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Boris Köpf



I am a researcher at Microsoft Research Cambridge, working on confidential computing. Prior to joining MSR in November 2018, I was a tenured faculty at the IMDEA Software Institute, a postdoc at the Max Planck Institute for Software Systems, and a Ph.D. student at ETH Zurich. I studied mathematics and computer science at the Universidad de Chile, the Universidade Federal de Campinas, and the University of Konstanz, from which I received a M.Sc.

Research Interests

My research focuses on the foundations of computer security. In particular, I am interested in quantitative notions of security, and in techniques for computing corresponding guarantees for real systems. I apply my research to the analysis of side-channel attacks (and countermeasures) and to privacy-preserving data publishing.


Marco Guarnieri, Postdoctoral researcher
Pablo Cañones, PhD student
Pepe Vila, PhD student

Selected and Recent Publications

Spectector: Principled Detection of Speculative Information Flows ( [pdf] [www]
Timing Leaks and Coarse-grained Clocks (CSF '19) [pdf]
On Aggregation of Information in Timing Attacks (EuroS&P '19) [pdf]
Theory and Practice of Finding Eviction Sets (Oakland '19) [pdf]
On the Incomparability of Cache Algorithms in Terms of Timing Leakage (LMCS '19)[pdf]
Loophole: Timing Attacks on Shared Event Loops in Chrome (USENIX Security '17) [pdf]
Rigorous Analysis of Software Countermeasures against Cache Attacks (PLDI '17) [pdf]
Rational Protection against Timing Attacks (CSF '15) [pdf]
CacheAudit: A Tool for the Static Analysis of Cache Side Channels (USENIX Security '13, TISSEC '15) [pdf][slides][www]
Leakage Resilience against Concurrent Cache Attacks (POST '14) [pdf]
Probabilistic Relational Reasoning for Differential Privacy (POPL '12, TOPLAS '13) [pdf]
Approximation and Randomization for Quantitative Information-Flow Analysis (CSF '10) [pdf][slides]
A Provably Secure and Efficient Countermeasure against Timing Attacks (CSF '09) [pdf][slides]
Automatic Discovery and Quantification of Information Leaks (Oakland '09) [pdf][slides]
An Information-theoretic Model for Adaptive Side-Channel Attacks (CCS '07) [pdf][slides]

Recent and Upcoming Events

PETS 2020, Privacy Enhancing Technologies Symposium (PC member)
PETS 2019, Privacy Enhancing Technologies Symposium (PC member)
CCS 2018, ACM Conference on Computer and Communication Security (PC member)
ACSAC 2018, Annual Computer Security Applications Conference (PC member)
SAS 2018, Static Analysis Symposium (PC member)