In key management and key distribution, in addition to the certification authorities and the key distribution centers, there are also the keytranslation
centers (KTC). While key distribution centers distribute the keys
to the subscribers
, the key translation center decrypts the key of a subscriber and encrypts it with the key that has been agreed with another subscriber. In such a case, the key management works as a conversion center. The
This type of key-change center can be used to link different security areas that are under the control of different operators. In addition, areas with different security requirements can be formed and operated independently of each other.