Citrix Systems, Inc.
Secure file sharing using semantic watermarking

Abstract:

Methods and systems for identifying a source of leak of confidential information are described herein. The methods and systems related to a file sharing system that may generate a copy of a shared file that is unique each user. The file management system may determine a plurality of differences within each version of the file. A table of differences is maintained by the file management system, for comparison against any leaked version of the file. The file management system compares each generated version of the file against previously generated versions to ensure enough differences are included to determine a unique identity of the user associated with any leaked file.