Public key

A public key is a cryptographic element in asymmetric encryption systems, commonly used in secure digital communication and blockchain technology. It is a unique identifier that's generated alongside a private key. While the private key is kept confidential, the public key is openly shared. Public keys are used to encrypt data or verify digital signatures, enabling secure transmission and authentication. They play an important role in establishing trust and enabling secure interactions within various digital contexts, such as encrypted messaging, digital signatures, and cryptocurrency transactions.