One Time Password (HOTP/TOTP) library for Node.js, Deno, Bun and browsers. Latest version: 9.4.0, last published: 3 months ago. Start using otpauth in your project by running `npm i otpauth`. There are 157 other projects in the npm registry using otpauth.| npm
This document describes an algorithm to generate one-time password values, based on Hashed Message Authentication Code (HMAC). A security analysis of the algorithm is presented, and important parameters related to the secure deployment of the algorithm are discussed. The proposed algorithm can be used across a wide range of network applications ranging from remote Virtual Private Network (VPN) access, Wi-Fi network logon to transaction-oriented Web applications. This work is a joint effort by...| IETF Datatracker
This document describes an extension of the One-Time Password (OTP) algorithm, namely the HMAC-based One-Time Password (HOTP) algorithm, as defined in RFC 4226, to support the time-based moving factor. The HOTP algorithm specifies an event-based OTP algorithm, where the moving factor is an event counter. The present work bases the moving factor on a time value. A time-based variant of the OTP algorithm provides short-lived OTP values, which are desirable for enhanced security. The proposed al...| IETF Datatracker