Patent ID: 6393438
Filing Date: 2002-05-21
Classification: G06F,G06Q,Y10S

Abstract:
A method of creating a representation of a personal computer file, the method comprising:a. for each of at least some of a plurality of portions of the personal computer file: exclusive oring said portion with a different one of a plurality of first portions of a work area to produce a result; and storing the result in place of said different one of the plurality of first portions of the work area; b. for each of a plurality of second portions of the work area: retrieving a portion of a table responsive to said second portion of the work area; and storing the portion of the table retrieved in place of said second portion of the work area; c. following step b, dividing at least a portion of the work area into a first sub portion comprising a at least one third portion and a second sub portion comprising at least one fourth portion; d. exclusive oring each of the third portions of the work area with the fourth portions of the work area; and e. providing the first sub portion as the representation of the personal computer file.