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thatlockingmechanismonyour-千亿兰桂坊
来源:千亿兰桂坊    发布时间:2020-11-22 08:10:01
本文摘要:“thecurrentlockingandauthenticationmechanismsavailableformobilesystemscommerciallydonotworksowell,”saidjannelindqvistAn“insteadofhavingoldmethodyMethods,weletpeoplejustgenerategestureswithoutanykindofvisualcueorotherkindofinstructions

that locking mechanism on your table t computer or smart phone?it ' s mostly a relic from The days of The keyboard . with The advent of touch screens,The three-by-three grids and four-digit pass codeen现在平板电脑或智能手机的锁屏程序可以说是键盘时代的遗物。随着触摸屏的频繁出现,移动设备上常用的九宫格式和4位密码都过时了。

但是在杨家站在别人身后偷拍,而用户手指掠过屏幕时留下的油印却不泄露密码等,仍然被广泛使用。(威廉莎士比亚,windows,文字)(A new study from Rutgers university suggests that Squiggling-yes,Squiggling-oor)。美国罗格斯大学(Rutgers University)的一项新研究显示,平板电脑或智能手机上的信件涂鸦可能是谷歌Android操作系统使用的标准模式锁定屏幕和苹果(Apple)关注的个人识别号码(Personal Indentification Numbers,PINS)。

奎斯特

“the current locking and authentic ation mechanisms available for mobile systems commercially do not work so well,”said janne lindqvist An“instead of having old methody Methods,welet people just generate gestures without any kind of visual cue or other kind of instructions .”研究报告的作者之一、罗格斯大学电气、计算机工程助理教授珍妮o林奎斯特教授我们抛弃了提醒用户的旧方法,而是允许用户在屏幕上用手涂鸦,没有任何视觉通知或其他类型的命令。“The studies' researchers,which included collaborators from The max-Planck institute for informatics and The university of helsinks该研究的研究人员还包括马普信息学研究所(the max-Planck institute food),他们向63名受试者要求“倒计时多点触控手势”神兽涂鸦。

本质上,要求用画布画谷歌NEX 10平板电脑的空白触摸屏,用钢笔画手指。没有九宫格,没有模板,受试者即兴创作了“密画”,而不是密码。the researchers then asked users to recall and redraw their scribbles after a short break and a bit of distracting mental math(counting down fromnext,The researchers retested The users ' memory after a minimum of 10 days。

(six subjects didn ' t return for the second test .)之后,至少10天后,研究人员重新测试了被试者的记忆(6名被试者没有参与第二次测试)。)the trick-as with any good password-was to concoct a gesture complex enough to dupe spies yet simple enough to remember。

就像所有的好密码一样 “you never need to be perfect,”lindqvist said on reproducing a gesture swipe-for-swipe。“you can make a bit of errors,But not too much . it depends a lot on the security policy you want to implement。”对于手势的准确性,林奎斯特说:“你不必走极端。

你可以走得近一点,只要太多就行了。这是相当不同的。

这是你想采取的安全策略。”For instance,authentic ation for a mobile device might accept a higher error rate than one protecting a bank vault。

例如,手机认证程序可以拒绝的密码错误率可能比银行低。To verify matches,the team used a " recognizer " algorithm,Which compared each gesture To a set of stored template研究组使用“模式识别”算法,将每个手势与存储的一组模板进行对比,计算出每个级别操作员的平均分数。分数低于特定阈值的级别操作员可以允许转入。

“you nevercan,in any case-with any kind of meaning fully complex gesture-repeat it exactly the same way,”lindqvist said(for improved accuracy,The study used 10 templates per participant)。)林奎斯特表示:“无论如何,对于简单的手势,这意味着不能100%准确地再现。”林奎斯特认为,为了使手势变得柔和,至少需要三次重复或模板。

(为了提高准确性,研究中对每个受试者使用了10个模板。)the researchers also used a flexible algorithm . participants were able to draw anywhere On the device ' s screen at whatever size and angle As lone研究人员还用于适应性强的算法。

研究

受试者需要在移动设备屏幕上的任何地方以给定的角度绘制图案,只要手势的形状正确,就可以随心所欲。(大卫亚设,Northern Exposure(美国电视),)通过这种灵活的算法,相同的手势可以在多个平台上使用。

例如,大屏幕的平板电脑和屏幕相对较小的智能手机可以用于同一个手势密码。to measure each gesture ' s level of security,The researchers imported a concept from information theory called " differential entropy "this metric quantified the " information " or " surprising ness," of a gesture.generally,the most secure gestures were the为了准确地依赖各手势的安全性,研究人员在信息论中引入了“微分熵”概念。

这个概念能量手势的“信息内容”或“多样性”。一般来说,越是单纯的手势越安全。有些看起来像荆棘、风、草等植物,有些看起来像很多面的宝石。

(威廉莎士比亚,哈姆雷特,天)On average the most memorable gestures were shorter and simpler than those best for security . some of the most memorable onene一般来说,比最安全的手势更容易忘记的手势通常比较简洁,还包括三角形、手写签名等非常简单的图案风格。the least-secure gestures consisted of gentle,looping circles。最不安全的手势要数单调的圆圈。another measure of security involved a " shoulder surfing " test . six student volunteers independently watched videos of another studes REE另一个取决于安全的方法是所谓的“偷拍”测试。

也就是说,让6名学生志愿者独自一人给一名学生看展示三种典型手势的视频,并用记忆重复手势。the preliminary results were promising。“none of the attackers came even close to the gesture”,lindqvist said。

可行性测试的效果令人鼓舞。林奎斯特称这是“偷窥者无法画出类似的手势”。“In fact,one attacker did nearly replicate one of the gestures-a backwards ' N '-but did not come close enough for a ' recoge“typing in a password seems to be an artifact of the past,said Nasir memon,professor of computer science and engineering at new York unn”“there is definitely a need to explore the alternatives。”纽约大学(New York Univ)Ersity)计算机科学与工程系教授纳西尔奥梅曼表示:“出口密码已经过时,急需考古替代方案。

”咪蒙没有参与上述研究。Still,even with the aid of muscle memory,one must question how confusing a world of security gestures might become。但是即使有肌肉记忆辅助,“if you have three different gestures for three different accounts,how do you deal with that?”Memon asked。Memon问道。

“如果你的三个账户有三个不同的手势密码,你怎么分辨呢?”In future studies,Lind qvist said he plans to instruct participants in best practices for generating secure and memorable gestures . he also hops“I think that this robust alternative and a better alternative than the current method,and looking forward to working on the”Lindqvist ST林奎斯特计划在今后的研究中指导受试者,控制最佳实践,获得安全、绿化的好手势。此外,他期待扩大幕后偷窥测试。

奎斯特

他是这样说的。“我指出手势密码非常安全,比现有的方案要好。我期待这个领域以后的深入研究。

”If the new tactic's promise holds,The future of password security may look less like a keyboard and more like finger-skating . for new The bhe“it holds potential,”memon said。“but we ' re still a long way from it being seriously adopted。”梅蒙说:“手势密码显然很有潜力。

但是,为了获得普遍使用,还有很长的路要走。


本文关键词:研究,测试,平板电脑,千亿体育

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