Title
The collision security of tandem-DM in the ideal cipher model
Abstract
We prove that Tandem-DM, which is one of the two "classical" schemes for turning a blockcipher of 2n-bit key into a double block length hash function, has birthday-type collision resistance in the ideal cipher model. A collision resistance analysis for Tandem-DM achieving a similar birthday-type bound was already proposed by Fleischmann, Gorski and Lucks at FSE 2009 [3]. As we detail, however, the latter analysis is wrong, thus leaving the collision resistance of Tandem-DM as an open problem until now. Our analysis exhibits a novel feature in that we introduce a trick not used before in ideal cipher proofs.
Year
DOI
Venue
2011
10.1007/978-3-642-22792-9_32
international cryptology conference
Keywords
DocType
Volume
collision security,novel feature,similar birthday-type,birthday-type collision resistance,open problem,ideal cipher model,collision resistance analysis,ideal cipher proof,collision resistance,double block length hash,latter analysis
Conference
2010
Issue
ISSN
Citations 
null
0302-9743
28
PageRank 
References 
Authors
1.05
21
3
Name
Order
Citations
PageRank
Jooyoung Lee157346.13
Martijn Stam2165967.36
John Steinberger339413.62