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An encryption technology consisting of a public key (available to everyone) and a private key (owned by and available only to a specific individual or entity).A key pair is used to encrypt or convert information into a format that is difficult or impossible to read. In a digital signature system, the key pair creates and validates the digital signature. In an encryption system, the key pair encrypts and decrypts the message body.The public and private keys have the following relationships:
- Data encrypted with the public key can be decrypted with the private key only.
- Data signed with the private key can be verified with the public key only.
Exposing a public key does not expose the corresponding private key.