The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2007
Filed:
Sep. 14, 2001
Scott Thomas Elliott, Raleigh, NC (US);
James Patrick Hoff, Raleigh, NC (US);
Christopher Scott Long, Chapel Hill, NC (US);
David Rivera, Durham, NC (US);
James Peter Ward, Raleigh, NC (US);
Scott Thomas Elliott, Raleigh, NC (US);
James Patrick Hoff, Raleigh, NC (US);
Christopher Scott Long, Chapel Hill, NC (US);
David Rivera, Durham, NC (US);
James Peter Ward, Raleigh, NC (US);
Lenovo (Singapore) Pte Ltd., Singapore, SG;
Abstract
A method, system and computer program product for securing decrypted files in a shared environment. A filter driver in a kernel space may be configured to control service requests to encrypted files stored in a shared area, e.g., a shared directory on a disk unit, accessible by multiple users. The filter driver may receive a service request to open an encrypted document in the shared area issued from an authorized user. Upon receiving the encrypted data, the filter driver may decrypt the encrypted data. The filter driver may subsequently store the decrypted data in a file in a non-shared area, e.g., a non-shared directory. The non-shared area may be accessible only by the authorized user that requested access to the encrypted file. By storing the decrypted data in a file in the non-shared area, a file once decrypted may be protected in a file sharing environment.