Bundesdruckerei Gmbh

Cv Cryptovision Gmbh

Klaus-Dieter Wirth

Frank Byszio

Matthias Schwan

Steffen Scholze

Frank Muller

Elke Filzhuth

Enrico Entschew

Danny Hesse

Thomas Mai

Ansgar Lohoff

Frank MÜLLER

The method includes authenticating a chip card terminal to a chip card by a chip card operating system, verifying the authorization of the chip card terminal to load executable program instructions by the chip card operating system, storing data in a predefined memory region of the NVM, which data indicate a successful execution of the authentication and the verification, by the chip card operating system, starting execution of a boot loader by the chip card operating system and interrupting the execution of the chip card operating system following the start of the boot loader, reading the data from the predefined memory region by the boot loader, loading the program instructions from the chip card terminal into the NVM by the boot loader on the precondition that the data indicate the successful authentication and verification in the predefined memory region.

Method for loading executable program instructions into a chip card during active operation

The invention relates to a method for generating a certificate for signing electronic documents by means of an ID token (), having the following steps: &#x2014;sending () a transaction request for a user to carry out a transaction, &#x2014;as a result of the sending of the transaction request, a check is carried out as to whether the certificate () is available and if this is not the case, carrying out the following steps: generating () an asymmetrical key pair consisting of a private key and a public key using an ID token, said ID token () being assigned to the user; storing () the generated asymmetrical key pair on the ID token, wherein at least the private key is stored in a protected memory region of the ID token; transmitting () the generated public key () to a first computer system, and generating () the certificate () by means of the first computer system for the public key.

Method for generating a certificate

Growing community of inventors

Berlin, Germany

Klaus-Dieter Wirth