科學家研發新設備 可通過心跳實現身份驗證

Smartphones can already verify your identity by scanning your fingerprint or your face. But there's something inside you that's also unique proof that you're you.

智能手機可以通過掃描指紋或臉來驗證身份，但同時在你的內心深處，也存在着你自己的特質來證明你就是你。

Researchers have developed a device that uses low-powered Doppler radar to decode the unique geometry of a user's heart…and how it squeezes and swells as it beats. That biometric information can authenticate the identity of the person under scrutiny.

研究人員已經研發了一種設備，利用低功率的多普勒雷達來解碼用戶心臟的獨特幾何形狀，以及當心髒跳動時，是如何擠壓和膨脹的。這種生物特徵信號可以確認審查人的身份。

And if the wrong person sits down: "It would recognize that there is a heart, but the geometry of my heart is different from yours so it would still log me out."

如果錯誤的人入座後，“設備可以識別到有一個心臟，但是所檢測的心臟的形狀和你的不同，所以，我還是無法登陸系統。”

This unusual biometric is robust, because it's actually two different biometrics.

這種不同尋常的生物特徵是很強大的，因爲實際上，這是兩種不同的生物特徵信息。

The first is the shape of your heart -- a 'biologic' biometric or static trait, like fingerprints or iris patterns. The second is the beating of your heart: what's called a 'behavioral' biometric -- which analyzes a dynamic process, and can be harder to spoof.

第一個是心臟的形狀--例如指紋或者虹膜類型等生物特徵或者靜態信息。第二個是你心臟跳動的節奏：也稱爲行爲識別特徵--主要分析動態過程，並且很難作假。

So far they've tested the system on about 100 people -- with an accuracy of over 98 percent. They'll present the results at the MobiCom conference in Utah.

目前爲止，研究人員已經利用該系統測試了約100人--準確度超過98%。他們將在猶他州的MobiCom會議上展示此成果。