FIELD: information technology.
SUBSTANCE: in domain containing multiple devices, the devices in domain shares common domain key, method of enabling an entity which is not domain member to create an object which can be authenticated and/or decoded using common domain key, the method contains step of providing an entity which is not domain member with diversified key which is produced using one-sided function form at least common domain key to create authentication data relating to the mentioned object and/or to encrypt the mentioned object, devices in the domain are configured so that the mentioned object could be authenticated and/or encoded using diversified key.
EFFECT: enhancement of functionality of access to objects for entities in domain due to use of diversified key which is obtained using one-sided function from common domain key.
12 cl, 3 dwg
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