Cryptography

Mathematical techniques for secure communication and data protection.

Parent category: Computer Science

Articles (5)

• How TLS Works: The HTTPS Handshake Explained
  TLS encrypts web traffic using a handshake that authenticates the server with a certificate and agrees on fresh keys. See how HTTPS keeps connections private.
• Zero-Knowledge Proofs
  Zero-knowledge proofs: prove a statement is true without revealing why — interactive protocols, zk-SNARKs, blockchain rollups, and private logins explained.
• Bitcoin and Proof of Work
  How Bitcoin achieves consensus without a central authority: hash chains, mining difficulty, and the energy cost that secures double-spend resistance.
• Hash Functions
  Deterministic functions that map arbitrary data to fixed-size digests, used for integrity checking, password storage, and digital signatures.
• Public-Key Cryptography
  Cryptography with paired public and private keys, enabling encryption and digital signatures without shared secrets.

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