METHOD AND DEVICE FOR CRYPTOGRAPHICALLY PROTECTED DATA TRANSMISSION BETWEEN A FIRST DEVICE AND A SECOND DEVICE

摘要

The invention relates to a method for cryptographically protected data transmission between a first device (FD4; GW) and a second device (FD5), comprising the following steps: - generating security information in the first device and making said security information available, - transferring data between the first and the second device via a data transmission interface (N), which data is cryptographically protected with the aid of the security information, if the security information has been verified as permissible and/or valid, - otherwise, physically separating the data transmission interface (N) to the second device.