Applied Cryptography

URL study guide

Description

• Public-key infrastructure (PKI) including trust models and validation models for X.509 and PGP
• Cryptographic aspects of secure communication protocols including TLS / SSL, IPsec
• Security proofs for real world primitives (the random oracle model),
• Cryptographic aspects of anonymity networks including mixnets, and Tor,
• Cryptographic aspects of private online communication like OTR, or Signal,
• Cryptographic aspects of e-cash including Bitcoin,
• Post-quantum cryptography (only introduction)
• Other recent topics in real world cryptography (e.g., we covered DNSSEC, kleptography, multi-party computation, and password hashing in previous years).

Objectives

• explain the cryptography commonly used in modern cryptosystems in their own words,
• explain the interaction between cryptographic systems and higher protocol levels in their own words,
• select a suitable cryptographic system for a given situation, independently,
• analyse the security of a cryptographic system and present the results to others,
• list the properties as well as known problems and pitfalls for common cryptographic systems.

Method of Assessment