The variety of biometric technology typing rhythm will leak? ã€full textã€‘

Scientific and technological dynamic biometric technology has gone through a long period of time. In 1665, Marcello Malphighi first discovered the unique pattern of fingerprints; in 1880, the Scottish surgeon Henry Faulds published a paper discussing the application of fingerprints in identification; 1994 In the same year, John Daugman developed the first iris scanning and identification algorithm and applied for a patent; after a few years, Christoph von de Marsberg of the University of Bochum, Germany (Christophvonder Malsburg) developed a system called ZN-Face that can perform facial feature matching on imperfect images. Today, most mainstream biometrics are based on fingerprints, palm prints, pupils, faces, and voice recognition. In addition to the above identification of physical features, the identification of behavioral features has also become increasingly popular. The latter identifies people based on their behavioral characteristics, such as typing rhythm or walking posture.

Typing rhythm recognition is also called input behavior biometric technology. There are differences in the way people type, and this difference is largely undetectable by the visual, but the computer can distinguish different typewriters through observation. For example, the interval between when you tap different buttons, the duration of each character button pressed by your fingertips, the time you hit a particular string of characters, and so on.

These measurements are very subtle and difficult to detect for the brain, but the computer can measure events accurate to milliseconds.

If you look at this issue from a security perspective, it is really cool. There have been several online bioinformatics biometrics that have been around for a while and it sounds cool as part of their fight against fraud.

But what if the keyboard behavior biometrics is used to reveal privacy?

If a website detects your code pattern, it can easily be abused.

Even if you use a server like Tor to hide your whereabouts on the Internet and hide your identity, while a particular website records the way you hit the keyboard, your identity is likely to be sold out and you want to know People.

Anti-keyboard recognition: Keyboard Privacy

Now the question is: Does the keyboard typing recognition technology really do?

Security researchers PaulMoore and PerThorshein have teamed up to develop and test a tool that can be used to transform user interactions with the site into a conventional way while interfering with differences that humans cannot detect, and eventually being able to defeat any attempt to identify or collect users. Typing website.

The two researchers released an extension of KeyboardPrivacy in Chrome that allows you to typeface that looks completely unlike you, but like a completely different person.

Developers said in their blog that they are not trying to prevent all websites from using keyboard behavior biometrics for authentication:

As I mentioned before, it's important to maintain a good balance between security and privacy; there are few cases where you can improve one performance but not the other (a password manager may be an exception). Maybe you donâ€™t mind leaking some personal information when visiting each website. Maybe your online banking requires you to do this. You can set whether to disable this plugin according to different website requirements. Even if your biological information is leaked to a third-party organization, unless you happen to be logged in to these sites "by accident" disables the plug-in, there is no harm. The biggest problem with passwords is not that they are too long or too simple, but they are used repeatedly. Your (intentional or unintentional) behavior is unknowingly shared between sites by biometrics

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