INFORMATION PROCESSOR AND METHOD FOR INFORMATION PROCESSING, RECORDING MEDIUM, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To prevent occurrence of damage resulting from implementation of a script. SOLUTION: The developer side to develop a script generates a digest of the script by applying a hash function to the developed script. The generated digest of the script is enciphered by a secret key and included in the script as a digital signature. The receiver side generates a digest of the script by applying a hash function to the received script and decodes by a public key the digital signature included in the script. The receiver side judges whether the generated digest of the script and the decoded digital signature coincide and when they coincide, judges the script as legitimate and starts implementation.