Recent Research Trends in Side Channel Attack on Cryptographic Modules and its Countermeasure

Cryptographic modules are now mounted on many commercial products for secure transactions and communications. On the other hand, a new class of physical attacks against cryptographic modules, which is called “side channel attack,” is drawing much attention due to the non-invasive nature and effectiveness. This paper presents an overview of the research trends in side-channel attack and the related activities to counteract such attacks and evaluate the security of cryptographic modules.