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Learning Paths

Structured learning progressions that guide you from classical cipher basics to advanced quantum cryptography. Each path builds on the previous, with hands-on challenges and quizzes.

Beginner Path: Classical Cryptography

Start with the Caesar cipher and progress through substitution ciphers, transposition ciphers, and XOR encryption. No prior knowledge required.

Intermediate Path: Modern Cryptography

Explore symmetric and asymmetric encryption, hash functions, digital signatures, and public key infrastructure used in modern security systems.

Advanced Path: Quantum Cryptography

Master quantum key distribution (QKD), the BB84 photon polarization protocol, E91 entanglement-based encryption, and post-quantum cryptographic algorithms.

Network Defense Path

Apply cryptographic concepts to real-world network security scenarios, firewalls, intrusion detection, and defense strategies against cyber attacks.