TechBi Labs · Interactive Exhibit
A journey through 2,000 years of secret writing — from Julius Caesar's shift cipher to lattice-based post-quantum cryptography. Scroll to explore each era.
The Birth of Secret Writing
Julius Caesar communicated with his generals using a simple shift cipher — each letter replaced by one three positions ahead in the alphabet. Revolutionary for its time, trivial by modern standards.
The Government Standard
The Data Encryption Standard was adopted by NIST and used by banks worldwide. With a 56-bit key, it seemed unbreakable — until the EFF's Deep Crack machine cracked it in 22 hours.
The Unbreakable Standard
The Advanced Encryption Standard (Rijndael) won a global competition. AES-256 has a keyspace larger than the number of atoms in the observable universe. No practical attack exists.
The Public Key Revolution
Rivest, Shamir and Adleman solved the key distribution problem. RSA lets strangers share secrets over an open channel — the foundation of HTTPS and modern internet security.
Elliptic Curves and the Mobile Era
Elliptic Curve Cryptography achieves the same security as RSA with much smaller keys — crucial for mobile devices, TLS, and Bitcoin's digital signatures.
We Are Here — Preparing for Q-Day
NIST standardized CRYSTALS-Kyber and CRYSTALS-Dilithium in 2024. These lattice-based algorithms resist attacks from quantum computers. The race to migrate begins now.