🔒 HASHING PROTOCOL — SHA-256 FIPS 180-4
Secure hash producing 256-bit (32-byte) digest from arbitrary input. Deterministic one-way function. Any change to input radically alters output.
🔒 ZK CIRCUIT — SIMPLIFIED PROOF EXPERIMENTAL
Zero-knowledge proofs allow proving knowledge of a secret without revealing the secret itself. Prover commits to a value, verifier challenges, prover responds.
🔒 ENCRYPTION SPEC — AES-256-GCM NIST SP 800-38D
Advanced Encryption Standard with Galois/Counter Mode. Provides both confidentiality and authenticity via authenticated encryption. 256-bit key, 96-bit nonce, 128-bit auth tag.
🔒 IDENTITY TOKEN — EdDSA / Ed25519 RFC 8032
Edwards-curve Digital Signature Algorithm. 32-byte keys, 64-byte signatures. Uses twisted Edwards curves for fast, compact signatures. ~10× faster than RSA-2048.