Silica gel fingerprint film easy to deceive the fingerprint machine lawyers reminded lending fingerprint hidden safety problems

Recently, Henan found 127 college entrance exam, "gunmen" fingerprint verificationbetrayed still pass event is of public concern. According to media reports, in accordance with the provisions of Henan Province, the college entrance examination,the examinee has recorded his right middle finger fingerprint. The college entrance examination on the same day, the examinee fingerprint must match the fingerprint data and fingerprint verification machine memory, before admission. Therefore,"gunmen" organizers specially for every "gunmen" prepared fingerprint film a mix the spurious with the genuine.

Many people doubt, fingerprint film really can mix the spurious with the genuine foolfingerprint verification machine? Fingerprint film what can successfully deceived thefingerprint machine? With these questions, the reporter asked the public and pressexperiment. Words alone are no proof., experimental evidence. The letter will tell you the answer through laboratory experiment.

Silica gel type fingerprint film, success

In order to verify whether the fingerprint film can be easy to deceive the fingerprint verification machine. Reporters invited Ms. Zhang to experimental verification. Ms. Zhang through network purchased the production refers to touch all raw materialsneeded, after several minutes of elaborate, a forefinger fingerprint film released silica gel. Reporter observed, silica gel fingerprint film Ms. Zhang is partial color withtransparent, finger fingerprint ridge cleaning the silica gel fingerprint film, looks "with an air of importance". So how is the effect? Whether can fool the fingerprint verification machine? The answer will be announced.

Journalists first AFIS fingerprint verification machine to Ms. Zhang. Then press it asilicone fingerprint film on his forefinger, in recognition of fingerprint verificationmachine, did not expect the machine screen fingerprint verification is successful. This will not be coincidence? In order to verify, reporters repeatedly experiments were successfully. The reporter then asked another resident Mr. bear, let him put on thesilica gel fingerprint film experiment, did not think of is still successful. It seems, theordinary silica gel fingerprint film very much, can easily fool the fingerprint verificationmachine.

Cans of self-made fingerprint film, failure

In addition, the Internet also has many net friends to weapon, using self-madefingerprint film cans. So the fingerprint membrane whether can mix the spurious with the genuine fool fingerprint verification machine? Journalists and members of the public Mr bear together the experimental secrets.

Before the start of the experiment, he found a pop can, candles, adhesive tape paperpreparation tool. According to the online tutorial, Mr. bear the pop can cut, cut out asmall piece of pop top sheet, and then use the candle will this small cans of black, and then use the little finger gently press on the blackened section, forming a clear blackfingerprint on the adhesive tape, and then a layer of paper sheet covering, such asmake a fingerprint film!

The little finger fingerprint Mr. bear advance has been input into the fingerprintmachine, then whether this can be like the first successful experiment? Fingerprint filmreporters will be just made on recognition in the machine, but after several experiments, the machine has been shown is error.

Experts: the core technology of fingerprint machine is recognition algorithm

Nanchang University associate professor of Computer Research Institute Li Yingteacher explained, the core technology of fingerprint verification machine is afingerprint recognition algorithm. According to the different fingerprint minutiae,fingerprint feature from fingerprint database prior to entry will be extracted, fingerprint feature and field collection value comparison.

Teacher Li said, fingerprint verification machine on the market, working principle areconcave convex surface by laser shot in the fingerprint on the human, reflected back to the sensor board is formed. Fingerprint film made of silica gel casting method, with concave and convex surface is similar and human fingerprints, fingerprint image generation fingerprint verification machine fingerprint scanning silica film andpreviously collected can be matched, so can fool the fingerprint verification machine.Fingerprint film cans way no concave and convex, photo generated in this case is basically blank meaningless. In addition, some fingerprint verification machine also has a temperature probe, scan to meet the temperature characteristic of the object toidentify action, it is also cold cans fingerprint film could not deceive one reason forfingerprint verification machine.

Lawyer: borrow fingerprint hidden safety problems

Single forest Jiangxi star lawyer said, at present the law on production, salesfingerprint film did not expressly prohibited, the blank of law. But if making "finger print" the fingerprint information available to others, then there may be an infringement, should bear the corresponding legal responsibility. "When someone uses fingerprint film to enter the examination room to take this violates theexamination discipline, can be handled according to the relevant provisions of the Ministry of education; if employees use fingerprint film to hit false attendance, it mayinvolve a violation of labor discipline, can be processed in accordance with the relevant provisions of the company." One lawyer said.

"Because the fingerprint information with DNA similar, with exclusive. Each person´s fingerprints are the one and only." Single forest lawyers reminded, fingerprint as a private citizen on important information, it is better not to give others, once the illegal use, threaten their personal safety, property and credit, consequences be unbearable to contemplate.

(hereby declare: in this experiment, only the results for. In addition, special thanks toNanchang Zhongtong automobile technology service center provides the experimental site in this experiment.) ■ Information Daily reporter Zhao Wanlu / text