1 research outputs found
Floorplanning as a practical countermeasure against clock fault attack in Trivium stream cipher
The fault injection in ciphers operation is a very
successful mechanism to attack them. The inclusion of elements
of protection against this kind of attacks is more and more
necessary. These mechanisms are usually based on introducing
redundancy, which leads to a greater consumption of resources
or a longer processing time. This article presents how the
introduction of placement restrictions on ciphers can make it
difficult to inject faults by altering the clock signal. It is therefore
a countermeasure that neither increases the consumption of
resources nor the processing time. This mechanism has been
tested on FPGA implementations of the Trivium cipher. Several
tests have been performed on a Spartan 3E device from Xilinx
and the experimental measurements have been carried out with
ChipScope Pro. The tests showed that an adequate floorplanning
is a good countermeasure against these kind of attacks.Ministerio de EconomÃa y Competitividad TEC2013-45523-RMinisterio de EconomÃa y Competitividad TEC2016-80549-RMinisterio de EconomÃa y Competitividad CSIC 201550E03