CN104992506A

CN104992506A - LAP (laser activating plating) technology-based POS machine security design method

Info

Publication number: CN104992506A
Application number: CN201510390393.6A
Authority: CN
Inventors: 谢振辉; 胡伟
Original assignee: Fujian Centerm Information Co Ltd
Current assignee: Fujian Centerm Information Co Ltd
Priority date: 2015-07-06
Filing date: 2015-07-06
Publication date: 2015-10-21

Abstract

The invention provides an LAP (laser activating plating) technology-based POS machine security design method. The method includes following steps that: 1. LAP technologies are utilize to fully arrange at least one group of security signal lines having mutually-exclusive polarities at the inner surface of the shell of a POS machine; 2, input signals and output signals of triggering signals in a security processor on a main circuit board are respectively connected with signal input connection points and signal output connection points on each security signal line in a one-to-one correspondence manner; after being communicated with the inner surface of the shell of the POS machine, detection signals emitted by the output triggering signals of the processor are received by input contact points; if the detection signals emitted by each group of triggering signals are identical with the received detection signals, the security of the POS machine is not destroyed; and if the detection signals emitted by each group of triggering signals are different from the received detection signals, the security of the POS machine is destroyed. According to the LAP technology-based POS machine security design method of the invention, the latest LAP technologies are adopted, and 3D circuit product processing cost can be greatly increased, and assembly performance can be greatly improved, and reliability can be greatly increased.

Description

A kind of POS Security Design Methods based on LAP technology

Technical field

The present invention relates to a kind of financial payment card industry (PCI, Payment Card Industry) technical field, particularly relate to a kind of POS Security Design Methods based on LAP (Laser Activating Plating, i.e. laser chemistry activated metal plating) technology.

Background technology

POS is a kind of point-of-sale terminal with clearing of account function, is widely used in the places such as supermarket, chain store, hypermarket, restaurant.Because relate to the transaction of bank card, there is very high requirement to its security performance, must ensure that significant data such as the key etc. inside POS is not stolen.In order to the security performance of specification POS, payment card industry data security standard committee makes PCI Valuation Standard, and PCI Valuation Standard is intended to strict control data and stores with the data security standard ensureing Payment Card user online transaction safety.

Current POS is for meeting PCI Valuation Standard, the method adopted mainly is spliced with the printed circuit board (PCB) being furnished with safety signal line, to be surrounded by the components and parts (safe processor) of the important data line on main circuit board or sensitivity, prevent someone from detecting the components and parts of these important data lines or sensitivity.Safety signal line is a kind of signal wire to signal level sensitivity.Once the level of these safety signal lines changes, will be detected by safe processor, safe processor will wipe out all protected datas.

Safety signal line protects the major way of the components and parts of important data line or sensitivity to have coiling, protection contact, zebra bar etc.Wherein, the principle of traditional protection contact is switch, to be placed on by the rubber of conduction on contact and to impose certain pressure, can realize the closed of switch.

In above-mentioned traditional method, circuit board is normally used is the traditional material such as pcb board or FPC plate, due to pcb board, FPC plate etc. can not on curved surface distribution security signal wire, so often cause cost very high, and assemble very complicated, and bring the problem of reliability.

In prior art, disclosed in 22 days January in 2014, publication number is the Chinese invention of 103530673A, propose a kind of financial PCI Security Design Methods based on LDS technology, the method uses LDS technology to form two groups of parallel wires on plastic stent surface, safe processor on finance PCI product circuit plate sends two groups of different detectable signals, access in two parallel wires by the resilient contact of two on circuit board, hoop is around whole plastic stent surface, the signal receiving end of safe processor is returned again by two other resilient contact, safe processor contrast sends and the signal received, if two groups send all identical with the signal received, then show that the physical security of financial PCI product is not under attack, otherwise, show that the physical security of financial PCI product is under attack.The method that this invention provides can make protection circuit on working of plastics, and product is little by profile restriction, highly versatile, and be convenient to produce and install, cost is low, stable performance, and production efficiency is high, and yield rate is high, and cost is lower.But the LDS technique in this invention needs special laser modified material, and the cost of special laser modified material is very high.This technology only serves protective effect at support place simultaneously, POS as all do not played safeguard protection effect in front, bottom surface, side, security is not high.

Summary of the invention

The technical problem to be solved in the present invention; be to provide a kind of POS Security Design Methods based on LAP technology; realized by LAP technique; it is high for conventional art cost, assembling complexity, poor reliability problem; by LAP process application in POS; greatly reduce costs, and energy safeguard protection needs the data of protection.Simultaneously because LAP technique can realize the printing of safeguard protection signal wire on the shell of curved surface, safety zone expands, and can make the omnibearing protection of whole POS, substantially increase security.

The present invention is achieved in that

Based on a POS Security Design Methods for LAP technology, comprise the steps:

Step 1, inside surface by using LAP technology at least one group of safety signal line of polarity mutual exclusion to be covered with POS shell; Often organize safety signal line and have two safety signal lines, the two ends of every root safety signal line have signal input contact, a signal output contact respectively;

Step 2, by safe for the input in the safe processor on main circuit board trigger pip, output safety trigger pip respectively with on every root safety signal line signal inputs contact, signal output contact connects one to one;

Step 3, by the detectable signal of the output trigger pip in safe processor by after the inside surface of the through POS shell of signal output contact, then receive detectable signal by input contact; The detectable signal of the detectable signal sent and reception contrasts by safe processor, if often the detectable signal that sends of group is all identical with the detectable signal of reception, then the security of POS is not destroyed; If often the detectable signal that sends of group is different from the detectable signal of reception, then the security of POS is destroyed.

Tool of the present invention has the following advantages: the present invention uses up-to-date LAP technique, and LAP technique is not by the restriction of the special laser modified material of LDS technique, and will greatly reduce 3D stereo circuit Product Process cost, assembling increases greatly, and reliability also improves greatly.LAP technology acuracy is high simultaneously, realization is easy, greatly can improve the security of complete machine.

Accompanying drawing explanation

The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the inside surface schematic diagram that the present invention uses the POS shell of LAP fabrication techniques.

Fig. 2 is another inside surface schematic diagram that the present invention uses the POS shell of LAP fabrication techniques.

Fig. 3 is the overall schematic that the present invention uses the POS case surface of LAP fabrication techniques.

Fig. 4 is the annexation schematic diagram of main circuit board and POS shell.

Embodiment

Below in conjunction with embodiment to the detailed description further of the present invention's do, but the present invention is not limited only to following embodiment.

LAP technique full name Laser Activating Plating, i.e. laser chemistry activated metal plating, it is the one of solid forming part visible surface circuit production technique, come by LDS technological evolution, owing to not needing proprietary material, cost declines greatly, in the industries such as mobile phone, be widely used in antenna making etc.

As depicted in figs. 1 and 2, use LAP technology the first safety signal line 1, second safety signal line 2 of polarity mutual exclusion to be covered with the inside surface of POS shell, the mode of wiring is more complicated better; The two ends of described first safety signal line 3 have the first signal input contact 11, first signal output contact 12 respectively, and the two ends of described second safety signal line 2 have secondary signal to input contact 21, secondary signal output contact 22 respectively; Described first safety signal line 1, described second safety signal line 2 can not open circuit or short circuits, and can not short circuit between described first safety signal line 1 and described second safety signal line 2.

The inside surface of POS shell there is the safety signal line of the junction 5 of the housing 3 in housing 3 and inside casing 4, Fig. 1 be connected with the safety signal line of the junction 6 of the housing 3 in Fig. 2, specifically as shown in Figure 3.

Composition graphs 4, the first input contact A, the first output contact B, the second input contact C, the second output contact D is had in safe processor on main circuit board, described first input contact A is inputted contact 11 with described first signal be connected, described first output contact B and described first signal output contact 12, described second input contact C inputs contact 21 with described secondary signal and is connected, and described second output contact D is connected with described secondary signal output contact 22; The detectable signal sent by the first input contact A in safe processor receives detectable signal by the first output contact B inputted the inside surface of the through POS shell of contact 11 by the first signal after; The detectable signal sent by the second input contact C in safe processor receives detectable signal by the second output contact D inputted the inside surface of the through POS shell of contact 21 by secondary signal after; The detectable signal of the detectable signal sent and reception contrasts by safe processor, if often the detectable signal that sends of group is all identical with the detectable signal of reception, then the security of POS is not destroyed; If often the detectable signal that sends of group is different from the detectable signal of reception, then the security of POS is destroyed.

Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.

Claims

1., based on a POS Security Design Methods for LAP technology, it is characterized in that: comprise the steps:

Step 2, by the input trigger pip in the safe processor on main circuit board, export trigger pip respectively with on every root safety signal line signal inputs contact, signal output contact connects one to one;

Step 3, the detectable signal sent by the output trigger pip in safe processor input the inside surface of the through POS shell of contact by signal after, then receive detectable signal by input trigger pip; The detectable signal of the detectable signal sent and reception contrasts by safe processor, if often the detectable signal that sends of group is all identical with the detectable signal of reception, then the security of POS is not destroyed; Print the shell of safety signal based on LAP technology like this, the circuit board that POS inside includes sensitive information has been surrounded, define a closed safety zone; If often the detectable signal that sends of group is different from the detectable signal of reception, namely show that POS shell suffers unauthorised broken or opens, then the security of POS is destroyed.