A framework agnostic encryption library
ION Tools - utilities to make working with the ION network and using ION DIDs easy peasy lemon squeezy
HMAC-SHA256 signing and timing-safe verification for webhooks, with optional replay protection. Zero dependencies (Node crypto only).
MSR JavaScript Cryptography Library
Foundation SDK for embedding Reeve surfaces (Studio, Chat, CRM, Sign, …) — auth, theme, brand, postMessage, surfaces.
Security module - CVE fixes, input validation, path security
A universal JavaScript HMAC-SHA256 hashing algorithm (browsers + Node.js).
PKCE challenge & verifier generator for node, any algorithm and digest supported
Shared contracts for Agora services (zod schemas + TS types)
The Telemetry Client is an NPM package available as `@guardian/user-telemetry-client` to make sending events to the backend simple.
TypeScript API client for LDAP-REST
pbkdf2-sha512 is a PBDKF2 implementation using HMAC SHA512
Insomnia template tag for HMAC signature of value or request body
HMAC-SHA256 origin trust header for Facet enforcement. Sign outbound origin requests at the edge or Terminal; verify on the backing origin to refuse direct-bypass traffic. Workers, Deno, and Node compatible (Web Crypto only).
Agent-scoped MCP Portal server and TypeScript helpers for composable upstream MCP tools.
Angular HTTP over Web Workers — off-main-thread HTTP pipelines with configurable interceptors, WebCrypto security, and pluggable serialization
A collection of TypeScript + JavaScript tools and libraries for DeFi Blockchain developers to build decentralized finance for Bitcoin
Kuzzle plugin to log-in users
Drop-in replacement for @intercom/messenger-js-sdk that mounts a SupportWire widget.
HMAC authentication strategy for Passport
Javascript implementation of Fernet symmetric encryption https://github.com/kr/fernet-spec
n8n crypto tools for encryption and decryption operations
GENERATE SECRET AND HMAC VERIFY
JavaScript cryptographic utilities for OpenSSL-WebCrypto compatibility including PEM/X509-JWK converter.