Results 261 to 270 of about 26,379 (302)
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RC4-Hash: A New Hash Function Based on RC4
2006In this paper, we propose a new hash function based on RC4 and we call it RC4-Hash. This proposed hash function produces variable length hash output from 16 bytes to 64 bytes. Our RC4-Hash has several advantages over many popularly known hash functions. Its efficiency is comparable with widely used known hash function (e.g., SHA-1).
Donghoon Chang +2 more
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On the design of special hash functions for multiple hash tables
2012 9th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE), 2012One disadvantage of bitstate hashing, the traditional probabilistic state space analysis method, is the possible large amount of wasted memory for achieving a high probability of no address collision in hashing. We look at tradeoff between hashing speed and memory assigned for hashing. This paper presents a method using multiple hash tables and special
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On selectable collisionful hash functions
1996This paper presents an attack on Gong's proposed collisionful hash function. The weaknesses of his method are studied and possible solutions are given. Some secure methods that require additional assumptions are also suggested.
Shahram Bakhtiari +2 more
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Proposals for Iterated Hash Functions
2008The past few years have seen an increase in the number of attacks on cryptographic hash functions. These include attacks directed at specific hash functions, and generic attacks on the typical method of constructing hash functions. In this paper we discuss possible methods for protecting against some generic attacks.
Lars R. Knudsen, Søren S. Thomsen
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2012
Universal hash functions are important building blocks for unconditionally secure message authentication codes. In this paper, we present a new construction of a class of e-Almost Strongly Universal2 hash functions with much smaller description (or key) length than the Wegman-Carter construction.
Aysajan Abidin, Jan-Åke Larsson
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Universal hash functions are important building blocks for unconditionally secure message authentication codes. In this paper, we present a new construction of a class of e-Almost Strongly Universal2 hash functions with much smaller description (or key) length than the Wegman-Carter construction.
Aysajan Abidin, Jan-Åke Larsson
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Logical Analysis of Hash Functions
2005In this paper we report on a novel approach for uniform encoding of hash functions (but also other cryptographic functions) into propositional logic formulae, and reducing cryptanalysis problems to the satisfiability problem. The approach is general, elegant, and does not require any human expertise on the construction of a specific cryptographic ...
Dejan Jovanovic, Predrag Janicic
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Trapdoor Hash Functions and Their Applications
2019We introduce a new primitive, called trapdoor hash functions (TDH), which are hash functions H : {0, 1}n → {0, 1} λ with additional trapdoor function-like properties. Specifically, given an index i ∈ [n], TDHs allow for sampling an encoding key ek (that hides i) along with a corresponding trapdoor.
Nico Döttling +5 more
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Universal Hash-Function Families: From Hashing to Authentication
2014Due to their potential use as building blocks for constructing highly efficient message authentication codes (MACs), universal hash-function families have been attracting increasing research attention, both from the design and analysis points of view.
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Controlled alternate quantum walk-based block hash function
Quantum Information Processing, 2023Yuqian Zhou, Yu-Guang Yang
exaly