Einztein

Einztein / PureTOTP

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A minimal and dependency-free TOTP library written in C++.

11
0
100% credibility
Found Apr 11, 2026 at 11 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
C++
AI Summary

PureTOTP is a compact C++ library for generating time-based one-time passwords (TOTP) used in two-factor authentication, implemented without external dependencies.

How It Works

1
🔍 Discover secure code maker

You learn about a tiny tool that creates those 6-digit codes that keep changing to protect logins better.

2
📥 Bring it home

You grab the simple files from the project page onto your computer.

3
🛠 Get it ready

You set it up in your project by following the straightforward preparation guide.

4
🔑 Share your secret

You give it your special private key so it knows how to make the exact right codes.

5
✨ Create a code

You ask for the latest code and instantly get a fresh 6-digit number.

✅ Extra security achieved

Your logins now have strong, time-changing codes for safe access every time.

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Star Growth

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AI-Generated Review

What is PureTOTP?

PureTOTP is a minimal, dependency-free C++ library for generating TOTP codes used in two-factor authentication. It takes a base32-encoded secret and produces time-based one-time passwords with customizable digits, refresh intervals, and HMAC algorithms like SHA1, SHA256, or SHA512. You get static functions for quick generation or instance-based calls for repeated use, all running locally without external crypto dependencies.

Why is it gaining traction?

This stands out in C++ for its pure, no-deps approach—unlike libs pulling in OpenSSL or Boost—keeping binaries tiny for embedded or minimal GitHub actions workflows. The simple API delivers cross-platform TOTP with specific-time support, appealing to devs chasing a lightweight alternative to verbose SDKs.

Who should use this?

Embedded C++ developers building IoT firmware with offline 2FA, CLI tool makers generating TOTP in scripts, or backend engineers in resource-constrained servers needing quick auth codes. Avoid for high-security prod where audited libs rule.

Verdict

With 11 stars and 1.0% credibility score, PureTOTP is immature—no tests, basic docs—but its minimal C++ design shines for prototypes. Grab it if you need a dependency-free TOTP library; otherwise, stick to established options.

(178 words)

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