HMAC-Based One-Time Password (HOTP), and Time-Based One-Time Password (TOTP) Algorithms
Install via npm
$ npm install --save hotp
- v3.0.0: Removed CLI utilities – now to be found at jhermsmeier / hotp-totp-cli
- v2.0.0: Added TOTP implementation
- v1.0.0: Initial release
-
key
{Buffer|String} -
counter
{Buffer|String|Number} -
options
{Object}-
algorithm
{Number} Default:'sha1'
-
digits
{Number} Default:6
-
- Returns {String}
var hotp = require( 'hotp' )
var key = 'a very secret key'
var counter = 0
var token = hotp( key, counter, { digits: 8 })
console.log( token ) // > '78035651'
-
key
{Buffer|String} -
options
{Object}-
algorithm
{Number} Default:'sha1'
-
digits
{Number} Default:6
-
time
{Number} Default:(Date.now() / 1000)
-
timeStep
{Number} Default:30
-
t0
{Number} Default:0
-
- Returns {String}
var hotp = require( 'hotp' )
var key = 'a very secret key'
var token = hotp.totp( key, { digits: 8 })
console.log( token ) // > '86247382'