Method and system for querying certificate data using dynamical certificate references

摘要

The interrogation method has a public key encryption method used for encryption of at least part of the information to be transmitted in a communications network, a certification reference entered in an information receiver by a user using a home key and transmitted to a certification server for provision of certification information fed back to the information receiver. The certification reference is coded so that it changes upon subsequent use. An Independent claim for a system for interrogation of certification information is also included.