A Go implementation of the HOTP (RFC 4226) and TOTP (RFC 6238) algorithms.

A Go implementation of Yubico's YKOATH protocol

Go One-Time Password Library

This Go package provides implementations for One-Time Password (OTP) systems, including TOTP (Time-Based One-Time Password), HOTP (HMAC-Based One-Time Password), and OCRA (OATH Challenge-Response Algorithm). It offers a secure, flexible, and easy-to-use solution for enhancing user authentication.

Go-Guardian is a golang library that provides a simple, clean, and idiomatic way to create powerful modern API and web authentication.

TOTP MFA for teams: Shamir's Secret Sharing and zero trust OTP generation

An implementation of RFC 4226, and RFC 6238 for the Go programming language.

Library to generate TOTP/HOTP codes

a2fa is a command line tool for generating and validating one-time password. Its purpose is to get rid of phones and be able to authenticate easily.

A Go implementation of RFC 4226 HOTP: An HMAC-Based One-Time Password Algorithm and RFC 6238: TOTP: Time-Based One-Time Password Algorithm

Implementation of HOTP and TOTP as per the RFC RFC4226 and RFC6238 respectively

Minimal OTP library for Go

Implementations of several algorithms and standards around OTP

One time password (OTP) library for generate two-factor authentication (2FA) tokens with golang

A two-factor authentication(2FA) based on HOTP & TOTP written in Go.

One Time Password package for Go/Golang developers

a HOTP library for golang

Time-Based One-Time Password (TOTP) and HMAC-Based One-Time Password (HOTP) library for Go.

2fa