In the world of digital currencies and blockchain technology, a public key is an alphanumeric string or a cryptographic code used as an address to identify accounts and receive digital coins securely. It plays a crucial role in encrypting and decrypting sensitive data. A crypto wallet first generates a private key that is kept secret. The next step involves creating a public key from the private key. The public key is used to ease transactions and facilitate secure transfers on blockchains as a shared, hashed version of the private key.
When transferring crypto assets, a private key will first create a digital signature to approve the transaction. Once the transaction is digitally signed, the network will then use the relevant public key to verify the validity of that signature. This means that, with public keys, users can access transactions on the blockchain safely without exposing their private keys.
