BROWSER-ONLY · EDUCATIONAL
Future demonstrations will stay inside this visitor's browser. They will explain cryptographic ideas without attacking systems, accounts, networks, or files.
LEARNING EXPERIENCES
CHOOSE A LAB
All eight labs are available: operate historical ideas, inspect teaching models, and explore modern cryptographic tradeoffs safely.
FROM CAESAR TO XOR
Ancient Origins – Early Computing
Caesar shifts, ROT13, substitution, and the XOR idea.
ENTER LAB →02AVAILABLEENIGMA MACHINE
1920s–1940s
Rotors, plugboards, daily settings, and wartime cryptanalysis.
ENTER MACHINE →03AVAILABLEDES TO AES
1970s–Present
Operate real DES and AES teaching transformations.
ENTER LAB →04AVAILABLEPUBLIC KEY REVOLUTION
1970s–Present
Diffie–Hellman, RSA, signatures, and public/private key pairs.
ENTER EXPERIENCE →05AVAILABLEPGP & THE CRYPTO WARS
1991–2000s
Phil Zimmermann, PGP, keyrings, email privacy, and export controls.
ENTER EXPERIENCE →06AVAILABLEPASSWORD GRAVEYARD
1990s–Present
Unsafe storage, MD5, SHA-1, salts, and modern password hashing.
ENTER EXPERIENCE →07AVAILABLEBROKEN CRYPTO
1990s–2010s
WEP, weak randomness, Debian OpenSSL, and Dual_EC_DRBG.
ENTER EXPERIENCE →08AVAILABLEPOST-QUANTUM CRYPTOGRAPHY
Present & Future
Quantum risk, migration planning, and the ML-KEM standard.
ENTER EXPERIENCE →REAL LOCAL COMPUTATION
YOUR PASSWORD. YOUR HARDWARE. YOUR PRIVACY.
Generate real candidates and compare SHA-256 hashes using your own CPU, WebGPU or both. Invented passwords only; all computation stays in your browser.