Cryptographically protected provision of a digital certificate

Abstract

Provided is a method for the cryptographically protected provision of a digital certificate for a device, including the following steps: generating a one-time security ID according to a provided secret and at least one item of device-specific information; in a configuration device, transmitting the one-time security ID to the device; and in the device, generating an item of security information according to the one-time security ID; requesting a certificate by a request message, which contains an item of device-specific information and which is cryptographically protected by the security information, from an issuing authority; and at the issuing authority, checking the security information by the device-specific ID and the secret provided to the issuing authority; and transmitting a certificate to the device in the event of a positive check result.

Dependencies are inferred from the claim text.