A User Authentication System Using Schema of Visual Memory

Harada, Akira; Isarida, Takeo; Mizuno, Tadanori; Nishigaki, Masakatsu

doi:10.1007/11613022_28

Cited by 25 publications

(25 citation statements)

References 2 publications

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“…This section provides a brief overview of the basic system [6]. To solve the problems with conventional image-based authentication systems (user authentication systems using original images), a user authentication system using "unclear images" as passimages has been proposed.…”

Section: Concept Underlying Basic Systemmentioning

confidence: 99%

“…Actually, two kinds of experiments with a two-alternative authentication system 1 have been carried out by Harada et al [6]. 1 The user had to memorize one pass-image in this experiment, and one decoy image was presented along with the pass-image in each authentication phase.…”

Section: Achievements and Problems With Basic Systemmentioning

confidence: 99%

“…To solve these problems, a user authentication system using "unclear images" as pass-images has been proposed, in which only legitimate users can understand what they mean by viewing the original images corresponding to the unclear pass-images [6]. These unclear images are meaningless to unauthorized users.…”

Section: Introductionmentioning

confidence: 99%

“…This paper refers to the previous authentication system using unclear images [6] as the "basic system". In the next section, we review this basic system.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of User Authentication Using Schema of Visual Memory: Exploitation of "Schema of Story"

Yamamoto

Harada²,

Isarida³

et al. 2008

22nd International Conference on Advanced Information Networking and Applications (Aina 2008)

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A user authentication system using "unclear images" as pass-images has been proposed, in which only legitimate users can understand their meaning by viewing the original images corresponding to the unclear pass-images. These unclear images are meaningless to unauthorized users. Hence, it is difficult for attackers to memorize these unclear passimages, even though they may have observed legitimate users' authentication trials. However, as long as the same pass-images are always used, it would not be completely impossible for unauthorized users to memorize unclear-images. Therefore, this paper discusses enhancement to the authentication system by permitting users to memorize a number of pass-images and using a different subset of passimages at all authentication trials. To mitigate the burden imposed by memorizing additional pass-images in the enhanced system, we modified it by extracting a certain number of images from a video sequence. The pass-images were obtained by making the extracted images unclear. As only legitimate users were allowed to view the video sequence in their registration phase, only they could understand what the unclear passimages meant. Thus, the unclear pass-images become easy for legitimate users to memorize. We verified the effectiveness of the enhanced system through comparative experiments.

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Section: Concept Underlying Basic Systemmentioning

confidence: 99%

Section: Achievements and Problems With Basic Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…This paper refers to the previous authentication system using unclear images [6] as the "basic system". In the next section, we review this basic system.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of User Authentication Using Schema of Visual Memory: Exploitation of "Schema of Story"

Yamamoto

Harada²,

Isarida³

et al. 2008

22nd International Conference on Advanced Information Networking and Applications (Aina 2008)

Self Cite

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“…Examples include using images of cartoon characters [3], images of geometric shapes [14] and using images that were later transformed into unclear or distorted forms during login [15] and [16]. With respect to the click-based method, a technique known as persuasion has been proposed [17] where the software recommends to the user possible 'safe' areas in which to create their secrets.…”

mentioning

confidence: 99%

Quantifying the Effect of Graphical Password Guidelines for Better Security

Jali

Furnell

Dowland

2011

IFIP Advances in Information and Communication Technology

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Abstract. Authentication using images or graphical passwords is one of the possible alternatives for traditional authentication based upon passwords. This study aims to investigate the practicality of giving guidelines or advice to users before they start choosing their image passwords, the effectiveness of using a smaller tolerance (clickable areas) and the optimum combination of click and image passwords. An alternative graphical prototype known as the Enhanced Graphical Authentication Scheme (EGAS) was developed in order to achieve these aims which implemented two different types of data collection (internal and external). From the findings, both internal and external groups indicated that the implementation of guidelines alone cannot guarantee the security of image passwords created by participants; but, in combination with other usability measurements this study has shown positive outcomes.

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Humanics information security

Nishigaki

2017

Concurrency and Computation

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So far, information security has been focusing mainly on how to improve security and safety technologies. As people are becoming connected with a larger amount of cyber equipment, however, the human aspect in cyber security and safety has gained more attention as an essential issue. In other words, both security and usability of ICT systems have recently become much more critical to achieve. Nevertheless, as everybody knows, security and usability have a trade-off relationship. Even when a security technology offers a high security level for an ICT system, if it greatly degrades the usability, the security technology will not be used. However, it is not always true that we can never accept any difficulty or bother. If a security technology burdens a user but the user does not notice the burden or even enjoys it, there is no problem.How people feel is key. Against this background, my colleagues and I have been studying how to combine security technologies and human factors, specifically cognitive and psychological characteristics. We call the concept "humanics information security." This paper describes our pilot studies and explains how our humanics information security approach can effectively achieve both security and usability for ICT systems.

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A User Authentication System Using Schema of Visual Memory

Cited by 25 publications

References 2 publications

Improvement of User Authentication Using Schema of Visual Memory: Exploitation of "Schema of Story"

Improvement of User Authentication Using Schema of Visual Memory: Exploitation of "Schema of Story"

Quantifying the Effect of Graphical Password Guidelines for Better Security

Humanics information security

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