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:
Nov. 12, 2024
Filed:
May. 01, 2024
Lg Electronics Inc., Seoul, KR;
University of Sao Paulo, Sao Paulo, BR;
Marcos A. Simplicio, Jr., Sao Paulo, BR;
Eduardo Lopes Cominetti, Sao Paulo, BR;
Harsh Kupwade Patil, Fremont, CA (US);
Jefferson E. Ricardini Fernandez, Sao Paulo, BR;
Marcos Vinicius M. Silva, Sao Paulo, BR;
LG Electronics Inc., Seoul, KR;
University of Sao Paulo, Sao Paulo, BR;
Abstract
Digital certificates are generated for devices by a Certificate Authority (CA), which communicates with devices via another entity—registration authority (RA)—so that the CA and RA cannot associate certificates with devices. Each certificate is associated with a public signature key, and with a public encryption key used by CA to encrypt the certificate to hide it from the RA. Both keys are derived by CA from a single key. For example, the signature key can be derived from the public encryption key rather than generated independently. However, high security is obtained even when the CA does not sign the encrypted certificate. Reduced bandwidth and computational costs are obtained as a result. Other embodiments are also provided.