Topic
Visual cryptography
About: Visual cryptography is a research topic. Over the lifetime, 1724 publications have been published within this topic receiving 25300 citations.
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TL;DR: The definition of multiparty verification is introduced, which includes two stages, i.e., a detection stage and a recognition stage, with evaluation methods that are also discussed.
11 citations
TL;DR: This paper introduces an E-payment system that provides an unrivaled security using visual and quantum cryptography, which guarantees unconditional security than traditional E- payment system by using two important cryptographic techniques.
11 citations
26 Nov 2007
TL;DR: A new subliminal channel found in visual cryptography (SCVC) is presented, which is a secure way to convey an extra secret message in the plain form of an ordinary visual cryptography mechanism, implying the possibility of enhancing hiding capacity to image hiding.
Abstract: Visual cryptography techniques have been extensively investigated since the invention and extension to numerous applications such as image encryption, visual authentication, digital watermarking and image hiding. In this paper, a new subliminal channel found in visual cryptography (SCVC) is presented. This subliminal channel is a secure way to convey an extra secret message in the plain form of an ordinary visual cryptography mechanism. To show the superioritysuperiority of the new perspective, a SCVC-based application for image hiding is demonstrated as an example. In such a way, this discovery implies the possibility of enhancing hiding capacity to image hiding. It's worthwhile to note that the extra computational cost is extremely low upon increasing the extra hiding capacity.
11 citations
01 Oct 2014
TL;DR: The Embedded Extended Visual Cryptography Scheme for Color Image is introduced using Artificial Bee Colony algorithm, this can help to improve the visual quality of the recovered image.
Abstract: Cryptography, nothing but the secret sharing of text. Similarly Visual Cryptography Scheme (VCS) is secret sharing of images. The extension of VCS is Embedded Extended Visual Cryptography. A secret image is divided into shares and stacking of the shares will reveal the secret image. The recovered secret image quality is less in terms of loss of resolution and contrast. In this paper we introduced the Embedded Extended Visual Cryptography Scheme for Color Image using Artificial Bee Colony algorithm, this can help to improve the visual quality of the recovered image.
11 citations
TL;DR: In this paper, a high-quality and printer-friendly VCS was proposed, which keeps the size of the shares the same as the secret image and improves the performance of recovered images.
11 citations