Wed 7 Nov 2018 15:52 - 16:15 at Horizons 10-11 - Symbolic Execution and Constraint Solving Chair(s): Satish Chandra

The timing characteristics of cache, a high-speed storage between the fast CPU and the slow memory, may reveal sensitive information of a program, thus allowing an adversary to conduct side-channel attacks. Existing methods for detecting timing leaks either ignore cache all together or focus only on passive leaks generated by the program itself, without considering leaks that are made possible by concurrently running some other threads. In this work, we show that timing-leak-freedom is not a compositional property: a program that is not leaky when running alone may become leaky when interleaved with other threads. Thus, we develop a new method, named adversarial symbolic execution, to detect such leaks. It systematically explores both the feasible program paths and their interleavings while modeling the cache, and leverages an SMT solver to decide if there are timing leaks. We have implemented our method in LLVM and evaluated it on a set of real-world ciphers with 14,455 lines of C code in total. Our experiments demonstrate both the efficiency of our method and its effectiveness in detecting side-channel leaks.

Wed 7 Nov (GMT-05:00) Guadalajara, Mexico City, Monterrey change

15:30 - 17:00: Research Papers - Symbolic Execution and Constraint Solving at Horizons 10-11
Chair(s): Satish ChandraFacebook
fse-2018-research-papers15:30 - 15:52
Qiuping YiTexas A&M University, Jeff HuangTexas A&M University
fse-2018-research-papers15:52 - 16:15
Shengjian (Daniel) GuoVirginia Tech, Meng WuVirginia Tech, Chao WangUSC
fse-2018-research-papers16:15 - 16:37
Sergey MechtaevNational University of Singapore, Alberto GriggioFondazione Bruno Kessler, Alessandro CimattiFondazione Bruno Kessler, Abhik RoychoudhuryNational University of Singapore
DOI Pre-print
fse-2018-research-papers16:37 - 17:00
Abdulbaki AydinMicrosoft, USA, William EiersUniversity of California at Santa Barbara, USA, Lucas Bang, Tegan Brennan, Miroslav GavrilovUniversity of California at Santa Barbara, USA, Tevfik BultanUniversity of California, Santa Barbara, Fang YuNational Chengchi University