🔐 A PHP library for generating one time passwords according to RFC 4226 (HOTP) and the RFC 6238 (TOTP)

A small and easy-to-use one-time password generator library for Java implementing RFC 4226 (HOTP) and RFC 6238 (TOTP).

Javascript One-Time Password module.

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

OTP authentication for OpenBSD implementing RFC 6238 and RFC 4226.

One Time Password for 2-Factor-Authentication implemented in Rust

A kotlin implementation of HOTP (RFC-4226) and TOTP (RFC-6238). Supports validation and generation of 2-factor authentication codes, recovery codes and randomly secure secrets.

Dart One-Time Password module.

One-time password PHP implementation of HMAC-based algorithm according to RFC 4226 and RFC 6238 compatible with Google Authenticator.

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

Simple OTP implementation in node.js according to rfc 4996 and rfc 6238

Shell-script (Bash) with functions relevant to 2FA. Compatible with Google Authenticator.

A simple OTP generator written in Swift.

Application and library for time-based one-time passwords as specified by RFC 6238

HMAC-Based One-Time Password Algorithm, as described in RFC 4226

An one-time password generation library written in Go, implementing HOTP (RFC-4226) and TOTP (RFC-6238).

🔐 Tiny & lightweight RFC 4226 & RFC 6238 compliant one-time password (HOTP/TOTP) generation & validation library for Java

!!UNMAINTAINED!! A truely RFC complient HOTP (https://www.rfc-editor.org/rfc/rfc4226) and TOTP (https://www.rfc-editor.org/rfc/rfc6238) implementation which can be used on the server and client.

⚠️⚒️WIP⚒️⚠️ A truely RFC complient HOTP (https://www.rfc-editor.org/rfc/rfc4226) and TOTP (https://www.rfc-editor.org/rfc/) implementation which can be used on the server and client.

A simple and straightforward HOTP and TOTP generation and verification library for .NET.