Results 1 to 10 of about 625 (261)
Key derivation function: key-hash based computational extractor and stream based pseudorandom expander [PDF]
PeerJ Computer ScienceThe key derivation function is a specific cryptographic algorithm that transforms private string and public strings into one or more cryptographic keys.
Chai Wen Chuah +2 more
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Atom: A Stream Cipher with Double Key Filter
IACR Transactions on Symmetric Cryptology, 2021 It has been common knowledge that for a stream cipher to be secure against generic TMD tradeoff attacks, the size of its internal state in bits needs to be at least twice the size of the length of its secret key.
Subhadeep Banik +6 more
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COUNTER MODE DEVELOPMENT FOR BLOCK CIPHER OPERATIONS [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 There are two basic types of symmetric cipher: block ciphers and stream ciphers. Block ciphers operate on blocks of plaintext and ciphertext—usually of 64 bits but sometimes longer. Stream ciphers operate on streams of plaintext and ciphertext one bit or
Ali M. Sagheer, Ahmed T. Suod
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A Secure Real-Time IoT Data Stream Based on Improved Compound Coupled Map Lattices
Applied Sciences, 2022 A secure data stream is important for the real time communications of Internet of Things (IoT). A stream cipher with the characteristics of simple and high speed is suitable in the secure communications of IoT for its security.
Shyi-Tsong Wu
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Perfect Trees: Designing Energy-Optimal Symmetric Encryption Primitives
IACR Transactions on Symmetric Cryptology, 2021 Energy efficiency is critical in battery-driven devices, and designing energyoptimal symmetric-key ciphers is one of the goals for the use of ciphers in such environments. In the paper by Banik et al.
Andrea Caforio +6 more
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Vectorization on ChaCha Stream Cipher [PDF]
2014 11th International Conference on Information Technology: New Generations, 2014 This paper describes software optimization for the stream Cipher ChaCha. We leverage the wide vectorization capabilities of the new AVX2 architecture, to speed up ChaCha encryption (and decryption) on the latest x86_64 processors. In addition, we show how to apply vectorization for the future AVX512 architecture, and get further speedup.
Martin Goll, Shay Gueron
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Algebraic Side Channel Attack on Trivium and Grain Ciphers
IEEE Access, 2017 Solving a system of multivariate quadratic equations obtained through algebraic cryptanalysis is a nondeterministic polynomial time-complete problem. Owing to the trend of stream ciphers based on nonlinear update, the success of algebraic attacks has ...
Asif Raza Kazmi +4 more
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Provable security against generic attacks on stream ciphers
Journal of Mathematical Cryptology, 2023 Recent lightweight hardware-based stream cipher designs keep an external non-volatile internal state that is not part of the cipher’s hardware module. The purpose of these so-called small-state ciphers is to keep the size of the hardware and the power ...
Moch Alexander
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Cryptanalysis of the stream cipher BEAN [PDF]
Proceedings of the 4th international conference on Security of information and networks, 2011 BEAN is a recent stream cipher proposal that uses Feedback with Carry Shift Registers (FCSRs) and an output function. There is a sound motivation behind the use of FCSRs in BEAN as they provide several cryptographically interesting properties. In this paper, we show that the output function is not optimal.
Martin Ågren, Martin Hell
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Towards Low Energy Stream Ciphers
IACR Transactions on Symmetric Cryptology, 2018 Energy optimization is an important design aspect of lightweight cryptography. Since low energy ciphers drain less battery, they are invaluable components of devices that operate on a tight energy budget such as handheld devices or RFID tags.
Subhadeep Banik +7 more
doaj +1 more source