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:
Feb. 22, 2011
Filed:
Jan. 16, 2010
Alexander G. Tormasov, Moscow, RU;
Serguei M. Beloussov, Singapore, SG;
Maxim V. Tsypliaev, Moscow, RU;
Maxim V. Lyadvinsky, Moscow, RU;
Alexander G. Tormasov, Moscow, RU;
Serguei M. Beloussov, Singapore, SG;
Maxim V. Tsypliaev, Moscow, RU;
Maxim V. Lyadvinsky, Moscow, RU;
Acronis Inc., Tortola, VG;
Abstract
A method of securely deleting data from a storage medium includes generating a bitmap that corresponds to unused locations on the storage medium; initiating a wiping process that wipes the unused locations, where the wiping process runs asynchronously with a application; wiping the unused locations; and updating the bitmap to reflect that the unused locations have been wiped. The wiping replaces data at the unused locations with random sequences, with pseudo-random sequences, with data generated by a secure deletion algorithm, with application data from the application, or with all zeros. The wiping includes repeated writing of predetermined sequences to the unused locations. The wiping replaces data at unused locations that represent portions of any of blocks, clusters and sectors, and can wipe any metadata associated with files previously stored at any of the unused locations. Upon a request for access of data from a wiped location, data that does not correspond to data originally stored at the wiped location can be returned.