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:
Oct. 13, 2026
Filed:
Jun. 02, 2025
Samsung Sds Co., Ltd., Seoul, KR;
Kyu Young Choi, Seoul, KR;
Eun Kyung Kim, Seoul, KR;
Hyo Jin Yoon, Seoul, KR;
Ji Hoon Cho, Seoul, KR;
SAMSUNG SDS CO., LTD., Seoul, KR;
Abstract
According to an aspect of the present disclosure, there is provided a method for exchanging a key. The method being performed by a first communication device related to a first user, the method may comprise acquiring a first public key using an identifier of a second user, encrypting first data using the first public key, transmitting a second public key and the encrypted first data to a second communication device related to the second user, receiving encrypted second data and encrypted third data from the second communication device, decrypting the encrypted second data using a first secret key generated based on an identifier of the first user, decrypting the third data using a second secret key related to the second public key and generating a session key for communication with the second communication device, using the decrypted first data, second and third data.
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