# SeedPGP Web App

**Secure BIP39 mnemonic backup tool using PGP encryption**

🔗 **Live App**: https://kccleoc.github.io/seedpgp-web-app/

## About

This is a client-side web application for encrypting cryptocurrency seed phrases (BIP39 mnemonics) using OpenPGP encryption and Base45 encoding for QR code generation.

### Features

- 🔐 PGP encryption with cv25519 (Curve25519)
- 📱 QR code-ready output (Base45 + CRC16)
- ✅ Supports 12/18/24-word BIP39 mnemonics
- 🔒 All encryption happens in your browser (client-side only)

## Security Notice

⚠️ **Your private keys and seed phrases never leave your browser**

- This is a static web app with no backend server
- All cryptographic operations run locally in your browser
- No data is transmitted to any server
- Always verify you're on the correct URL before use

### For Maximum Security

For production use with real funds:
- Download and run locally
- Or use a self-hosted version
- Source code: https://github.com/kccleoc/seedpgp-web

## How to Use

1. **Encrypt**: Enter your mnemonic + PGP public key → Get QR code
2. **Decrypt**: Scan QR code + provide private key → Recover mnemonic

## Version

Current deployment: **v1.1.0**

Last updated: 2026-01-28

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Built with TypeScript, React, Vite, and OpenPGP.js v6