Multi-level file representation corruption
View Patent ↗Methods and systems provide an approach for corrupting file representations at multiple different levels to provide a robust file corruption tool. In accordance with the described embodiments, file representation corruption can take place at a file's physical representation, logical representation and/or content representation.
1. A computer-implemented method comprising:
receiving a file having a file representation; and
corrupting the file representation at multiple levels,
wherein the multiple levels comprise a physical representation level, a logical representation level and a content representation level.
2. The method of claim 1 , wherein the physical representation level comprise a ZIP archive level.
3. The method of claim 1 , wherein the act of corrupting comprises corrupting a header of the physical representation level.
4. The method of claim 2 , wherein the act of corrupting comprises corrupting one or more fields of the header.
5. The method of claim 1 , wherein the act of corrupting comprises clipping a portion of the physical representation level.
6. The method of claim 1 , wherein the act of corrupting comprises corrupting interleaving of file portions at the logical representation level.
7. The method of claim 6 , wherein the act of corrupting comprises changing an interleaving structure at the logical representation level.
8. The method of claim 1 , wherein the act of corrupting comprises corrupting a directory structure at the logical representation level.
9. The method of claim 1 , wherein the act of corrupting comprises corrupting an index file at the logical representation level.
10. The method of claim 1 , wherein the act of corrupting comprises corrupting physical file content of a file at the content representation level.
11. The method of claim 1 , wherein the act of corrupting comprises corrupting an index file of a file at the content representation level.
12. One or more computer-readable media having computer-readable instructions thereon which, when executed by one or more processors, cause the processors to implement a method comprising:
receiving a file having a file representation;
corrupting the file representation at a physical representation level by corrupting a header or clipping a portion of the physical representation level;
corrupting the file at a logical representation level by corrupting an interleaving or directory structure at the logical representation level; and
corrupting the file at a content representation level by corrupting physical file content of the file at the content representation level.
13. The one or more computer-readable media of claim 12 , wherein the file comprises an XPS file.
14. One or more computer-readable media having computer-readable instructions thereon which, when executed by one or more processors, cause the one or more processors to implement a method comprising:
receiving an XPS file having a file representation;
corrupting the file representation at multiple levels, wherein the multiple levels comprise a physical representation level, a logical representation level and a content representation level, and wherein said act of corrupting comprises at least corrupting data at the logical or content representation level.
15. The one or more computer-readable media of claim 14 , wherein said act of corrupting comprises corrupting data at the physical representation level.
16. The one or more computer-readable media of claim 15 , wherein said act of corrupting comprises corrupting a header at the physical representation level.
17. The one or more computer-readable media of claim 15 , wherein said act of corrupting comprises corrupting markup associated with the XPS file.
18. The one or more computer-readable media of claim 15 , wherein said act of corrupting comprises corrupting a URI associated with the XPS file.
19. The one or more computer-readable media of claim 15 , wherein said act of corrupting comprises corrupting physical file content of a file at the content representation level.
20. The one or more computer-readable media of claim 15 , wherein said act of corrupting comprises corrupting a directory structure at the logical representation level.