CNS

CNS

1. Encryption

   • Perfect Cipher
     • One Time Pad
   • Attack Models
     • Eavesdropping
     • Known Plaintext
     • Chosen Plaintext
     • Chosen Ciphertext
     • Adaptive Chosen Plaintext
   • Stream Ciphers
     • A5
     • WEP
     • RC-4
   • Block Ciphers
     • DES
     • 3-DES
     • AES
     • Modes of Operation
       • ECB Elctronic Code Book
       • CBC Cipher Block Chaining
       • PCBC Propagating Cipher Block Chaining
       • CFB Cipher FeedBack
       • OFB Output FeedBack
       • CTR Counter Mode
   • Public-Key Cryptography
     • Diffie-Hellman
       • Man-in-the-middle attack
     • Public-Key Cryptography Standard(PKCS)
     • Optimal Asymmetric Encryption Padding (OAEP)
     • ElGamal
     • RSA
       • RSA Attacks

2. Data Integrity & Authentication

   • MAC
   • Birthday Paradox
     • Birthday attack
   • Cryptographic Hash Functions
     • MD family
     • SHA family
     • HMAC

3. Crypotgraphic Protocols & Standards

   • IPSec
     • Authentication Header (AH)
     • Encapsulating Security Payload (ESP)
     • Tunnel Mode
     • Transport Mode
   • SSL/TLS
     • Heartbeat & Heartbleed
     • POODLE Attack
   • SSH
   • Firewalls

4. Digital Signature

   • Forgery
     • Existential Forgery
     • Selective Forgery
     • Universal forgery
   • DSS
     • DSA
     • SHA

5. User Authentication

   • Authentication by symmetric key
     • Reflection Attack
   • Needham-Schroeder
     • Attacking N.-S. Protocol
     • Denning and Sacco
   • Authentication with trusted server
     • 3 attack types
   • Lamport’s Hash
   • Authentication EKE: Encrypted Key Exchange
     • SPEKE (Simple Password Exponential Key Exchange)
     • PDM (Password Derived Moduli)
   • Kerberos
   • X.509
   • PKI: Public Key Infrastructure

6. Randomness, Number Theory

   • Random Number Generator (RNG)
   • Pseudorandom Number Generator (PRNG)