手势密码够安全吗?
文章来源:未知 文章作者:enread 发布时间:2014-06-06 06:29 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
As more people use smart phones or tablets to pay bills, make purchases, store personal information and even control access to their houses, the need for robust1 password security has become more critical than ever. A new Rutgers University study shows that free-form gestures -- sweeping2 fingers in shapes across the screen of a smart phone or tablet -- can be used to unlock phones and grant access to apps. These gestures are less likely than traditional typed passwords or newer "connect-the-dots" grid3 exercises to be observed and reproduced by "shoulder surfers" who spy on users to gain unauthorized access.
 
"All it takes to steal a password is a quick eye," said Janne Lindqvist, one of the leaders of the project and an assistant professor in the School of Engineering's Department of Electrical and Computer Engineering. "With all the personal and transactional information we have on our phones today, improved mobile security is becoming increasingly critical."
 
Lindqvist believes this is the first study to explore free-form gestures as passwords. The researchers will publish their findings in June as part of the proceedings4 of MobiSys '14, an international conference in mobile computing5.
 
In developing a secure solution to this problem, Lindqvist and the other researchers from Rutgers and collaborators from Max-Planck Institute for Informatics, including Antti Oulasvirta, and University of Helsinki studied the practicality of using free-form gestures for access authentication(证明,鉴定). With the ability to create any shape in any size and location on the screen, the gestures had an inherent appeal as passwords. Since users create them without following a template, the researchers predicted these gestures would allow for greater complexity6 than grid-based gestures offer.
 
"You can create any shape, using any number of fingers, and in any size or location on the screen," Lindqvist said. "We saw that this security protection option was clearly missing in the scientific literature and also in practice, so we decided7 to test its potential."
 
To do so, the researchers applied8 a generate-test-retest paradigm9 where 63 participants were asked to create a gesture, recall it, and recall it again 10 days later. The gestures were captured on a recognizer system designed by the team. Using this data, the authors tested the memorability10 of free-form gestures and invented a novel method to measure the complexity and accuracy of each gesture using information theory. Their analysis demonstrated results favorable to user-generated, free-form gestures as passwords.
 
To put their analysis to practice, the Rutgers researchers then had seven computer science and engineering students, each with considerable experience with touchscreens, attempt to steal a free-form gesture password by shoulder surfing. None of the participants were able to replicate11 the gestures with enough accuracy, so while testing is in its preliminary stages, the gestures appear extremely powerful against attacks. While widespread adaptation of this technology is not yet clear, the research team plans to continue to analyze12 the security and management of free-form passwords in the future.


点击收听单词发音收听单词发音  

1 robust FXvx7     
adj.强壮的,强健的,粗野的,需要体力的,浓的
参考例句:
  • She is too tall and robust.她个子太高,身体太壮。
  • China wants to keep growth robust to reduce poverty and avoid job losses,AP commented.美联社评论道,中国希望保持经济强势增长,以减少贫困和失业状况。
2 sweeping ihCzZ4     
adj.范围广大的,一扫无遗的
参考例句:
  • The citizens voted for sweeping reforms.公民投票支持全面的改革。
  • Can you hear the wind sweeping through the branches?你能听到风掠过树枝的声音吗?
3 grid 5rPzpK     
n.高压输电线路网;地图坐标方格;格栅
参考例句:
  • In this application,the carrier is used to encapsulate the grid.在这种情况下,要用载体把格栅密封起来。
  • Modern gauges consist of metal foil in the form of a grid.现代应变仪则由网格形式的金属片组成。
4 proceedings Wk2zvX     
n.进程,过程,议程;诉讼(程序);公报
参考例句:
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
5 computing tvBzxs     
n.计算
参考例句:
  • to work in computing 从事信息处理
  • Back in the dark ages of computing, in about 1980, they started a software company. 早在计算机尚未普及的时代(约1980年),他们就创办了软件公司。
6 complexity KO9z3     
n.复杂(性),复杂的事物
参考例句:
  • Only now did he understand the full complexity of the problem.直到现在他才明白这一问题的全部复杂性。
  • The complexity of the road map puzzled me.错综复杂的公路图把我搞糊涂了。
7 decided lvqzZd     
adj.决定了的,坚决的;明显的,明确的
参考例句:
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
8 applied Tz2zXA     
adj.应用的;v.应用,适用
参考例句:
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
9 paradigm c48zJ     
n.例子,模范,词形变化表
参考例句:
  • He had become the paradigm of the successful man. 他已经成为成功人士的典范。
  • Moreover,the results of this research can be the new learning paradigm for digital design studios.除此之外,本研究的研究成果也可以为数位设计课程建立一个新的学习范例。
10 memorability db9e30b10058b5e076b474c02a001a2f     
n.值得记忆
参考例句:
  • Continuous change results in lack of memorability. 连续的变化导致没有值得记忆的事情。 来自互联网
  • The memorability of such a moment, as, on the images of the losers' unforgettable pain. 此刻的记忆不能没有失败者难以忘记的痛苦。 来自互联网
11 replicate PVAxN     
v.折叠,复制,模写;n.同样的样品;adj.转折的
参考例句:
  • The DNA of chromatin must replicate before cell division.染色质DNA在细胞分裂之前必须复制。
  • It is also easy to replicate,as the next subsection explains.就像下一个小节详细说明的那样,它还可以被轻易的复制。
12 analyze RwUzm     
vt.分析,解析 (=analyse)
参考例句:
  • We should analyze the cause and effect of this event.我们应该分析这场事变的因果。
  • The teacher tried to analyze the cause of our failure.老师设法分析我们失败的原因。
TAG标签: security password gestures
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