Classical Cryptography Simulator

Module 4: Authentication, Hash Functions & Security

Explore authentication mechanisms, hash functions, message authentication codes, digital signatures, and secure authentication protocols. Learn about SHA algorithms, HMAC, CMAC, and modern security systems.

Authentication Fundamentals
Authentication Requirements
Explore fundamental authentication requirements including identification, authentication, authorization, and accountability. Understand the four pillars of secure access control.
Open Simulation
Authentication Methods
Authentication Functions
Learn about various authentication functions including password-based, token-based, biometric, and multi-factor authentication mechanisms.
Open Simulation
Message Integrity
Message Authentication Code (MAC)
Interactive simulation of MAC generation and verification. Learn about HMAC, CMAC, and message integrity verification techniques.
Open Simulation
Hash Fundamentals
Hash Functions
Explore cryptographic hash functions including SHA family, MD5, and collision resistance. Learn about one-way functions and their security properties.
Open Simulation
Message Authentication
HMAC & CMAC
Interactive simulation of Hash-based MAC and Cipher-based MAC. Compare HMAC and CMAC implementations with real-time examples.
Open Simulation
Message Authentication
HMAC Algorithm
Complete HMAC implementation with detailed step-by-step computation, security analysis, and interactive simulation.
Open Simulation
Authentication
Digital Signatures
Learn digital signature creation and verification. Understand RSA, DSA, and ECDSA with step-by-step mathematical operations.
Open Simulation
Digital Signatures
DSS - Digital Signature Standard
Complete DSS implementation with DSA algorithm. Generate keys, create digital signatures, and verify authenticity with detailed mathematical steps.
Open Simulation
Public-Key Cryptography
ElGamal Cryptosystem
Interactive ElGamal public-key cryptosystem simulation. Learn about discrete logarithm problems, key generation, encryption, and decryption.
Open Simulation
Security Protocols
Authentication Protocols
Explore secure authentication protocols including SSL/TLS, Kerberos, and OAuth. Understand protocol design and security analysis.
Open Simulation
Authentication Protocols
Kerberos Authentication
Complete Kerberos authentication protocol simulation with detailed message flow, ticket exchange, and security analysis.
Open Simulation
Authentication Protocols
Advanced Kerberos
Enhanced Kerberos simulation with particle effects, trails, and advanced animations.
Open Simulation
Authentication Protocols
X.509 Certificates
Comprehensive X.509 certificate structure analysis, chain of trust visualization, and certificate revocation processes.
Open Simulation