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131
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CAISE
2009
Springer
15 years 7 months ago
Data-Flow Anti-patterns: Discovering Data-Flow Errors in Workflows
Despite the abundance of analysis techniques to discover control-flow errors in workflow designs, there is hardly any support for w verification. Most techniques simply abstract fr...
Nikola Trcka, Wil M. P. van der Aalst, Natalia Sid...
107
Voted
CCS
2010
ACM
15 years 6 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
CCS
2008
ACM
15 years 5 months ago
Avoiding timing channels in fixed-priority schedulers
A practically feasible modification to fixed-priority schedulers allows to avoid timing channels despite threads having access to precise clocks. This modification is rather simpl...
Marcus Völp, Claude-Joachim Hamann, Hermann H...
150
Voted
DBSEC
2001
129views Database» more  DBSEC 2001»
15 years 4 months ago
Secure Role-Based Workflow Models
: In this paper we introduce a series of reference models for Secure Role-Based Workflow systems. We build our models over the well-known RBAC96 framework. 96 model supports the no...
Savith Kandala, Ravi S. Sandhu
121
Voted
ACSAC
2010
IEEE
15 years 1 months ago
Keeping data secret under full compromise using porter devices
We address the problem of confidentiality in scenarios where the attacker is not only able to observe the communication between principals, but can also fully compromise the commu...
Christina Pöpper, David A. Basin, Srdjan Capk...