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Cryptology Academy · Lesson

Dolev-Yao Attacker Model & Symbolic Crypto

Model a cryptographic protocol under Dolev-Yao assumptions.

The Dolev-Yao Model

Proposed by Danny Dolev and Andrew Yao in 1983, the Dolev-Yao model is the standard adversary model for symbolic protocol analysis. The attacker controls the entire network.

Attacker Capabilities

The Dolev-Yao attacker can: intercept any message, store messages, replay old messages, forge new messages from known components, but cannot break the underlying crypto primitives.

All lessons in this course

  1. Why Informal Proofs Are Not Enough
  2. Dolev-Yao Attacker Model & Symbolic Crypto
  3. ProVerif: Automated Protocol Verification
  4. Tamarin & Computational Proofs
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