Access control method and a system for privacy protection
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United States of America Patent
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Sep 13, 2011
Grant Date -
Feb 7, 2008
app pub date -
Aug 1, 2006
filing date -
Aug 1, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for protecting information in a distributed stream processing system, including: assigning a principal label to a processing component; assigning a first channel label to a first communication channel that is input to the processing component; comparing the principal label to the first channel label to determine if the processing component can read data attributes of the first channel label; and reading the data attributes of the first channel label when the principal label is equal to or has precedence over the first channel label, wherein the principal label includes a read label and a write label and at least one of a selection label, an addition label or a suppression label.
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