mnemonic-encrypt 0.1.0

🔐 Secure cryptocurrency mnemonic phrase encryption tool powered by AnyEncrypt

🔐 MnemonicEncrypt

Professional Cryptocurrency Mnemonic Encryption Tool

Powered by AnyEncrypt | BIP39 Standard | Open Source

English | 简体中文

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🚨 Why You Need MnemonicEncrypt?

😰 Common Dangerous Practices

• ❌ Writing plaintext on paper → Anyone who sees it can steal your assets
• ❌ Saving screenshots on phone → Phone lost = Wallet lost
• ❌ Storing in cloud (iCloud, Google Drive) → Cloud service breach risk
• ❌ Saving in notes → Vulnerable to phone hacking

✅ The Secure Solution

MnemonicEncrypt allows you to:

1. 🔐 Encrypt mnemonic phrases with a strong password
2. ☁️ Safely store ciphertext anywhere (cloud, paper, notes)
3. 💻 Decrypt when needed on your computer
4. 🔒 Runs locally, keys never uploaded
5. 📖 Open source and auditable, powered by AnyEncrypt

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🚀 Quick Start

Installation

pip install mnemonic-encrypt

Basic Usage

1️⃣ Encrypt Your Mnemonic

$ mnemonic-encrypt encrypt
📝 Please enter your mnemonic phrase (space-separated):
abandon ability able about above absent absorb abstract absurd abuse access accident
🔑 Enter encryption password: ********
🔑 Confirm password: ********

✅ Encryption successful!

Ciphertext:
ME$v1$gAAAAABmKj9x7Qw3HvNzR5tY8mP2sK4fL6jN1cV9bX0qW...

💡 Tip: Save this ciphertext safely (cloud storage or paper)

2️⃣ Decrypt When Needed

$ mnemonic-encrypt decrypt
📝 Please enter the ciphertext:
ME$v1$gAAAAABmKj9x7Qw3HvNzR5tY8mP2sK4fL6jN1cV9bX0qW...
🔑 Enter decryption password: ********

✅ Decryption successful!

Mnemonic phrase:
abandon ability able about above absent absorb abstract absurd abuse access accident

⚠️ Warning: Use immediately and clear screen history

3️⃣ Generate New Mnemonic (Optional)

$ mnemonic-encrypt generate
✅ Generated 12-word mnemonic phrase:

abandon ability able about above absent absorb abstract absurd abuse access accident

💡 Tip: Use 'mnemonic-encrypt encrypt' to encrypt and save it immediately

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🎯 Use Cases

Scenario	Traditional Method	Using MnemonicEncrypt
Long-term Storage	Plaintext on paper, fear of loss/theft	✅ Encrypt then print, store safely
Cloud Backup	Afraid to upload to cloud	✅ Upload ciphertext with confidence
Multi-device	USB drive, easy to forget	✅ Sync ciphertext via cloud
Inheritance	Paper will has risks	✅ Store ciphertext and password separately

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💎 Core Features

• 🔐 Professional Encryption: Powered by AnyEncrypt (Fernet + AES-128 + HMAC)
• ✅ BIP39 Standard: Fully compatible with standard mnemonic formats (12/15/18/21/24 words)
• 🔑 Key Derivation: SHA-256 derived, resistant to brute-force attacks
• 💻 Offline Operation: All operations run locally, no internet required
• 🛡️ Privacy Protected: Keys are never saved, uploaded, or cached
• 🎯 Interactive CLI: Simple and user-friendly, no commands to memorize
• 🐍 Python API: Integrate into your projects
• 🧪 Well Tested: 100% test coverage
• 📦 Zero Barrier: Install with one command

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🔧 Python API

from mnemonic_encrypt import MnemonicEncryptor

# Create encryptor
encryptor = MnemonicEncryptor()

# Encrypt mnemonic
mnemonic = "abandon ability able about above absent absorb abstract absurd abuse access accident"
password = "your-super-strong-password-123!"
ciphertext = encryptor.encrypt(mnemonic, password)
print(f"Ciphertext: {ciphertext}")

# Decrypt mnemonic
decrypted = encryptor.decrypt(ciphertext, password)
print(f"Mnemonic: {decrypted}")

# Generate new mnemonic
new_mnemonic = encryptor.generate(strength=128)  # 12 words
print(f"New mnemonic: {new_mnemonic}")

# Validate mnemonic
is_valid = encryptor.validate_mnemonic(mnemonic)
print(f"Valid: {is_valid}")

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🛡️ Security Recommendations

✅ Best Practices

1. Strong Password: At least 16 characters, including uppercase, lowercase, numbers, and symbols

   • ❌ password123
   • ✅ MyWallet@2026!SecureP@ssw0rd

2. Password Management:

   • Memorize or write in a physical notebook (not with ciphertext)
   • Can set password hint questions

3. Test First:

   # Test with a dummy mnemonic first
   $ mnemonic-encrypt encrypt  # Use test mnemonic
   $ mnemonic-encrypt decrypt  # Ensure it decrypts correctly
   # Then encrypt your real mnemonic
   

4. Backup Strategy:

   • Print ciphertext twice: 1 in safe, 1 with trusted person
   • Store password separately

❌ Dangerous Practices

• ❌ Using weak passwords (less than 12 characters)
• ❌ Storing password and ciphertext together
• ❌ Using on public/internet cafe computers
• ❌ Taking screenshots with plaintext mnemonic
• ❌ Sending plaintext mnemonic via WeChat/email

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🌍 Technical Architecture

User Mnemonic
    ↓
[Normalization]  ← lowercase, trim spaces
    ↓
[BIP39 Validation]  ← ensure mnemonic is valid
    ↓
[AnyEncrypt Encryption]  ← Fernet (AES-128-CBC + HMAC)
    ↓
[Add Version Prefix]  ← ME$v1$ (for future upgrades)
    ↓
Ciphertext Output

Encryption Details

• Algorithm: Fernet (cryptography library)
• Symmetric Encryption: AES-128-CBC
• Message Authentication: HMAC-SHA256
• Key Derivation: SHA-256 (AnyEncrypt implementation)
• Version Management: ME$v1$ prefix

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📊 Comparison with Competitors

Project	Type	Encryption	BIP39	Cross-platform	Maintained
MnemonicEncrypt	✅ CLI + API	✅ AnyEncrypt	✅ Yes	✅ Win/Mac/Linux	✅ Active
mnemonic-encryption-locally	Web	Custom	✅	⚠️ Browser only	❌
mnemonic-encryption-webjs	Web	WebCrypto	✅	⚠️ Browser only	❌
passphrase-encrypter	Web	Unknown	✅	⚠️ Browser only	❌

Your Advantages:

• ✅ Only Python CLI tool (developer-friendly)
• ✅ Based on established encryption library (high credibility)
• ✅ Cross-platform support (Mac/Windows/Linux)
• ✅ Integrable API (extensible)
• ✅ Continuously maintained and updated

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🌟 Supported Platforms

Platform	Status	Note
macOS	✅	10.15+
Windows	✅	10/11
Linux	✅	Ubuntu 20.04+
Python	✅	3.8 - 3.12

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📖 Documentation

• 📥 Installation Guide
• 📝 Usage Tutorial
• 🔒 Security Guide
• ❓ FAQ
• 🔧 API Documentation

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🤝 Contributing

Issues and Pull Requests are welcome!

1. Fork this repository
2. Create a branch (git checkout -b feature/amazing)
3. Commit changes (git commit -m 'Add amazing feature')
4. Push branch (git push origin feature/amazing)
5. Open a Pull Request

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📄 License

This project is licensed under the MIT License.

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🙏 Acknowledgments

• AnyEncrypt - Core encryption library (Author: Lindsay Wat)
• python-mnemonic - BIP39 implementation
• cryptography - Underlying crypto library

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📧 Contact

• 🐛 Issues: GitHub Issues
• 💬 Discussions: GitHub Discussions

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⚠️ Important Notice

Lost passwords cannot be recovered! Make sure to remember your password or store it securely

Cryptocurrency investments carry risks, please be responsible for your own decisions

Made with ❤️ for cryptocurrency community

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