HMAC-based (HOTP) and Time-based (TOTP) One-Time Password manager. Works with Google Authenticator for Two-Factor Authentication.

A signatures library based on Node.js crypto module.

PBKDF2 with HMAC (with SHA-1, SHA-256, SHA-384 or SHA-512) as the PRF function for Node.js and browsers.

Two-factor authentication for Node.js. One-time passcode generator (HOTP/TOTP) with support for Google Authenticator.

Security module - CVE fixes, input validation, path security

Key signing and verification for rotated credentials

HMAC token generation and verification with time-based limitation on validity

Express middleware for HMAC authentication

JavaScript Elliptic curve cryptography library, includes fix to browser.js so that encrypt/decrypt works

This is an Open-OTP library that generates and verifies Time-based One-Time Passwords (TOTP) using the HMAC-based One-Time Password (HOTP) algorithm.

Methods to construct and verify HMAC signatures based on the IETF draft standard

Library designed to make building APIs that use HMAC signatures simple.

The TokenEx Iframe repo is an open source library used for loading and interacting with the hosted [TokenEx Iframe](https://www.tokenex.com/hosted-iframe/)

Security library

A consistent interface for SHA256 across browsers and NodeJs

[](https://www.npmjs.com/package/ton-crypto-primitives)

Verify an hmac signature.

A JSON-LD context for the Sha256HmacKey2019 crypto suite for JavaScript.

A framework agnostic encryption library

Provide the function that calculates the HMAC of a message as a Native Module.