FIELD: systems and method for controlling transfer of keys for decoding or access to encoded information.
SUBSTANCE: each one of variants of information protection systems for controlling access to protected information has hardware means for storing at least one data element, including decoding key and appropriate information protection code, while information protection code sets number of operations of passage of decoding key, and first user, connected to encoded information, can determine through information protection code, whether second user can transfer code for information protection to third user, while number of generation of data is requested each time after receipt of query for transferring decoding key to another user and is decreased for one unit for each request, and as soon as it reaches zero, system denies all further requests.
EFFECT: improved level of information protection.
3 cl, 6 dwg
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