Back to results
US 2014/0181528 A1Published application
File tamper detection
AssigneeCA, Inc.
InventorJaimini Ram
Life of this patent
Estimating the term…
Abstract
This disclosure relates generally to methods and systems for determining when a file has changed. According to one aspect of the present disclosure, a method of determining if contents of a file have changed can include determining if a digital signature created as a function of contents of the file has changed, and when the digital signature has changed, overlaying the contents of the file with a first mark that indicates the contents have changed and blocks a view of the contents of the file.
Claims20
A method of determining if contents of a file have changed comprising:
- determining if a digital signature created as a function of contents of the file has changed;
- and
- when the digital signature has changed, overlaying the contents of the file with a first mark that (1) indicates the contents have changed and (2) blocks a view of the contents of the file.
A system comprising:
- a digest module configured to create a digital signature as a function of the contents of a file;
- a comparator module configured to compare the digital signature with another digital signature, determine if the digital signatures are the same, and produce a binary indicator configured to indicate if the digital signatures are the same or different;
- and
- a watermark module configured to obscure the contents of the file with a mark indicates the contents of the file have changed when the binary indicator indicates that the digital signatures are different.
1 more element
A computer program product comprising:
- a computer readable storage medium having computer readable program code embodied therewith, the computer program code comprising:
- computer readable program code configured to:
- create a unique digital signature as a function of the contents of the file;
- associate the digital signature with the file;
- determine if the digital signature has changed;
- and
- when the digital signature has changed, overlay the contents of the file with a blank layer and a mark that indicates the contents have changed.
4 more elements
Dependencies are inferred from the claim text.