Cryptography

The Mathematics used to secure data.

Metauni Lectures

• Cryptography Seminar 1 - Foundations
• Cryptography Seminar 3 - Protocols

Vulnerabilities

• CA Compromise
• Key Compromise
• Flawed Cryptographic Algorithm Implementation
• Outdated Algorithms
• Weak Random Number Generation

Attacks

• Side Channel Attack
• SSL Stripping
• SSL Downgrade
• Collision Attack
• Birthday Attack
• Pass The Hash Attack
• Wiener’s Attack
• Chinese Remainder Theorem

Concepts

Algorithm Types

• Cipher
  • Block-Cipher
  • Stream-Cipher
• Key Exchange Algorithms
• Hashing Algorithms
• Signature Algorithm
• Key Stretching Algorithms
• Consensus Algorithm

Core Concepts

• Key
  • Public Key
  • Private Key
• Keygen
• Cryptographic Threat Models
• Secrecy
• Integrity
• Authenticity
• Kerckhoff’s Principle
• Shannon’s Maxim
• Symmetric Cryptography
  • Cipher
• Asymmetric Cryptography
• Digital Signature
• PKC
  • PKCS
• Salting
• Peppering
• ECC
• Message Authentication Code
• TLS
• PKCS

Mathematical Cryptography

Notions of Security

• IND-CPA
• IND-CCA
• Semantic Security
• Information-Theoretic Security

Modularity

• Modulo
• Legendre Symbol
• Quadratic Residue
• Quadratic Reciprocity