Data processing system having public encryption and private decryption keys.

摘要

A data processing system that provides for the public encryption of software programs while simultaneously protecting against the public decryption and piracy of those programs is comprised of a plurality of microprocessors: each microprocessor has a unique and publicly accessible encryption key for encrypting software programs in a unique fashion for that microprocessor; each microprocessor further has a unique decryption key for decrypting programs that have been encrypted with the microprocessor's unique encryption key; the decryption key in each microprocessor is imbedded therein in a fashion which makes the decryption key humanly imperceptible, and is of a type that is not determinable from the publicly accessible encryption key.