Patent ID: 8548170
Filing Date: 2013-10-01
Classification: H04L

Abstract:
1. A method to be performed in an electronic environment in which network communications occur involving packets and at least one processor and a memory element, comprising: monitoring security of a plurality of registered digital documents in a system, the monitoring including determining whether signatures associated with the registered digital documents are included in data propagating in network traffic of the system, wherein the signatures of the registered documents are maintained in a signature database, each signature being associated with at least one of the plurality of registered digital documents, and respective signatures are removed from the database upon determining that respective signatures are detected within the network traffic at a rate in excess of a threshold detection rate designated as a threshold percentage of all data objects detected in the network traffic; receiving a particular document, in the plurality of the registered digital documents, to be de-registered in response to an expiration of a time interval associated with an initial registration of the particular document; calculating a set of signatures associated with the received particular document; identifying, in the signatures stored in the signature database, at least one signature included in the set of calculated signatures; and removing from the signature database the at least one identified signature included in the set of calculated signatures associated with the particular document, wherein data in the network traffic detected to include a signature of a registered document is intercepted and data in the network traffic determined to not include a signature of a registered document is allowed to propagate unintercepted to its intended destination.