Package detail

passcode

mikepb330MIT1.0.2

One-time passcode generator (HOTP/TOTP) with URL generation for Google Authenticator

two-factor, authentication, hotp, totp, multi-factor, hmac, one-time password, passwords

readme

Passcode

Passcode implements one-time passcode generators as standardized by the Initiative for Open Authentication (OATH). The HMAC-Based One-time Password (HOTP) algorithm defined by RFC 4226 and the Time-based One-time Password (TOTP) algorithm defined in RFC 6238 are supported.

Passcode is a heavily modified version of speakeasy incorporating the verification functions of notp.

Install

npm install --save passcode

Usage

var passcode = require("passcode");
var token = passcode.hotp({
  secret: "xyzzy",
  counter: 123
});
// token = "378764"

var ok = passcode.hotp.verify({
  secret: "xyzzy",
  token: token,
  counter: 123
});
// ok = {delta: 0}

Documentation

Full documentation at http://mikepb.github.io/passcode/

License

This project incorporates code from speakeasy and notp, both of which are licensed under MIT. Please see the LICENSE file for the full combined license.

changelog

1.0.2 / 2015-07-13

[Fixed] Don't repeat the secret key generating the digest.

1.0.1 / 2015-07-13

[Fixed] Ignore case on algorithm option.

1.0.0 / 2015-07-12

Initial release based on speakeasy and notp.