Results 11 to 20 of about 172 (89)

Towards a Ring Analogue of the Leftover Hash Lemma

open access: yesJournal of Mathematical Cryptology, 2020
The leftover hash lemma (LHL) is used in the analysis of various lattice-based cryptosystems, such as the Regev and Dual-Regev encryption schemes as well as their leakage-resilient counterparts. The LHL does not hold in the ring setting, when the ring is
Dachman-Soled Dana   +3 more
doaj   +1 more source

Hypothesis testing and advanced distinguishers in differential cryptanalysis of block ciphers [PDF]

open access: yes, 2015
Distinguishing distributions is a major part during cryptanalysis of symmetric block ciphers. The goal of the cryptanalyst is to distinguish two distributions; one that characterizes the number of certain events which occur totally at random and another ...
Courtois, N, Mourouzis, T
core   +1 more source

Formalization of the Advanced Encryption Standard. Part I [PDF]

open access: yes, 2013
In this article, we formalize the Advanced Encryption Standard (AES). AES, which is the most widely used symmetric cryptosystem in the world, is a block cipher that was selected by the National Institute of Standards and Technology (NIST) as an official ...
Arai, Kenichi, Okazaki, Hiroyuki
core   +1 more source

Another look at normal approximations in cryptanalysis

open access: yesJournal of Mathematical Cryptology, 2016
Statistical analysis of attacks on symmetric ciphers often requires assuming the normal behaviour of a test statistic. Typically such an assumption is made in an asymptotic sense.
Samajder Subhabrata, Sarkar Palash
doaj   +1 more source

Fuzzy Extractors: How to Generate Strong Keys from Biometrics and Other Noisy Data [PDF]

open access: yes, 2004
We provide formal definitions and efficient secure techniques for - turning noisy information into keys usable for any cryptographic application, and, in particular, - reliably and securely authenticating biometric data.
Adam Smith   +5 more
core   +3 more sources

(In)Security of Ring-LWE Under Partial Key Exposure

open access: yesJournal of Mathematical Cryptology, 2020
We initiate the study of partial key exposure in Ring-LWE (RLWE)-based cryptosystems. Specifically, we (1) Introduce the search and decision Leaky R-LWE assumptions (Leaky R-SLWE, Leaky R-DLWE), to formalize the hardness of search/decision RLWE under ...
Dachman-Soled Dana   +3 more
doaj   +1 more source

Efficient Fully Homomorphic Encryption from (Standard) LWE [PDF]

open access: yes, 2018
A fully homomorphic encryption (FHE) scheme allows anyone to transform an encryption of a message, m, into an encryption of any (efficient) function of that message, f(m), without knowing the secret key.
Brakerski, Zvika, Vaikuntanathan, Vinod
core   +1 more source

A Novel Color Image Encryption Scheme Based on Arnold’s Cat Map and 16-Byte S-box [PDF]

open access: yes, 2021
The presented work sets out to subsidize to the general body of knowledge in the field of cryptography application by evolving color image encryption and decryption scheme based on the amalgamation of pixel shuffling and efficient substitution.
Qureshi, Ayesha   +2 more
core   +1 more source

Scientometric dimensions of cryptographic research [PDF]

open access: yes, 2015
Information security has been a crucial issue in modern information management; thus cryptographic techniques have become inevitable to safeguard the digital information assets as well as to defend the invasion of privacy in modern information society ...
Pal, Jiban K.
core   +1 more source

Security analysis of Modified Rivest Scheme

open access: yesJournal of Mathematical Cryptology, 2014
The Modified Rivest Scheme (MRS) is an additive homomorphic scheme recently used in many applications which demands third party processing of encrypted data. The present study carries out a comprehensive security analysis of MRS.
Haridas Deepthi   +2 more
doaj   +1 more source

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