A Method for Signature Authentication Scheme
13 Apr 2011-pp 49-52
TL;DR: A new Handwritten Signature Authentication Scheme is proposed, based on extensive statistical analysis, Mean Variance and Theory of Estimation, which combines two main Rule Set Algorithms and one Authentication Algorithm.
Abstract: In this paper we propose a new Handwritten Signature Authentication Scheme. The scheme consists of two main Rule Set Algorithms and one Authentication Algorithm. The Algorithms are based on extensive statistical analysis, Mean Variance and Theory of Estimation.
References
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TL;DR: The proposed data embedding method can be used to detect unauthorized use of a digitized signature, and annotate or authenticate binary documents, and presents analysis and discussions on robustness and security issues.
Abstract: This paper proposes a new method to embed data in binary images, including scanned text, figures, and signatures. The method manipulates "flippable" pixels to enforce specific block-based relationship in order to embed a significant amount of data without causing noticeable artifacts. Shuffling is applied before embedding to equalize the uneven embedding capacity from region to region. The hidden data can be extracted without using the original image, and can also be accurately extracted after high quality printing and scanning with the help of a few registration marks. The proposed data embedding method can be used to detect unauthorized use of a digitized signature, and annotate or authenticate binary documents. The paper also presents analysis and discussions on robustness and security issues.
395 citations
01 Oct 2001
TL;DR: A novel algorithm which is suitable for VS visual data authentication is presented and the results obtained by applying it to test data are discussed.
Abstract: In automatic video surveillance (VS) systems, the issue of authenticating the video content is of primary importance. Given the ease with which digital images and videos can be manipulated, practically they do not have any value as legal proof, if the possibility of authenticating their content is not provided. In this paper, the problem of authenticating video surveillance image sequences is considered. After an introduction motivating the need for a watermarking-based authentication of VS sequences, a brief survey of the main watermarking-based authentication techniques is presented and the requirements that an authentication algorithm should satisfy for VS applications, are discussed. A novel algorithm which is suitable for VS visual data authentication is also presented and the results obtained by applying it to test data are discussed.
146 citations
01 May 2001
TL;DR: A web based image authentication method based in digital watermarking can provide more controls to image owners and conveniences to clients who want to get authenticity of image by integrating benefits of using Internet to the watermark system.
Abstract: The demand of security is getting higher in these days due to easy reproduction of digitally created multimedia data. Digital watermark is the emerging technique to embed secret information into content for copyright protection and authentication. Watermark is embedded within an image that alteration and modification to the watermarked image can be detected in a fragile watermark system. Watermark detection is blind that does not require an original image and it is invisible to avoid revealing secret information to malicious attackers. A web based image authentication method based in digital watermarking is described in this paper. It can provide more controls to image owners and conveniences to clients who want to get authenticity of image by integrating benefits of using Internet to the watermark system.
55 citations
Journal Article•
28 Aug 2008-World Academy of Science, Engineering and Technology, International Journal of Computer, Electrical, Automation, Control and Information Engineering
TL;DR: A novel approach of image embedding is introduced that embeds three images in one image and includes, as a special case of data embedding, information hiding, identifying and authenticating text embedded within the digital images.
Abstract: In this study, a novel approach of image embedding is introduced. The proposed method consists of three main steps. First, the edge of the image is detected using Sobel mask filters. Second, the least significant bit LSB of each pixel is used. Finally, a gray level connectivity is applied using a fuzzy approach and the ASCII code is used for information hiding. The prior bit of the LSB represents the edged image after gray level connectivity, and the remaining six bits represent the original image with very little difference in contrast. The proposed method embeds three images in one image and includes, as a special case of data embedding, information hiding, identifying and authenticating text embedded within the digital images. Image embedding method is considered to be one of the good compression methods, in terms of reserving memory space. Moreover, information hiding within digital image can be used for security information transfer. The creation and extraction of three embedded images, and hiding text information is discussed and illustrated, in the following sections. Keywords—Image embedding, Edge detection, gray level connectivity, information hiding, digital image compression.
43 citations
22 Apr 2008
TL;DR: An extensive survey of the existing graphical password schemes and a novel and new alternative; Figure as a Password is proposed, which supports the application environment and could be a solid platform for future research and study.
Abstract: Most common computer authentication method is traditional 'User Name' and 'password'. There are numerous Biometric authentication methods also proposed. In this paper, we propose a novel and new alternative; Figure as a Password. In this scheme users will get complete freedom to select their Passwords. In this paper, we conduct an extensive survey of the existing graphical password schemes and propose an alternate scheme. Entire work can be divided into three phases- a. sampling of users passwords, processing and storage; b. security on transmission; and c. Recognition and authentication. Our scheme supports the application environment and we strongly believe that "User Authentication by Secured Graphical Password Implementation'' could be a solid platform for future research and study.
11 citations