HOTP/TOTP one time passwords on java phones (J2ME)
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Mar 18, 2024 - Java
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hotp-generator
Here are 39 public repositories matching this topic...
A serverless progressive web application that generates TOTP and HOTP codes, enabling robust two-factor authentication (2FA) directly within your browser. Powered by Nuxt 4, NuxtHub, NuxtUI 3, Cloudflare Pages, D1 Database, and Drizzle ORM.
vuejs typescript serverless totp hotp authenticator nuxtjs two-factor-authentication webdevelopment 2fa tailwindcss vue3 totp-generator hotp-generator cloudflare-pages nuxtui cloudflared1 drizzle-orm nuxthub nuxt4
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Jun 22, 2026 - Vue
HMAC Based One Time Passwords in PHP. RFC4226 and RFC6238 compliant.
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Jul 14, 2026 - PHP
Nextcloud app that allows you to manage your OTP (TOTP/HOTP) codes easily
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Jul 20, 2026 - TypeScript
Nextcloud app that allows you to manage your OTP (TOTP/HOTP) codes easily
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Apr 3, 2026 - Dart
HOTP and TOTP algorithms in Erlang.
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Jul 26, 2022 - Erlang
Online One Time Password (HOTP/TOTP) generator.
password-generator qrcode 2fa tailwindcss liquidjs cloudflare-worker totp-generator hotp-generator cloudflare-pages nitrojs
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Jan 29, 2025 - Liquid
Similar to the Google authenticator just written in Python to automate annoying two factor authentication.
mcp totp hotp two-factor-authentication otpauth 2fa 2factor 2fa-client 2fa-client-python totp-generator hotp-generator mcp-server mcp-tools
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Jul 25, 2026 - Python
Go library for one-time passwords, supports HOPT and TOPT (Google Authenticator compatible)
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Mar 19, 2023 - Go
Trezur is a fast, secure, light-weight web-app to generate TOTP and HOTP tokens.
two-factor-authentication 2fa totp-generator hotp-generator authenticator-app 2factor-authentication
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Jul 3, 2026 - Svelte
Cross-platform console C#/.Net implementation to generate one time passwords (TOTP/HOTP) for open authentication defined by standard RFC's (4226, 6238). Compatible with Google/Microsoft Authenticator apps.
otp totp hotp google-authenticator rfc6238 otp-generator rfc4226 one-time-password totp-generator microsoft-authenticator hotp-generator
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Jun 16, 2026 - C#
Minimal Free Pascal implementation of TOTP and HOTP algorithms using SHA1 and SHA256. Supports both time-based and counter-based OTP generation.
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Nov 3, 2025 - Pascal
A simple, easy-to-use one-time password generator implementation for .NET Core 3.1. Compatible with Google Authenticator.
otp totp hotp google-authenticator mfa otpauth 2fa one-time-passwords multifactor-authentication 2factor one-time-password totp-generator hotp-generator
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Sep 30, 2020 - C#
A fine TOTP/HOTP 2FA extension for Firefox with optional sync and auto fill.
javascript firefox firefox-addon totp hotp 2fa 2factor totp-generator hotp-generator 2factor-authentication
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Jul 24, 2026 - JavaScript
Azokle Auth is a privacy-first authentication system with end-to-end encryption and Zero-Knowledge Architecture. It supports passwords, TOTP, FIDO2/WebAuthn, and multi-factor authentication, providing secure, flexible, and developer-friendly identity management for web, mobile, and enterprise applications.
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May 19, 2026 - Java
OTPLib Delphi Library
totp hotp google-authenticator two-factor-authentication 2fa rfc-6238 rfc-4226 rfc6238 otp-generator one-time-passwords rfc4226 otp-verification totp-generator microsoft-authenticator hotp-generator totp-codes otplib hotp-verification otp-dotnet
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Mar 4, 2025 - Pascal
A Swift library that provides cryptographic authentication algorithms like OCRA, HOTP etc.
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Jun 20, 2024 - Swift
Kotlin Multiplatform library for OTP and TOTP password generation/validation
kotlin kotlin-android totp kotlin-multiplatform hotp-generator kotlin-multiplatform-library kotlin-multiplatform-mobile
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Jan 27, 2024 - Kotlin
Implementation of HOTP and TOTP as per the RFC RFC4226 and RFC6238 respectively
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Oct 19, 2023 - Go
A powerful, privacy-focused web-based tool for generating and testing TOTP (Time-based One-Time Password) and HOTP (HMAC-based One-Time Password) codes. Designed for developers, security professionals, and anyone who needs to test authenticator app implementations without compromising their sensitive credentials.
cryptography otp totp hotp authenticator mfa two-factor-authentication multi-factor-authentication 2fa security-tools rfc6238 otp-generator rfc4226 security-testing qr-code-generator privacy-focused totp-generator hotp-generator authenticator-app authentication-testing
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Nov 1, 2025 - HTML
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