Expected 212-81 Exam Topics, as suggested by Eccouncil :

• Module 1: Information Theory Cryptography Concepts/ Multi-Alphabet Substitution
• Module 2: Introduction and History of Cryptography/ Breaking the Vigenère Cipher
• Module 3: Symmetric Cryptography & Hashes/ Single Substitution Weaknesses
• Module 4: Symmetric Block Cipher Algorithms/ Basic Facts of the Feistel Function
• Module 5: International Data Encryption Algorithm (IDEA)/ History of Cryptography
• Module 6: Number Theory and Asymmetric Cryptography/ Advanced Encryption Standard (AES)
• Module 7: Propagating Cipher-Block Chaining (PCBC)/ Naor-Reingold and Mersenne Twister Pseudorandom Function
• Module 8: Server-based Certificate Validation Protocol/ Classification of Random Number Generator
• Module 9: Shiva Password Authentication Protocol (S-PAP)/ Challenge-Handshake Authentication Protocol (CHAP)
• Module 10: Point-to-Point Tunneling Protocol (PPTP)/ National Security Agency and Cryptography
• Module 11: Cracking Modern Cryptography: Ciphertext-only and Related-key Attack/ Cracking Modern Cryptography: Chosen Plaintext Attack
• Module 12: Steganography Implementations/ Example of Symmetric Stream Ciphers: RC4
• Module 13: Birthday Paradox: Probability/ Mono-Alphabet Substitution
• Module 14: Cracking Modern Cryptography/ Example of Symmetric Stream Ciphers: PIKE