Tools

Post-Quantum Crypto (NIST)

Browser-only demos for NIST-standardized post-quantum algorithms.

Educational demo - don't copy/paste into production

All cryptography runs locally in your browser. Keys and plaintext never leave your device, but this is still a simplified demo.

NIST standardized algorithms

These tools cover ML-KEM (formerly CRYSTALS-Kyber), ML-DSA (formerly CRYSTALS-Dilithium), and SLH-DSA (formerly SPHINCS+). All demos run locally in your browser.

ML-KEM (FIPS 203) is a key encapsulation mechanism, not direct encryption.
ML-DSA (FIPS 204) and SLH-DSA (FIPS 205) are digital signature schemes.

ML-KEM

Key encapsulation + AES-GCM

Generate keys, encapsulate a shared secret, and encrypt a short message with AES-GCM.

ML-DSA

Lattice-based signatures

Sign a message, verify it, and watch verification fail after tampering.

SLH-DSA

Hash-based signatures

Explore larger signatures and slower signing with SPHINCS+ variants.

Learn

Plain-language notes

Understand the naming, tradeoffs, and privacy promises behind the demos.

Migration

Operational guidance

What PQC adoption means for protocols like HTTPS, SSH, and SMTPS.