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.

Date of Patent:
Jan. 02, 2024

Filed:

May. 21, 2021
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventor:

Younsung Chu, Yongin-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/083 (2013.01); H04L 9/0822 (2013.01); H04L 9/0825 (2013.01); H04L 9/0869 (2013.01); H04L 9/3247 (2013.01); H04L 9/3263 (2013.01);
Abstract

A method for performing key exchange for a security operation in a storage device includes generating, by a trusted third party (TTP), a first certificate based on a first user ID and first public key and generating a second certificate based on a second user ID and second public key. While the storage device is accessed by the first user ID, a first verification is performed on the second certificate based on a third certificate. When the first verification is successfully completed, a ciphering key is derived based on a first private key and the second public key. While the storage device is accessed by the second user ID, a second verification is performed on the first certificate based on the third certificate. When the second verification is successfully completed, the ciphering key is derived based on a second private key and the first public key.


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