Results 21 to 30 of about 116 (97)
Computational Image Encryption Techniques: A Comprehensive Review
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 Images contain very sensitive and confidential information. Because images play a significant role in many applications such as military communication, remote‐sensing, and medical‐imaging, therefore, it is necessary to protect sensitive and confidential information from unauthorized use and modification.
Mandeep Kaur +3 more
wiley +1 more source
IMPROVED POLYNOMIAL-TIME PLAINTEXT-RECOVERY ATTACK ON THE MATRIX-BASED KNAPSACK CIPHER
Радіоелектронні і комп'ютерні системи, 2020 Asymmetric ciphers are widely used to ensure the confidentiality of data transmission via insecure channels. These cryptosystems allow the interacting parties to create a shared secret key for a symmetric cipher in such a way that an eavesdropper gets no
Олексій Сергійович Вамболь
doaj +1 more source
Image Processing Method Based on Chaotic Encryption and Wavelet Transform for Planar Design
Advances in Mathematical Physics, Volume 2021, Issue 1, 2021., 2021 This paper provides an in‐depth study and analysis of image processing for graphic design through chaotic encryption combined with a wavelet transform algorithm. Firstly, the traditional Mallat algorithm is optimized; since the mean value of the transform coefficients generated after the wavelet transform of the image is used as the initial value of ...
Yiying Liu, Young Chun Ko, Miaochao Chen
wiley +1 more source
Multidimensional zero‐correlation linear cryptanalysis of the block cipher KASUMI [PDF]
IET Information Security, 2016 The block cipher KASUMI, proposed by ETSI SAGE over 10 years ago, is widely used for security in many synchronous wireless standards nowadays. For instance, the confidentiality and integrity of 3G mobile communications systems depend on the security of KASUMI.
Wentan Yi, Shaozhen Chen
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Multivariate Profiling of Hulls for Linear Cryptanalysis
IACR Transactions on Symmetric Cryptology, 2018 Extensions of linear cryptanalysis making use of multiple approximations, such as multiple and multidimensional linear cryptanalysis, are an important tool in symmetric-key cryptanalysis, among others being responsible for the best known attacks on ...
Andrey Bogdanov +2 more
doaj +1 more source
Improved Parameter Estimates for Correlation and Capacity Deviates in Linear Cryptanalysis
IACR Transactions on Symmetric Cryptology, 2017 Statistical attacks form an important class of attacks against block ciphers. By analyzing the distribution of the statistics involved in the attack, cryptanalysts aim at providing a good estimate of the data complexity of the attack.
Céline Blondeau, Kaisa Nyberg
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Multidimensional zero‐correlation linear cryptanalysis of lightweight block cipher Piccolo‐128 [PDF]
Security and Communication Networks, 2016 AbstractPiccolo is a lightweight block cipher proposed at CHES 2011. This paper firstly gives the zero‐correlation linear approximations over 7‐round Piccolo and studies the security of Piccolo‐128 against multidimensional zero‐correlation linear cryptanalysis. Based on the statistic used in multidimensional linear cryptanalysis to detect the right key
Lishi Fu, Chenhui Jin, Xinran Li
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A Key Selected S‐Box Mechanism and Its Investigation in Modern Block Cipher Design
Security and Communication Networks, Volume 2020, Issue 1, 2020., 2020 The block cipher is an important means to provide data confidentiality in reality, and the S‐box is an essential part in most of modern block cipher designs. In 1973, Feistel used a key selected S‐box mechanism in his early block cipher designs, whose idea is to let each S‐box have two different states and use a key bit to select which of the two ...
Jiqiang Lu, Hwajung Seo, Kaitai Liang
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A Novel Image Encryption Scheme Based on PWLCM and Standard Map
Complexity, Volume 2020, Issue 1, 2020., 2020 In the past decades, considerable attention has been paid to the chaos‐based image encryption schemes owing to their characteristics such as extreme sensitivity to initial conditions and parameters, pseudo‐randomness, and unpredictability. However, some schemes have been proven to be insecure due to using a single chaotic system.
Yucheng Chen +3 more
wiley +1 more source
Cryptographic Strength Evaluation of Key Schedule Algorithms
Security and Communication Networks, Volume 2020, Issue 1, 2020., 2020 Key schedule algorithms play an important role in modern encryption algorithms, and their security is as crucial as the security of the encryption algorithms themselves. Many studies have been performed on the cryptographic strength evaluation of the encryption algorithms; however, strength evaluation of the key schedule algorithms often obtains less ...
Shazia Afzal +5 more
wiley +1 more source