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:
Mar. 19, 2019
Filed:
Jul. 28, 2015
Giesecke & Devrient Gmbh, München, DE;
Frank Schäfer, Puchheim, DE;
Ullrich Martini, München, DE;
GIESECKE+DEVRIENT MOBILE SECURITY GMBH, Munich, DE;
Abstract
A PKI key pair comprising a private key and a public key is arranged for the end device. The public key is stored at the communication partner. The communication partner is arranged to provide a session key, encrypt data using the session key, encrypt the session key using the public key and convey the encrypted data to the end device. The communication system is further characterized in that it comprises a server system, remote from the mobile end device, in which the private key is stored in a secure environment. For this, the communication partner is furthermore arranged to transmit the encrypted session key to the server system. Moreover, the server system is arranged to decrypt the session key for the end device with the private key and to transmit it in decrypted form to the end device for decrypting the data.