Cryptanalyses on a Merkle-Damgård Based MAC

Explore cryptanalysis techniques for Merkle-Damgård based Message Authentication Codes (MACs) in this conference talk from Eurocrypt 2012. Delve into the fundamentals of message authentication, hash functions, and secret prefix security proofs. Examine attack frameworks, including previous and generic approaches, while understanding basic ideas, internal cohesion, and range simulation. Learn about the almost universal forgery attack, its potential applications, and the diamond structure used in generic distinction. Gain insights into future research directions in the field of cryptanalysis on MACs.

Intro
Summary
Outline
Message Authentication Code
Hash Function
Secret Prefix
Security Proof
Attack Framework
Previous Approach
Generic Approach Results
Basic Idea
Internal Cohesion
Range Simulation
Attack Procedure
Almost universal forgery attack
The idea
Potential applications
Diamond structure
Generic distinction
Future research directions