Asymmetric cryptosystem

This is an information system utilizing an algorithm or series of algorithms which provide a cryptographic key pair consisting of a private key and a corresponding public key. The keys of the pair have the properties that (1) the public key can verify a digital signature that the private key creates, and (2) it is computationally infeasible to discover or derive the private key from the public key. The public key can therefore be disclosed without significantly risking disclosure of the private key. This can be used for confidentiality as well as for authentication.