Cryptography

Cryptography is a way to protect digital information using codes. Only people with the right key can read or use that information.

What is cryptography?

Cryptography encrypts data. Encryption means turning readable information into a secret code. The right key can then be used to decrypt it.

In crypto, these techniques help verify who is allowed to make a transaction. A crypto wallet usually has a public key and a private key. You can share your public key to receive crypto. Your private key gives access to your crypto and must stay secret.

Cryptography also helps verify that data hasn’t been changed without anyone noticing. A hash is often used for this: a unique string of characters associated with data.

An example of cryptography

Suppose you want to send crypto to someone. They share a public key that lets you send crypto to the right address.

Your wallet then uses your private key to sign the transaction. The network can verify that the signature is valid without making your private key public. This means no bank or other middleman needs to approve the transaction.

Why is cryptography important in crypto?

The word “crypto” in cryptocurrency refers to cryptography. This technology helps blockchains securely record transactions. It also helps prevent someone from spending the same amount more than once.

That’s why cryptography may come up in news about a blockchain, a wallet, or a security issue. This might include stories about new ways to verify transactions or protect wallets and digital identities.

Cryptography doesn’t automatically make crypto risk-free. If you share a private key, you could give others access to the crypto in that wallet. So always keep this key secret.