1. CMSC 426/626 Notes Krishna M. Sivalingam UMBC [email_address] 2. Based on: Cryptography and Network Security Third Edition by William Stallings Lecture slides by Lawrie…

1.Electronic Codebook Book (ECB)• message is broken into independentblocks which are encrypted• each block is a value which is substituted,like a codebook, hence name•…

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CSIS 5857 Message Authentication Codes CSCI 5857: Encoding and Encryption 1 Outline Message Authentication Code Adding a key to an existing hash function Prefix/postfix MAC…