PROGRAM PROCESSOR, PROGRAM PROCESSING METHOD, PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM

摘要

A program provision system unifying the management of a program provided to users having different functions and not requiring the creation of a source program corresponding to each new request for an additional function, etc. In encrypting a function (10A) of an original source (10), a stub function (25A-1) and a symbol (25A-2) for recognition as a comment are embedded into an encrypted source (20). The function (10A) is encrypted by key information Key-xxx1 (20A-1) and embedded into the encrypted source (20) as an encrypted function section (20A-2). The encrypted source (20) can be converted directly into an executing-format file, but only a function (10B) is executable. A user that desires to use the function (10A) acquires a decryption key and decrypts the encrypted function section (20A-2).