How it works
Each seed word (index 0-2047) is XORed with corresponding key word. Result is encrypted seed that looks like random words.
Advantages
- Cryptographic strength with random key
- Simple math — can verify manually
- Encrypted seed looks like normal seed
- Coldcard support (Seed XOR)
Risks
- Calculator needed
- Key reuse = vulnerability
- Lost key = lost access
Wallet support
- Coldcard Mk4 (built-in Seed XOR)
- Any wallet (external calculator)
Try it yourself
For education only! Never enter real seed phrases.