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:
Sep. 27, 2022
Filed:
Jan. 22, 2021
Penta Security Systems Inc., Seoul, KR;
Autocrypt Co., Ltd., Seoul, KR;
Myung Woo Chung, Seoul, KR;
Hyun Min Choi, Seoul, KR;
Sang Gyoo Sim, Seoul, KR;
Eui Seok Kim, Seoul, KR;
Duk Soo Kim, Seoul, KR;
Seok Woo Lee, Seoul, KR;
PENTA SECURITY SYSTEMS INC., Seoul, KR;
AUTOCRYPT CO., LTD., Seoul, KR;
Abstract
A pseudonym certificate management method, performed by a pseudonym certificate management apparatus interworking with an external server, may comprise: receiving, from the external server, a pseudonym certificate in a state locked based on a root value identifiable only by the external server; periodically receiving an unlocking key for the pseudonym certificate from the external server; activating the pseudonym certificate with the unlocking key; and when the activated pseudonym certificate is abnormal, deactivating the pseudonym certificate.