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:
Jan. 07, 2025
Filed:
Oct. 30, 2015
Mike Bobinski, Bonn, DE;
Jürgen Pabel, Cologne, DE;
Mike Bobinski, Bonn, DE;
Jürgen Pabel, Cologne, DE;
Deutsche Post AG, Bonn, DE;
Abstract
A first installation stores a secret key of a user and a second installation provides encrypted data for the user. In order that a user apparatus can decrypt the encrypted data, the apparatus creates a one-time password, encrypts the one-time password by means of a public key of the first installation and causes the second installation to retrieve the secret key of the user from the first installation by means of the encrypted one-time password and a key identification allocated to the user in the second installation. The first installation decrypts the one-time password, searches for the secret key based on the key identification, encrypts it with the one-time password and transmits the encrypted secret key to the apparatus via the second installation. There, the secret key of the user is decrypted by means of the one-time password and is used for decrypting the encrypted data.