A computer data security system, including a file parser for determining if a computer file contains protected data, a file decrypter for decrypting encoded files, a file encrypter for re-encoding decrypted files that have been modified, a rights processor for determining data usage rights for a process...http://www.google.com/patents/US20050273600?utm_source=gb-gplus-sharePatent US20050273600 - Method and system for file data access within a secure environment
