Patent ID: 9064119
Filing Date: 2015-06-23
Classification: G06F,G06Q,H04L

Abstract:
1. A method of scanning information across a plurality of devices, comprising: obtaining a set of designated chunks of information; generating full source digests based on the designated chunks and then deriving abbreviated source digests from the full source digests; distributing the abbreviated source digests to different data-processing devices to allow individual ones of the data-processing devices to scan locally stored data units to determine which of said data units satisfy a specified matching criterion pertaining to at least one identified match to at least one of the abbreviated source digests, the scanning comprising generating full scan digests for the stored data units, deriving abbreviated scan digests from the full scan digests, and then comparing the abbreviated source digests to the abbreviated scan digests; receiving, by a central processing facility, a plurality of the full scan digests for the data units that satisfy the specified matching criterion; and the central processing facility comparing the full scan digests received from the data-processing devices to the full source digests so as to determine which corresponding data units satisfy a policy criterion.