In traditional banks, you have a username and password that are enough for you to

If you ever want to create an account on a blockchain, you need to generate a public-private keypair.
A public-private key pair is a set of two keys used in asymmetric cryptography. These two keys have the following characteristics:
Public Key: The public key is a string that can be shared openly.

For example - https://etherscan.io/address/0xD9a657ACB3960DB92AaaA32942019bD3c473FCCB
Private key: The private key is a secret string that must be kept confidential.
