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JPDC
2006

Virtual Leashing: Creating a computational foundation for software protection

8 years 6 months ago
Virtual Leashing: Creating a computational foundation for software protection
We introduce Virtual Leashing,1 a new technique for software protection and control. The leashing process removes small fragments of code, pervasive throughout the application, and places them on a secure server. The secure server provides the missing functionality, but never the missing code. Reverse engineering the missing code, even with full tracing of the program's execution and its communication with the server, is computationally hard. Moreover, the server provides the missing functionality asynchronously: the application's performance is independent (within reason) of the secure server's speed. For example, the server might reside on a slow inexpensive chip or a remote Internet server. Leashing makes only modest demands on communication bandwidth, space, and computation.
Ori Dvir, Maurice Herlihy, Nir Shavit
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2006
Where JPDC
Authors Ori Dvir, Maurice Herlihy, Nir Shavit
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