H
Håvard Raddum
Researcher at University of Bergen
Publications - 53
Citations - 595
Håvard Raddum is an academic researcher from University of Bergen. The author has contributed to research in topics: Block cipher & Cryptanalysis. The author has an hindex of 13, co-authored 51 publications receiving 545 citations. Previous affiliations of Håvard Raddum include Simula Research Laboratory.
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Book ChapterDOI
Bit-Pattern Based Integral Attack
TL;DR: This document outlines how to launch integral attacks against bit-based block ciphers against Noekeon, Serpent and present reduced up to 5, 6 and 7 rounds, respectively, using bit-pattern based notations.
Journal ArticleDOI
Weaknesses in the temporal key hash of WPA
V. Moen,Håvard Raddum,Kjell Hole +2 more
TL;DR: Given a few RC4 packet keys in WPA it is possible to find the Temporal Key (TK) and the Message Integrity Check (MIC) key and this shows that parts of WPA are weak on their own.
Journal ArticleDOI
Solving Multiple Right Hand Sides linear equations
Håvard Raddum,Igor Semaev +1 more
TL;DR: A new method for solving algebraic equation systems common in cryptanalysis is proposed that differs from the others in that the equations are not represented as multivariate polynomials, but as a system of Multiple Right Hand Sides linear equations.
Journal Article
More dual rijndaels
TL;DR: This paper presents 9120 other representations of GF(28), producing more ciphers dual to the AES, and shows that if the matrix used in the S-box of Rijndael is linear over a larger field than GF(2), this would have implications for the XSL attack.