Results 21 to 30 of about 37,139 (180)
Mathematics, 2023 In order to ensure reliable and secure image exchange, chaotic systems are often considered for their good performance in information security. In this work, we first propose an extended version of a chaotic tent map (TM)—the multiparametric 1D tent map (
Achraf Daoui +4 more
doaj +1 more source
Public Key Encryption Supporting Plaintext Equality Test and User-Specified Authorization [PDF]
, 2011 In this paper we investigate a category of public key encryption schemes which supports plaintext equality test and user-specified authorization. With this new primitive, two users, who possess their own public/private key pairs, can issue token(s) to a ...
Tang, Qiang
core +5 more sources
Analysis of common attacks in LDPCC-based public-key cryptosystems [PDF]
, 2003 We analyze the security and reliability of a recently proposed class of public-key cryptosystems against attacks by unauthorized parties who have acquired partial knowledge of one or more of the private key components and/or of the plaintext.
D. Saad +17 more
core +2 more sources
Post-Quantum and Code-Based Cryptography—Some Prospective Research Directions
Cryptography, 2021 Cryptography has been used from time immemorial for preserving the confidentiality of data/information in storage or transit. Thus, cryptography research has also been evolving from the classical Caesar cipher to the modern cryptosystems, based on ...
Chithralekha Balamurugan +3 more
doaj +1 more source
Remote Sensing, 2020 Aerial photography involves capturing images from aircraft and other flying objects, including Unmanned Aerial Vehicles (UAV). Aerial images are used in many fields and can contain sensitive information that requires secure processing.
Fawad Masood +6 more
doaj +1 more source
Secure Key-Based Substitution-Boxes Design Using Systematic Search for High Nonlinearity
IEEE Access, 2023 The significance of data security has become more critical due to the ever-changing goals and capabilities of attackers. As a result, many cryptosystems employing diverse approaches are being developed to safeguard sensitive data.
Amjad Hussain Zahid +4 more
doaj +1 more source
IEEE Access, 2021 The growth of internet era leads to a major transformation in a storage of data and accessing the applications. One such new trend that promises the endurance is the Cloud computing. Computing resources offered by the Cloud includes the servers, networks,
Debabrata Samanta +6 more
doaj +1 more source
Optical Correlators for Cryptosystems and Image Recognition: A Review
Sensors, 2023 Optical correlators are efficient optical systems that have gained a wide range of applications both in image recognition and encryption, due to their special properties that benefit from the optoelectronic setup instead of an all-electronic one.
Andrei Drăgulinescu
doaj +1 more source
Enhanced image security using residue number system and new Arnold transform
Jurnal Teknologi dan Sistem Komputer, 2021 This paper aims to improve the image scrambling and encryption effect in traditional two-dimensional discrete Arnold transform by introducing a new Residue number system (RNS) with three moduli and the New Arnold Transform. The study focuses on improving
Akinbowale Nathaniel Babatunde +3 more
doaj +1 more source
Journal of Informatics and Web EngineeringChaos-based cryptography has yet to achieve practical, real-world applications despite extensive research. A major challenge is the difficulty in analysing the security of these cryptosystems, which often appear ad hoc in design.
Je Sen Teh, Abubakar Abba
doaj +1 more source