We find that blocking contextual ads did not have a statistically significant effect on the prices of products participants chose to purchase, the time they spent searching for them, or how satisfied they were with the chosen products, prices, and perceived quality. The panelists will share their experiences working with election officials, and we will discuss technologies such as end-to-end voting and risk-limiting audits. Session Chair: Ahmad-Reza Sadeghi, Technische Universität Darmstadt, Fabian Schwarz and Christian Rossow, CISPA Helmholtz Center for Information Security. Libraries are diverse and have unique interfaces that require unique fuzzers, so far written by a human analyst. locks, drones, and implantable medical devices. The key idea of VULMET is to use the weakest precondition reasoning to transform the changes made by the official patches into the hot patch constraints. The experiments have shown that VULMET can generate correct hot patches for 55 real-world Android kernel CVEs. In these services, the client sends the query to the cloud server and receives the response in which case the query and response are revealed to the service provider. However, code analysis only shows what contracts can be attacked, but not what have been attacked, and more importantly, what attacks have been prevented in the real world. And if they do so, is that reflected in more secure apps? compilation-based approach to symbolic execution that performs better than We have disclosed identified vulnerabilities and received acknowledgments from vendors. Similarly, security testing drivers is challenging as input must cross the hardware/software barrier. Scott Carr - Purdue University . We theoretically analyze the attacks from The key idea behind our attack is to undervolt a physical core to force non-recoverable hardware faults. In this paper, we isolate and identify these detection gaps by measuring the end-to-end life cycle of large-scale phishing attacks. We observe that in Zcash's implementation, the time to generate a zero-knowledge proof depends on secret transaction data, and in particular on the amount of transacted funds. We construct the first black-box spoofing attack based on our identified vulnerability, which universally achieves around 80% mean success rates on all target models. image-scaling attacks. We discuss potential protection mechanisms to mitigate the resulting risks. Counterfeit integrated circuits are responsible for billions of dollars in losses to the semiconductor industry each year, and jeopardize the reliability of critical systems that unwittingly rely on them. However, little work has been done to understand the way reverse engineers think when analyzing programs, leaving tool developers to make interface design decisions based only on intuition. Note: Co-authors Greenstadt and McCoy have declined the Internet Defense Prize. It also uncovers considerable differences between the models, confirming the complexity of DTLS state machines. Our empirical experiments with popular CDN providers underline the fact that web caches are not plug & play technologies. While trusted execution environments (TEEs) are promising options for preventing the direct leakage of private video content, they remain vulnerable to side-channel attacks. They often perform safety-critical functions, e.g., personal medical devices, automotive CPS as well as industrial and residential automation, e.g., sensor-alarm combinations. First, DRAM requests are only visible on the memory bus at last-level cache misses. Our universal circuit is linear in the number of operations instead of quasi-linear like other universal circuits. We implemented Silhouette for the ARMv7-M architecture, but our techniques are applicable to other common embedded ARM architectures. Experimental results show that SmartVerif can automatically verify all security protocols studied in this paper. Zhengzi Xu, Nanyang Technological University; Yulong Zhang, Longri Zheng, Liangzhao Xia, and Chenfu Bao, Baidu X-Lab; Zhi Wang, Florida State University; Yang Liu, Nanyang Technological University. In recent years, Google has developed a number of security mechanisms for Android apps, ranging from multiple KeyStores to the recent introduction of the new Network Security Policy, an XML-based configuration file that allows apps to define their network security posture. recognition regardless of how trackers train their models. We also show how TXSPECTOR can be used for forensic analysis on transactions, and present Detection Rules for detecting other types of attacks in addition to the three focused Ethereum attacks. Overall, our findings show a perhaps surprising lack of binary security in WebAssembly. Linked Presentation: USBFuzz: A Framework for Fuzzing USB Drivers by Device Emulation. The legacy branch of GnuPG still uses SHA-1 by default for identity certifications, but after notifying the authors, the modern branch now rejects SHA-1 signatures (the issue is tracked as CVE-2019-14855). We demonstrate data recovery from commercial flash memory chip, sanitized with scrubbing, by using partial erase operation on the chip. Michael A. Specter, James Koppel, and Daniel Weitzner, MIT. TextShield differs from previous work in several key aspects: (i) generic – it applies to any Chinese-based DLTC models without requiring re-training; (ii) robust – it significantly reduces the attack success rate even under the setting of adaptive attacks; and (iii) accurate – it has little impact on the performance of DLTC models over legitimate inputs. And Associate Prof ( Adj. observe an unencrypted address Bus and extract memory... 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