基于间接伪造方式的硅胶指纹膜制备及其应用研究OA

Indirect fingerprint forgery refers to the creation of fake fingerprints using pre-existing finger marks as the template,which poses a great risk in reality due to the lack of need for the subject's cooperation and its strong concealment.However,applying indirect forgery techniques to electronic evidence collection for the purpose of unlock electronic devices can significantly facilitate the forensic process.This paper investigates the effectiveness of bionic fingerprint films made by indirect forgery methods in bypassing security on various electronic devices equipped with fingerprint recognition systems.In the experiment,visible and latent fingerprints already formed were collected as samples to create ordinary silicone and capacitive silicone fingerprint films,and these were used to crack smartphones,tablet computers,fingerprint attendance machines,and smart door locks.The study also examined the impact of fingerprint sample quality,conditions for making photo-sensitive stamps,and the production conditions of fingerprint films on the effectiveness of cracking.The results show that the fingerprint film,produced by scanning,printing,and engraving photo-sensitive stamps from pre-existing real fingerprint samples,can successfully unlock a series of electronic devices equipped with fingerprint recognition systems with a high success rate.The production process of indirect forgery silicone fingerprint films is convenient and quick,providing a method to crack related electronic devices without disassembly or intrusion into the system,thus better protecting the originality and integrity of evidence.However,it is also necessary to recognize the hazard of this method and urge the public to prioritize the security of their fingerprint information in their daily lives.