摘要:
Provided is a program conversion apparatus for generating a secret holding program, which disables a malicious analyzer from analyzing the an original program easily.The program conversion apparatus generates a first instruction group for acquiring values to assign to selection parameters; a second instruction group that includes an instruction group for acquiring, based on an arithmetic expression that uses the selection parameters, a selection identifier showing a selection-target data piece to be processed next; a third instruction group for updates a value of each selection parameter so as to reflect one of (a) a selection identifier showing one of the selection-target data pieces that has already been processed, and (b) at least one of one or more values that have already been assigned to the selection parameters; and selection-target data pieces that, by processing in a predetermined order, output an execution result identical to a result of the original program, each of the selection-target data pieces being in correspondence with a different selection identifier. The program conversion apparatus generates the secret holding program so as to include the first instruction group, the second instruction group, the third instruction group and the selection-target data pieces.
摘要:
The present invention comprises a program generation apparatus for generating an obfuscated program difficult to analyze from outside and a program execution apparatus for executing the program. The program generation apparatus comprises: an acquisition unit operable to acquire a 1st program including one or more instructions, the 1st program causing a process by executing the instructions in a predetermined order to obtain a result; a generation unit operable to generate a 2nd program based on the 1st program; and an output unit operable to output the 2nd program. Here, the 2nd program causes a process that is different from the process caused by the 1st program and varies according to current information determined at execution of the 2nd program in order to obtain a result identical to the result of the 1st program.
摘要:
A resin composition having a nacreous gloss comprising (i) a polyvinyl chloride resin and (ii) a polystyrene resin or a high impact polystyrene resin is provided. This composition can be advantageously molded into any article and provide an excellent nacreous gloss thereto.
摘要:
A CO.sub.2 laser machining apparatus, has a CO.sub.2 laser oscillator connected with a condenser through a flexible cable including a fiber bundle for transmitting infrared rays of 10.6 micrometers therein.
摘要:
A nail file having an excellent and uniform filing property and a method for greatly facilitating the manufacture of same are provided. This nail file has a number of file blade formed by a number of edge lines of concave portions randomly or irregularly etched in the surface of a flat metal plate. These concave portions have a diameter of 100 through 300 microns, a depth of 10 through 80 microns and a distance between the adjacent edge lines of 10 through 100 microns. The concave portions are photographically etched in the surface of a flat metal plate by using a photosensitive resin.