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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.:

US 8935541 B1

PDFFull Text
Date of Patent:
Jan. 13, 2015

Filed:

Aug. 08, 2012

Method and apparatus for encrypting and processing data in flash translation layer

Applicants:

Chang-woo Min, Seoul, KR;

Jin-ha Jun, Seoul, KR;

Inventors:

Chang-Woo Min, Seoul, KR;

Jin-Ha Jun, Seoul, KR;

Assignee:

Samsung Electronics Co., Ltd, , KR;

Attorney:

The Farrell Law Firm, P.C.

Primary Examiner:

Aravind Moorthy

Int. Cl.
CPC ...
G06F 12/14 (2006.01); H04L 29/06 (2006.01); H04L 9/00 (2006.01); H04L 9/28 (2006.01); G06F 12/16 (2006.01); G06F 17/30 (2006.01); G08B 29/00 (2006.01); G06F 12/00 (2006.01); G06F 17/00 (2006.01); G06F 21/62 (2013.01); G06F 3/06 (2006.01); G06F 21/10 (2013.01); H04L 9/18 (2006.01); G06F 21/79 (2013.01); G11B 20/00 (2006.01); H04L 9/06 (2006.01); G06F 12/02 (2006.01); H04L 9/12 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1408 (2013.01); G06F 21/6209 (2013.01); G06F 3/0679 (2013.01); G06F 21/6218 (2013.01); G06F 2221/2107 (2013.01); G06F 21/10 (2013.01); H04L 9/18 (2013.01); G06F 21/79 (2013.01); G11B 20/0021 (2013.01); H04L 9/06 (2013.01); G11B 20/00086 (2013.01); G06F 12/0246 (2013.01); H04L 9/12 (2013.01);
Abstract

A method and apparatus for preventing a user from interpreting optional stored data information even when the user extracts the optional stored data, by managing data associated with a flash memory in a flash translation layer, the method comprising searching at least one page of the flash memory when writing data to the flash memory, determining whether authority information corresponding to respective searched pages includes an encryption storage function, generating, corresponding to respective searched pages, a page key according to an encrypting function when the authority information includes the encryption storage function encrypting the data using the generated page key and storing the encrypted data in the respective searched pages, and storing the data in the respective searched pages without encryption when the authority information does not include the encryption storage function.

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