Understanding Public and Private Keys in Crypto

 

Cryptocurrencies rely on a powerful technology: public and private key cryptography. Understanding these keys is essential for keeping your crypto safe.

🔑 What Is a Public Key?

A public key is like your bank account number. You can safely share it with others so they can send you cryptocurrency.

Example:
0xA13f...d3E9

It’s used to receive funds.

🗝️ What Is a Private Key?

Your private key is like your password or PIN. It gives you full control over your crypto.
Never share it with anyone — if someone has it, they can steal your funds.

Example:
A 64-character alphanumeric string (usually hidden inside your wallet).

🔒 How They Work Together

  1. You generate a wallet with a public and private key pair.

  2. When someone sends you crypto, it’s locked to your public key.

  3. You unlock it and spend it using your private key.

🛡️ How to Protect Your Keys

  • Use hardware wallets for large amounts

  • Store seed phrases offline

  • Avoid taking screenshots of your keys

Comments