Patent ID: 7673344
Filing Date: 2010-03-02
Classification: G06F,G06Q

Abstract:
1. A computer implemented method for a computer system having a memory and at least one processor, the method comprising: receiving, by the processor, an index derived from preselected data having a tabular structure, wherein the index defines the tabular structure of the preselected data, includes data corresponding to an encrypted version of the preselected data, and contains positioning information reflecting relative placement of data items within the tabular structure of the preselected data, the positioning information identifying rows and columns storing the data items of the preselected data; receiving, by the processor, information content; detecting, by the processor, in the information content, a sequence of content fragments that is indicative of containing a portion of the preselected data; determining, by the processor, whether a subset of content fragments within the sequence matches any sub-set of the preselected data using the index derived from the preselected data; and performing, by the processor, a policy enforcement action based on results of determining whether a subset of content fragments within the sequence matches any sub-set of the preselected data.