Title
Quantum attacks on pseudorandom generators.
Abstract
There are advantages in the use of quantum computing in the elaboration of attacks on certain pseudorandom generators when compared with analogous attacks using classical computing. This paper presents a polynomial time quantum attack on the Blum-Micali generator, which is considered secure against threats from classical computers. The proposed attack uses a Grover inspired procedure together with the quantum discrete logarithm, and is able to recover previous and future outputs of the generator under attack, thereby completely compromising its unpredictability. The attack can also be adapted to other generators, such as Blum-Micali generators with multiple hard-core predicates and generators from the Blum-Micali construction, and also to scenarios where the requirements on the bits are relaxed. Such attacks represent a threat to the security of the pseudorandom generators adopted in many real-world cryptosystems.
Year
DOI
Venue
2013
10.1017/S0960129512000825
MATHEMATICAL STRUCTURES IN COMPUTER SCIENCE
Field
DocType
Volume
Quantum,Discrete mathematics,Pseudorandom generator theorem,Mathematics,Pseudorandom number generator
Journal
23
Issue
ISSN
Citations 
3
0960-1295
1
PageRank 
References 
Authors
0.48
11
3
Name
Order
Citations
PageRank
Elloá B. Guedes111.16
Francisco Marcos de Assis233.97
Bernardo Lula Jr.311.83