21 and 22: AES Algorithm KeyExpansion(byte key
Page 23 and 24: AES Algorithm AddRoundKey State 41
Page 25 and 26: AES Algorithm SubBytes • SubBytes
Page 27 and 28: AES Algorithm SubBytes X Y 0 1 2 3
Page 29 and 30: AES Algorithm SubBytes State 50 10
Page 31 and 32: AES Algorithm ShiftRows • Simple
Page 33 and 34: AES Algorithm - MixColumns • This
Page 35 and 36: AES Algorithm - InvMixColumns a ’
Page 37 and 38: Sample Conversions Input String Key
Page 39 and 40: Larger Plain Texts Encryption • H
Page 41 and 42: Larger Plain Texts Encryption Ciphe
Page 43: Padding • If plaintext messages a
Page 47 and 48: Types of Side Channel Attacks • T
Page 49 and 50: Joan Daemen & Vincent Rijmen’s AE
Page 51 and 52: Joan Daemen & Vincent Rijmen’s AE
Page 53 and 54: References Security and Attacking A
Page 55: References Applications / Implement

AES Guest Lecturer

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?