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OSDI
2006
ACM
16 years 3 days ago
Making Information Flow Explicit in HiStar
HiStar is a new operating system designed to minimize the amount of code that must be trusted. HiStar provides strict information flow control, which allows users to specify preci...
David Mazières, Eddie Kohler, Nickolai Zeld...
IPAW
2010
14 years 9 months ago
Towards a Threat Model for Provenance in e-Science
Abstract. Scientists increasingly rely on workflow management systems to perform large-scale computational scientific experiments. These systems often collect provenance informatio...
Luiz M. R. Gadelha Jr., Marta Mattoso, Michael Wil...
FOCS
2006
IEEE
15 years 5 months ago
Towards Secure and Scalable Computation in Peer-to-Peer Networks
We consider the problems of Byzantine Agreement and Leader Election, where a constant fraction b < 1/3 of processors are controlled by a malicious adversary. The first problem...
Valerie King, Jared Saia, Vishal Sanwalani, Erik V...
CSFW
2007
IEEE
15 years 3 months ago
A Type Discipline for Authorization in Distributed Systems
We consider the problem of statically verifying the conformance of the code of a system to an explicit authorization policy. In a distributed setting, some part of the system may ...
Cédric Fournet, Andy Gordon, Sergio Maffeis
CCS
2010
ACM
15 years 3 months ago
Scene tagging: image-based CAPTCHA using image composition and object relationships
In this paper, we propose a new form of image-based CAPTCHA we term "scene tagging". It tests the ability to recognize a relationship between multiple objects in an imag...
Peter Matthews, Cliff Changchun Zou