June 22–26, 2014
Leipzig, Germany

Presentation Details

Name: Cryptanalysis on Reconfigurable Hardware
Time: Thursday, June 26, 2014
11:30 am - 12:00 pm
Room:   Hall 1
CCL - Congress Center Leipzig
Speaker:   Tim Güneysu, RUB
Abstract:   Cryptanalysis of cryptographic ciphers usually involves massive computations. The security parameters of cryptographic algorithms are commonly chosen so that attacks are infeasible with available computing resources. Thus, in the absence of mathematical breakthroughs to a cryptanalytical problem, a promising way for tackling the computations involved is to build special-purpose hardware exhibiting a (typically) better performance-cost ratio than classical off-the-shelf computers. This talk presents a variety of cryptanalytical applications on the reconfigurable computing systems COPACOBANA and RIVYERA that provide a large array of generic and low-cost field-programmable gate arrays (FPGAs) to provide a significant amount of cheap processing power. The presented cryptanalytical applications include attacks on the well-known DES block cipher, the GSM voice encryption standard as well as trapdoor functions based on factoring and discrete logarithms.