Node.js One-Time Password library

• Zero Dependency
• TypeScript Definitions
• RFC4226 (HMAC One-Time Password)
• RFC6238 (Time-Based One-Time Password)

yarn add node-otp

or

npm install --save node-otp

const { hotp } = require('node-otp')

hotp({
  secret: '12345678901234567890',
})

const { totp } = require('node-otp')

totp({
  secret: '12345678901234567890',
})

Default value of movingFactor is 0

Default value of codeDigits is 6

Default value of addChecksum is false

Default value of truncationOffset is -1

Default value of hmacAlgorithm is sha1

Default value of step is 30

Default value of time is 6

Default value of initialTime is 0

Default value of codeDigits is 6

Default value of hmacAlgorithm is sha256