Security-Aware Task Mapping Reducing Thermal Side Channel Leakage in CMPs

• Chip multiprocessor (CMP) suffers from growing threats on hardware security in recent years, such as side channel attack, hardware Trojan infection, chip clone, etc. In this paper, we propose a security-aware (SA) task mapping method to reduce the information leakage from CMP thermal side channel. First, we construct a mathematical function that can estimate the CMP security cost corresponding to a given mapping result. Then, we develop a greedy mapping algorithm that automatically allocates all threads of an application to a set of proper cores, such that the total security cost is optimized. Finally, we perform extensive experiments to evaluate our method. The experimental results show that our SA mapping effectively decreases the CMP side channel leakage. Compared to the two existing task mapping methods, Linux scheduler (LS; a standard Linux scheduler) and NoC-Sprinting (NS; a thermal-aware mapping technique), our method reduces side-channel vulnerability factor by up to 19 & x0025; and 7 & x0025;, respectively. Moreover, our method also gains higher computational efficiency, with improvement in million instructions per second achieving up to 100 & x0025; against NS and up to 33 & x0025; against LS.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

Task analysis

Hardware

Informatics

Side-channel attacks

Temperature measurement

Instruction sets

Chip-multi processor (CMP)

hardware security

task mapping

thermal side channel

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)