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The Diffie-Hellman key exchange stands as one of the most revolutionary breakthroughs in modern cryptography, fundamentally changing how secure communications are established across insecure networks.
DSA was the U.S. government's answer to a simple question: how do you prove a message came from you, without RSA's patent? Learn how the Digital Signature Algorithm works, and why a single reused number sank Sony's PS3 security.
Elliptic Curve Cryptography (ECC) is a powerful and efficient form of public-key cryptography that leverages the mathematical properties of elliptic curves over finite fields.
The Edwards-curve Digital Signature Algorithm (EdDSA) is a modern public-key signature scheme that has gained significant traction in the world of cryptography for its high levels of security and efficiency.
ElGamal Encryption: A Comprehensive Guide to Public-Key Cryptography
McEliece has survived over 45 years of cryptanalysis without ever being broken — and it's one of NIST's chosen post-quantum standards. Learn how hiding an error-correcting code behind scrambling matrices creates a public-key system quantum computers can't crack.
Before Kyber, before LWE was even named, NTRU showed that ordinary polynomial multiplication in the right ring could resist quantum attacks. Learn how NTRU hides a fast decryption trick behind a public convolution product.
What if you could add two numbers together without ever decrypting them? Paillier encryption makes that possible — the mathematical trick behind private vote tallying and secure multi-party computation.
RSA is the algorithm that made public-key cryptography practical for the world. This comprehensive guide explores how RSA works, why it's secure, where it's used, and where it's headed as quantum computing looms.
Schnorr signatures are what DSA might have been if a 20-year patent hadn't gotten in the way. Simpler, provably secure, and now at the heart of Bitcoin's Taproot upgrade — here's how they work.
