Public and private keys are fundamental to cryptocurrency security. Here's how they work.
The Key Pair
Every crypto wallet has two mathematically linked keys:
- Public Key: Your wallet address (like an email)
- Private Key: Your password (proves ownership)
How They Work Together
You can freely share your public key to receive funds. Your private key signs transactions to prove you authorized them. Anyone with your private key controls your crypto.
Seed Phrases
A seed phrase (recovery phrase) is a human-readable version of your private key. It's typically 12-24 words that can restore your wallet.
Security Rules
- Never share your private key or seed phrase
- Never store them digitally
- Write them on paper/metal
- Store in multiple secure locations
- Anyone with your seed phrase controls your funds