Electronic enthusiasts eight o'clock: According to foreign media reports, a study released by New York University and Michigan State University researchers on Monday showed that fake fingerprints made with certain common features of human fingerprints can easily fool the smartphone. Fingerprint sensor.
Fingerprint sensors bring great convenience to contemporary smartphones. Users only need to fingerprint to unlock their phone without entering a password. In addition, payment services such as Apple Pay and Android Pay also support fingerprint payment. In mobile banking applications, fingerprinting can help users pay bills or transfers.
However, fingerprint recognition also brings huge security holes. Through computer simulations, researchers at New York University and the University of Michigan designed a series of artificial "master fingerprints" that matched the true fingerprints in fingerprint sensors by up to 65%.
Researchers have not tested this attack on real phones. Other information security experts say that in reality, the match rate may be significantly reduced. However, the results of this study still raise questions about the reliability of smartphone fingerprinting.
Andy Adler, a professor of systems and computer engineering at Carleton University in Canada, said: "The situation is not so worrying, but it is really bad. If what I want to do is take your phone and use your Apple. Pay to buy things, if I can crack 1/10 of the phone, then the situation is very serious."
A complete human fingerprint is difficult to forge, but the fingerprint sensor on the phone is small in size and only scans part of the fingerprint. If the user enables fingerprint recognition on an iPhone or Android phone, the phone typically gets 8 to 10 fingerprint images for easier matching. In addition, many users also record more than one fingerprint.
Nasir Memon, a professor of computer science and engineering at New York University, said: "It's like you use 30 passwords, and the attacker only needs to match one." It has been published in the IEEE Information Identification and Security Journal.
According to Mayon, the study shows that if you can use the "master fingerprint" to create "magic gloves," you can unlock 40% to 50% of the iPhone in just 5 attempts, and the iPhone will still not ask the user for a password. .
Apple responded that the matching success rate of the incorrect fingerprint and the iPhone fingerprint system is only 1/50,000. Apple spokesman Ryan James said that when developing Touch ID fingerprinting technology, Apple has tested a variety of different attacks. In addition, Apple has introduced other security features to avoid incorrect fingerprint matching. Google (microblogging) declined to comment.
Actual risks are difficult to quantify. For many details of fingerprinting technology, Apple and Google are strictly confidential. In addition, many Android phone manufacturers often reduce the level of security when adapting to Google's standard design.
However, mobile phone manufacturers pointed out that due to the ease of use of fingerprint recognition, many users are willing to turn on this security feature instead of placing the phone in a non-lock screen for a long time. In the early days of the development of smart phones, many users had the habit of not locking the screen.
Another author of the study, Arun Ross, a professor of computer science and engineering at Michigan State University, acknowledged that the study has limitations. "Most smartphone manufacturers have not provided us with fingerprint images."
However, the US federal government Odin project manager Chris Boehnen believes that the team's findings are very meaningful. The research of this project focuses on how to deal with attacks against biometrics. He said: "It is disturbing that the threshold for launching a mobile phone is very low."
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