1757 search results - page 165 / 352 » Secure Content Validation |
ICIP
2005
IEEE
16 years 1 months ago
2005
IEEE
This paper presents a novel Mod-4 steganographic method in discrete cosine transform (DCT) domain. A group of 2?2 quantized DCT coefficients (GQC) is selected as the valid embeddi...
ICC
2007
IEEE
15 years 6 months ago
2007
IEEE
—Usage control goes beyond traditional access control, addressing its limitations related to attribute mutability and continuous usage permission validation. The recently propose...
106
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ICDCS
2007
IEEE
15 years 6 months ago
2007
IEEE
Sensor nodes are often organized into clusters to facilitate many network operations such as data aggregation. Clustering has to be protected in hostile environments. Otherwise, a...
FOSSACS
2005
Springer
15 years 5 months ago
2005
Springer
Abstract. An extension of the λ-calculus is proposed, to study historybased access control. It allows for security policies with a possibly nested, local scope. We define a type ...
104
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SDMW
2004
Springer
15 years 5 months ago
2004
Springer
Abstract. In this paper, we address the problem of protecting the underlying attribute values when sharing data for clustering. The challenge is how to meet privacy requirements an...