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. 29, 2013
Filed:
Oct. 29, 2009
Mukesh K. Sharma, Maharashtra, IN;
Amrish Shah, Maharashtra, IN;
Mukesh K. Sharma, Maharashtra, IN;
Amrish Shah, Maharashtra, IN;
Symantec Corporation, Mountain View, CA (US);
Abstract
A method for effectively removing access to individual files on magnetic tape media may include: 1) encrypting a file, 2) storing the encrypted file on a tape medium, 3) storing a cryptographic key for accessing the encrypted file within a cryptographic key block located at the end of the tape medium, and then, at a subsequent point in time, 4) removing access to the encrypted file by deleting the cryptographic key for the encrypted file from the cryptographic key block located at the end of the tape medium. Corresponding systems and computer-readable media are also disclosed.