Pierre-Louis Aublin

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Byzantine Fault Tolerant state machine replication (BFT) protocols are replication protocols that tolerate arbitrary faults of a fraction of the replicas. Although significant efforts have been recently made, existing BFT protocols do not provide acceptable performance when faults occur. As we show in this paper, this comes from the fact that all existing(More)
Accountability is becoming increasingly required in today's distributed systems. Indeed, accountability allows not only to detect faults but also to build provable evidence about the misbehaving participants of a distributed system. There exists a number of solutions to enforce accountability in distributed systems, among which PeerReview is the only(More)
Trusted execution support in modern CPUs, as offered by Intel SGX enclaves, can protect applications in untrusted environments. While prior work has shown that legacy applications can run in their entirety inside enclaves, this results in a large trusted computing base (TCB). Instead, we explore an approach in which we partition an application and use an(More)
Collaborative systems (e.g., P2P instant messaging, file sharing, live streaming applications) constitute the largest traffic of today’s Internet. Common to all these systems is the assumption that, in return to the service offered by the collaborative system, users are willing to participate by sharing their resources with others. However, in practice,(More)
With the current development of mammographic screening of women over 50 years of age, there is a 7 percent increase in the number of cases of in situ canalar cancer; in some studies, this increase is a high as 15 or 20 percent. This cancer raises two types of problem. First, histologically, a large number of varieties have been identified and it is(More)
The authors report two cases of oligoamnios associated with growth retardation. They wish to demonstrate how important the monitoring of the pregnancy is, from a clinical and sonographic standpoint, in order to screen, among others, an oligoamnios, frequently associated with a fetal malformation, and prepare to receive the child in a suitable(More)
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