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Public Key

A cryptographic code that allows others to send cryptocurrency to a wallet.

A Public Key is a cryptographic code that allows others to send cryptocurrency to your wallet. It is mathematically derived from the private key but cannot reveal or compromise it.

Public keys serve as the “receiving address” in blockchain networks.

How Public Keys Work

Your wallet generates a private key

A public key is derived from it using cryptography

A wallet address is typically a hashed version of the public key

Anyone can send funds to the address

Only the private key holder can move the funds

Public keys enable secure, one-way transmission of assets.

Use Cases for Public Keys

Receiving tokens

Identifying accounts in DeFi

Verifying digital signatures

Establishing secure connections between wallets and dApps

Public keys are meant to be shared; private keys are not.

Public Key Security

Safe to share publicly

Cannot be reverse-engineered into a private key

Works with digital signatures to validate authenticity

Cryptographic math ensures the one-way relationship remains secure.

Summary

A public key is a cryptographic identifier that lets others send crypto to your wallet. It works together with the private key to enable secure blockchain transactions.

See also