Development system with methodology providing information hiding in executable programs
View Patent ↗A development system providing a method for information hiding in executable programs is described. In one embodiment, for example, a method of the present invention is described for hiding information in computer programs, the method comprises steps of: receiving first input comprising program modules for a computer program being created, the program modules including data and code; receiving second input comprising information to be hidden in the computer program; linking together the program modules to form an executable computer program, including determining pads necessary for aligning data and code; and hiding the second input in the executable computer program by storing portions of the second input at locations in the executable computer program intended for pads.
1. A method for hiding information in computer programs, the method comprising:
receiving first input comprising program modules for a computer program being created, said program modules including data and code;
receiving second input comprising information to be hidden in the computer program;
linking together the program modules to form an executable computer program, including determining pads necessary for aligning data and code;
hiding the second input in the executable computer program by storing portions of the second input at locations in the executable computer program intended for pads, wherein said second input is hidden in a redundant manner in the executable computer program, so that said second input may still be reconstituted when portions of the executable computer program have been modified, removed, or obliterated;
linking in additional modules comprising resource and debug info; and
hiding portions of the second input within said additional modules.
2. The method of claim 1 , wherein said program modules comprise object code modules that are to be linked together to form an executable computer program.
3. The method of claim 1 , wherein said second input comprises a data stream to be embedded in the computer program.
4. The method of claim 3 , wherein said data stream is encrypted before being hidden in the computer program.
5. The method of claim 4 , wherein said data stream is encrypted using asymmetric encryption technique.
6. The method of claim 4 , wherein said data stream is encrypted using symmetric encryption technique.
7. The method of claim 3 , wherein said data stream is compressed before being hidden in the computer program.
8. The method of claim 1 , wherein said second input comprises customer licensing information.
9. The method of claim 8 , wherein said customer licensing information is hidden in the computer program after receiving an online purchase request for the computer program.
10. The method of claim 1 , further comprising:
during the linking step, recording each pad's location and size in the executable computer program.
11. The method of claim 10 , further comprising:
from pad locations and sizes, creating a mask indicating where in the executable computer program said second input is hidden.
12. The method of claim 11 , further comprising:
using the mask, extracting portions of the second input stored among the pads; and
recombining the portions together to reconstitute the second input.
13. The method of claim 11 , wherein the hiding step includes:
using the mask, modifying the executable computer program after the linking step to replace various ones of the pads with portions of the second input.
14. The method of claim 11 , wherein the hiding step includes:
during the linking step, replacing various ones of the pads that were to be emitted with portions of the second input.
15. The method of claim 1 , wherein data and code alignment are required for execution of the computer program on a given processor architecture.
16. The method of claim 1 , wherein data and code alignment are required for efficient memory fetching during program operation.
17. The method of claim 1 , wherein said pads comprise non-executable, non-data filler bytes.
18. A system for hiding information in computer programs, the system comprising:
first input comprising program modules for a computer program being created, said program modules including data and code;
second input comprising information to be hidden in the computer program;
a linker for linking together the program modules to form an executable computer program, including determining pads necessary for aligning data and code;
a module for hiding the second input in the executable computer program by storing portions of the second input at locations in the executable computer program intended for pads, wherein said second input is hidden in a redundant manner in the executable computer program, so that said second input may still be reconstituted when portions of the executable computer program have been hacked;
a module for linking in additional modules comprising resource and debug info; and
a module for hiding portions of the second input within said additional modules.
19. The system of claim 18 , wherein said program modules comprise object code modules that are to be linked together to form an executable computer program.
20. The system of claim 18 , wherein said second input comprises a data stream to be embedded in the computer program.
21. The system of claim 20 , wherein said data stream is encrypted before being hidden, in the computer program.
22. The system of claim 21 , wherein said data stream is encrypted using asymmetric encryption technique.
23. The system of claim 21 , wherein said data stream is encrypted using symmetric encryption technique.
24. The system of claim 20 , wherein said data stream is compressed before being hidden in the computer program.
25. The system of claim 18 , wherein said second input comprises customer licensing information.
26. The system of claim 25 , wherein said customer licensing information is hidden in the computer program after receiving an online purchase request for the computer program.
27. The system of claim 18 , wherein the linker records each pad's location and size in the executable computer program.
28. The system of claim 27 , wherein the linker records a mask indicating where in the executable computer program said second input is hidden.
29. The system of claim 28 , further comprising:
a module for extracting portions of the second input stored among the pads using the mask, and recombining the portions together to reconstitute the second input.
30. The system of claim 28 , further comprising:
a module for modifying the executable computer program after linking to replace various ones of the pads with portions of the second input.
31. The system of claim 28 , wherein the linker replaces various ones of the pads that were to be emitted with portions of the second input.
32. The system of claim 18 , wherein data and code alignment are required for execution of the computer program on a given processor architecture.
33. The system of claim 18 , wherein data and code alignment are required for efficient memory fetching during program operation.
34. The system of claim 18 , wherein said pads comprise non-executable, non-data filler bytes.