Patent ID: 7669051
Filing Date: 2010-02-23
Classification: A61K,C07K,G06F,H04L

Abstract:
1. A method of securing data having one or more security sensitive words, characters or data objects in a computer system with multiple independent security levels, each level of said multiple security levels having a computer sub-network including a plurality of computer work stations coupled together via an independent communications network at an independent security level, said sub-networks connected together via a security guard computer, said security guard computer having separate memories designated as a remainder store and a plurality of extract stores corresponding to each level of said multiple security levels, the method of securing data comprising: extracting said security sensitive words, characters or data objects from said data to obtain extracted data at each said level of said multiple security levels and remainder data therefrom; storing said extracted data in a corresponding extract store for each said level of said multiple security levels and said remainder data in said remainder store; and, permitting reconstruction of said data via said extracted data at each said level of said multiple security levels and remainder data only in the presence of a predetermined security clearance commensurate with each said level of said multiple security levels.