Results 31 to 40 of about 2,287,880 (206)
A Secret Image Sharing Based on Logistic-Chebyshev Chaotic Map and Chinese Remainder Theorem [PDF]
Computer Science Journal of Moldova, 2023 Visual secret sharing (VSS) was introduced in order to solve information security issues. It is a modern cryptographic technique. It involves breaking up a secret image into $n$ secured components known as shares.
Asmaa Hilmi +2 more
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Safeguarding images over insecure channel using master key visual cryptopgraphy
Ain Shams Engineering Journal, 2018 Sharing secrets and safeguarding them while being sent over insecure channel is a crucial matter. Visual Cryptography still has the strong potential to secure this critical issue.
May A. Salama +2 more
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Applying Visual Cryptography to Enhance Text Captchas
Mathematics, 2020 Nowadays, lots of applications and websites utilize text-based captchas to partially protect the authentication mechanism. However, in recent years, different ways have been exploited to automatically recognize text-based captchas especially deep ...
Xuehu Yan +3 more
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PiouCrypt: Decentralized lattice-based method for visual symmetric cryptography
Franklin Open, 2023 In recent years, establishing secure visual communications has turned into one of the essential problems for security engineers and researchers. However, only limited novel solutions are provided for image encryption, and limiting visual cryptography to ...
Navid Abapour, Mohsen Ebadpour
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Perfect contrast visual cryptography scheme
Tongxin xuebao, 2009 A perfect contrast visual cryptography scheme with the best contrast based on both the perfect black visual cryptography scheme（PBVCS） and the non-perfect black visual cryptography scheme（NPBVCS） was proposed.The proposed scheme applied simple Boolean ...
HAN Yan-yan1, HE Wen-cai1, HU Yu-pu1
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Computers Materials & Continua, 2021 : With the increasing need of sensitive or secret data transmission through public network, security demands using cryptography and steganography are becoming a thirsty research area of last few years.
Pranati Rakshit +3 more
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A cheating prevention EVC scheme using watermarking techniques
Revista Facultad de Ingeniería Universidad de Antioquia, 2012 Visual Cryptography (VC), proposed by Naor and Shamir in 1994, is a variation of the conventional secret sharing scheme. In VC, instead of a numerical secret key, a secret image is shared among participants in the form of images called shares.
Angelina Espejel Trujillo +3 more
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Generate Animated CAPTCHA Based on Visual Cryptography Concept [PDF]
Engineering and Technology Journal, 2011 CAPTCHA is a standard security technology. To date, the most commonly used are various types of visual CAPTCHAs, in which a challenge often appears as an image of distorted text that the user must decipher. The proposed scheme is used visual cryptography
Akbas E. Ali +2 more
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A Novel Raster Map Exchange Scheme Based on Visual Cryptography
Adv. Multim., 2021 Raster map is an image that has been discretized in space and brightness, and it is an important carrier of geospatial data. With the rapid development of Internet and big data technologies, preserving the privacy of raster map has become an urgent task.
Lijing Ren
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Magic sheets: Visual cryptography with common shares
Computational Visual Media, 2018 Visual cryptography (VC) is an encryption technique for hiding a secret image in distributed and shared images (referred to as shares). VC schemes are employed to encrypt multiple images as meaningless, noisy patterns or meaningful images.
Naoki Kita, Kazunori Miyata
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