Public and private keys are essential elements of your blockchain wallet.

Your private key is a sequence of characters that must be kept secret because it allows access to your funds. Never share it with anyone. The seed (or recovery) phrase generated when creating a wallet is a "human-readable" version of your private key, used to recover it when needed.

The public key, for its part, can be shared freely. This represents your wallet address, where funds can be sent to you.

In summary :

- The private key is secret and gives access to your funds.

- The public key is shared and serves as an address to receive cryptocurrencies.