Results 31 to 40 of about 44,265 (336)
Designing pair of nonlinear components of a block cipher over quaternion integers
AIMS Mathematics, 2023 In the field of cryptography, block ciphers are widely used to provide confidentiality and integrity of data. One of the key components of a block cipher is its nonlinear substitution function.
Muhammad Sajjad +3 more
doaj +1 more source
A General Analysis of the Security of Elastic Block Ciphers [PDF]
, 2005 We analyze the security of elastic block ciphers in general to show that an attack on an elastic version of block cipher implies a polynomial time related attack on the fixed-length version of the block cipher.
Cook, Debra L. +2 more
core +2 more sources
Counter Mode Development for Block Cipher Operations [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2009 There are two basic types of symmetric algorithms: block ciphers and stream ciphers. Block ciphers operate on blocks of plaintext and ciphertext—usually of 64 bits but sometimes longer.
Ali Sagheer
doaj +1 more source
On Elastic Block Ciphers and Their Differential and Linear Cryptanalyses [PDF]
, 2005 Motivated by applications such as databases with nonuniform field lengths, we introduce the concept of an elastic block cipher, a new approach to variable length block ciphers which incorporates fixed sized cipher components into a new network structure.
Cook, Debra L. +2 more
core +2 more sources
New Constructions of MACs from (Tweakable) Block Ciphers
IACR Transactions on Symmetric Cryptology, 2017 We propose new constructions of Message Authentication Codes (MACs) from tweakable or conventional block ciphers. Our new schemes are either stateless and deterministic, nonce-based, or randomized, and provably secure either in the standard model for ...
Benoît Cogliati +2 more
doaj +1 more source
Elastic Block Ciphers: Method, Security and Instantiations [PDF]
, 2009 We introduce the concept of an elastic block cipher which refers to stretching the supported block size of a block cipher to any length up to twice the original block size while incurring a computational workload that is proportional to the block size ...
Cook, Debra L. +2 more
core +3 more sources
On the Design of Secure and Fast Double Block Length Hash Functions [PDF]
, 2008 In this work the security of the rate-1 double block length hash functions, which based on a block cipher with a block length of n-bit and a key length of 2n-bit, is reconsidered.
Chen, Kefei, Gong, Z., Lai, X.J.
core +11 more sources
High-Speed Fault Attack Resistant Implementation of PIPO Block Cipher on ARM Cortex-A
IEEE Access, 2021 In ICISC’20 conference, PIPO (Plug-In and Plug-Out) was proposed as an efficient block cipher for secure communication in IoT (Internet of Things) environment.
Jingyo Song +2 more
doaj +1 more source
Quantitative Evaluation of Chaotic CBC Mode of Operation [PDF]
, 2016 The cipher block chaining (CBC) block cipher mode of operation presents a very popular way of encrypting which is used in various applications. In previous research work, we have mathematically proven that, under some conditions, this mode of operation ...
Abidi, Abdessalem +4 more
core +3 more sources
An Enhancement Method Based on Modifying CFB Mode for Key Generation in AES Algorithm [PDF]
Engineering and Technology Journal, 2016 There are two very important characteristics in the block cipher, the amount of time for encryption process and key complexity which caused increasing the complexity of encryption process.
Hasanen S. Abdulah +2 more
doaj +1 more source