Course

COM-401: Cryptography and security

Lectures in this course (57)

Post-Quantum Cryptography: Formalism and Access Control

Covers the formalism of post-quantum cryptography and access control mechanisms.

Explores message authentication codes and their formalism, with a focus on mobile telephony, covering topics like misuse attacks, security notions, and GSM architecture.

Bluetooth Security: Pairing Protocols

Explores Bluetooth security, focusing on pairing protocols, key recovery, and active attacks in Bluetooth 2.0 and the enhanced Bluetooth 2.1 with Secure Simple Pairing (SSP).

Symmetric Encryption: Physical Limits

Explores the physical limits and security aspects of symmetric encryption schemes, including energy consumption, key recovery, and distinguisher security.

Cryptographic Security Fundamentals

Covers cryptographic security fundamentals, including collision search algorithms, public-key cryptography, and risks of underestimating collision attacks.

Diffie-Hellman Cryptography: Basics

Introduces the basics of Diffie-Hellman cryptography, covering algorithms, monoids, and key agreement protocols.

Prime Numbers and Primality Testing

Covers prime numbers, RSA cryptography, and primality testing, including the Chinese Remainder Theorem and the Miller-Rabin test.

Public-Key Cryptography: Key Exchange and Signatures

Explores public-key cryptography, key exchange, and digital signatures, discussing practical applications and security mechanisms.

Generator of a Group

Explores checking a generator of a group, the Diffie-Hellman key exchange, and cryptographic algorithms.

Legendre and Jacobi Symbols: RSA Cryptography

Explores Legendre and Jacobi symbols, quadratic residuosity, element orders, and RSA Cryptography complexities.

Public-Key Cryptography: ECDSA and BLS

Explores ECDSA and BLS signature schemes, NFC credit card payment, and breaking RSA and DH cryptography.

Diffie-Hellman Cryptography: Key Exchange & ElGamal

Covers Diffie-Hellman key exchange, DDH problem, ElGamal cryptosystem, and security implications.

Bluetooth Security Protocols

Explores Bluetooth security protocols, focusing on secure pairing and preventing active attacks.

Public-Key Cryptography: Fundamentals and Applications

Explores public-key cryptography, covering key exchange, signature schemes, and real-world applications like the Signal protocol.

Diffie-Hellman Cryptography: Key Exchange and ElGamal Encryption

Covers the Diffie-Hellman key exchange protocol and the ElGamal public-key cryptosystem.

Cryptography Fundamentals

Covers the basics of cryptography, including key concepts, tools, and protocols used for secure communication and data protection.

Security Protocols in Practice

Explores the practical implementation of security protocols using the biometric passport as a case study, covering vulnerabilities, TLS evolution, and ChaChaPoly encryption.

Public-Key Cryptography: ECDSA and Security

Explores RSA, ElGamal, ECDSA, and security in public-key cryptography.

Cryptography: Ancient Techniques to Modern Systems

Explores ancient cryptography techniques, the Enigma machine, Kirchhoff's principle, scalability in cryptography, Moore's Law, and a thought experiment on breaking a 128-bit key.

RSA Cryptography: Primality Testing and Quadratic Residues

Explores RSA cryptography, covering primality testing, quadratic residues, and cryptographic applications.