Abstract:
PROBLEM TO BE SOLVED: To provide semiconductor devices that use artifact edges to confuse reverse engineer and a method of manufacturing the same.SOLUTION: A layer of conductive material having a controlled outline is disposed to provide artifact edges of the conductive material that resemble an operable device when in fact the device is not operable. There is provided a technique for and structures for camouflaging an integrated circuit structure by providing artifact that does not exhibit features of devices to actually be manufactured..
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and method for preventing information leakage attacks that utilize timeline alignment.SOLUTION: There are provided an apparatus and method that include a process for randomly varying an amount of time required to determine a lookup table address, and a process for randomly varying an amount of time occurring between one access to at least one lookup table and a subsequent access to another lookup table. The apparatus and method insert a random number of instructions into an encryption algorithm such that the leaked information can not be aligned in time to allow an attacker to break the encryption.
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and method for preventing security leakage against the use of a differential power analysis (DPA) attack in a smart card or the like.SOLUTION: The apparatus and method randomizes the accessing order of eight SP boxes of DES cipher and inserts a random number of randomized pseudo instructions into entry address calculation subroutines of the SP boxes to modify time line relations between inputs and outputs of the SP boxes, whereby the possibility of a successful DPA attack is reduced.
Abstract:
PROBLEM TO BE SOLVED: To provide a technique for and structures for camouflaging an integrated circuit structure against reverse engineering. SOLUTION: The integrated circuit structure is composed of a plurality of layers of material having a controlled outline. A layer of silicide metal is disposed in active areas of the substrate and has a gap over a channel connecting adjacent active areas. The channel has a channel block structure, which appears identical under reverse engineering whether it is made conductive or insulative. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit (IC) protection method cheep and easy for mounting helpful to make it impossible to actualize reverse engineering of the IC to prevent the reverse engineering of the IC specifically by making a reverse enginner very difficult to finding out the real contact of each source and drain. SOLUTION: A semiconductor device including the IC having a metal trace connected to a field oxide is provided with a reverse engineering protection. The metallization is usually connected to the gate, source, or drain of a circuit but not to an insulated field oxide, so as to make the reverse enginner make a mistake. The method is for forming the device. COPYRIGHT: (C)2008,JPO&INPIT