Post-quantum cryptography visualization

Post-quantum infrastructure built beyond Q-Day

Infrastructure for sovereign-grade settlement, tokenisation rails, and regulated digital-asset ecosystems, secured by post-quantum cryptography. Quantum-resistant by design. Compliant by construction.

FIPS 20301

ML-KEM

FIPS 20402

ML-DSA

FIPS 20503

SLH-DSA

NIST LEVEL 504

256-bit PQ security

Why Post-Quantum Cryptography matter

Tokenised assets, stablecoin settlement and blockchain infrastructure depend on cryptography. As institutional finance moves on-chain, the industry faces a transition toward post-quantum cryptography, driven by emerging quantum threats and harvest-now, decrypt-later (HNDL) attack models.

e23 develops post-quantum infrastructure for digital asset markets, combining NIST-standardised cryptography, crypto-agility frameworks and quantum-resistant security designed for long-term financial systems.

Post-Quantum Cryptography stack

Security

Quantum-resistant by default

Built on lattice, hash, and code-based cryptography, designed to remain secure and withstand CRQC-era attacks.

Migration

Hybrid key exchange

Compose ML-KEM with X25519 in a single handshake. Classical security guarantees layered with post-quantum protection.

Agility

Crypto-agile architecture

Future-ready cryptographic infrastructure that evolves as NIST standards and post-quantum cryptography requirements mature.

Performance

Hardware-accelerated

AVX2, NEON, and constant-time implementations across x86, ARM, and RISC-V. Sub-millisecond key generation on commodity silicon.

Longevity

Harvest-now defense

Defends against harvest-now, decrypt-later threats by protecting sensitive financial and blockchain data against quantum attacks.

Integration

Drop-in SDKs

TypeScript, Rust, Go, and Python SDKs for seamless post-quantum integration across applications, APIs and blockchain infrastructure.

Standardised. Audited. Production-ready.

We implement the full NIST PQC suite plus selected stateful and code-based alternatives. Each primitive is constant-time, side-channel hardened, and independently audited.

ML-KEM

FIPS 203
Key Encapsulation
Module-LWE
512 · 768 · 1024

ML-DSA

FIPS 204
Digital Signature
Module-LWE / SIS
44 · 65 · 87

SLH-DSA

FIPS 205
Hash-Based Signature
SHA-2 / SHAKE
128 · 192 · 256

Falcon

ROUND 4
Compact Signature
NTRU lattice
512 · 1024

One handshake.
Two security models.

Hybrid ML-KEM + X25519 negotiates classical and post-quantum shared secrets in a single round trip. Compatible with TLS 1.3 extension space, deployable behind existing termination layers.

hybrid-handshake.ts
import { MLKEM, X25519, Hybrid } from "@e23/pqc";

const kem  = await MLKEM.create("ML-KEM-1024");
const ecdh = await X25519.create();

const suite = Hybrid.compose(kem, ecdh);
const { publicKey, secretKey } = await suite.keypair();

const { ciphertext, sharedSecret } =
  await suite.encapsulate(publicKey);

// 256-bit post-quantum security · NIST Level 5
// classical fallback: X25519 (Curve25519)
—Days
—Hours
—Min
—Sec

Estimated runway until cryptographically-relevant quantum computers are widely projected to break classical asymmetric cryptography.

0

Q-Day risk horizon per NIST guidance

0yr+

Sensitive financial data lifetime

<0ms

ML-KEM-768 keygen on commodity CPU

0.0%

Wire compatibility with TLS 1.3