Zero-dependency Node.js CAPTCHA generator - PNG/SVG/JPEG image with HMAC-SHA256 signed token & TTL. Stateless pure TypeScript alternative to svg-captcha and captcha-canvas.

A pure JS implementation SHA256.

eSewa ePay v2 (Nepal) payment gateway toolkit over Web Crypto — HMAC-SHA256 signing, form building, response verification and transaction status checks. Zero-dependency, isomorphic (Node, edge, browser).

SHA256 wrapper for browsers that prefers `window.crypto.subtle` but will fall back to a pure JS implementation in @aws-crypto/sha256-js to provide a consistent interface for SHA256.

Verify Krova Cloud outbound webhook signatures — HMAC-SHA256, constant-time comparison, replay protection. Express, Next.js & Fastify helpers. Zero runtime dependencies.

SHA-256, HMAC and PBKDF2 implementation with typed arrays for modern browsers and Node.js

OpenDPP webhook event types + a zero-dependency, constant-time HMAC-SHA256 signature verifier for inbound OpenDPP webhooks (ESM, Node >=26).

CSRF protection middleware for NextRush — Signed Double-Submit Cookie pattern with HMAC-SHA256

Encrypts app-owned local data under Application.persistentDataPath: player save files, cached config JSON, downloaded level/song data, and specific PlayerPrefs entries. AES-256-CBC + HMAC-SHA256 (encrypt-then-MAC), per-device key custody via iOS Keychain

Zero-dependency mRPC request encoder and HMAC-SHA256 response validator

Audited & minimal 0-dependency JS implementation of SHA, RIPEMD, BLAKE, HMAC, HKDF, PBKDF & Scrypt

Node.js client for Monoverse, the AI sales assistant: pushes your catalog and site content over the signed ingest protocol (HMAC-SHA256).

SHA-256, HMAC-SHA256, SHA-512 and HMAC-SHA512 for AssemblyScript.

Password hashing & verification — PBKDF2-HMAC-SHA256 (OWASP iterations) with a portable PHC string, a zxcvbn-style strength estimator, k-anonymity breach check, policy evaluator and cryptographic passphrase/password generators. Isomorphic over Web Crypto.

Provably fair RNG for Octane RGS — HMAC-SHA256 float generation and verification

NetSuite API for n8n using TBA (OAuth1 HMAC-SHA256)

Binance REST client for pi — 현물(Spot)·USDT-M 선물 시세·차트·잔고·주문 (HMAC SHA256, live/testnet). 출금·이체는 포함하지 않음.

Provably fair random number generation: HMAC-SHA256 byte streams, hash chains and hash series.

TypeScript SDK for the BloFin exchange (perpetuals CEX): REST v1, WebSocket, HMAC-SHA256 signing

Creates nessasary HTTP headers for request to the AWS API. Uses AWS4-HMAC-SHA256