Results 31 to 40 of about 3,551 (300)
Lossless sharing visual cryptography
Tongxin xuebao, 2013 According to the information loss during the secret image sharing process, the lossless sharing visual crypto-graphy was proposed. The optimizations of two parameters were simplified into one parameter.
Bin YU, Zheng-xin FU
doaj +2 more sources
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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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with acute lymphoblastic leukemia (ALL) are at risk of severe outcomes from SARS‐CoV‐2 (SCV2). In the post‐pandemic context, where most children have been infected with SCV2, there are limited data on whether vaccination remains beneficial in children with ALL.
Janna R. Shapiro +11 more
wiley +1 more source
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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Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
Random-grid-based Visual Cryptography Schemes
, 2014 NSC99-2221-E-032-051This study discusses a random-grid-based non-expanded visual cryptography scheme for generating both meaningful and noise-like shares. First, the distribution of black pixels on the share-images and the stack-image is analyzed.
Shih-Chieh Wei +1 more
core +1 more source