FIELD: physics, computer engineering.
SUBSTANCE: invention relates to activation of services using algorithmically configured keys. The method of user subscription to the service comprises: identification in the computer of issuer of the user who is authorized for subscription to a service on the basis of a criteria determined by an issuer; extraction by a computer of the issuer of data associated with the user and shared data element which is shared by the issuer computer and the service provider computer; formation of the first activation code by the issuer computer and sending the first activation code to the user; and the user sends the first activation code and data associated with the user to the service provider computer; and the service provider computer forms the second activation code and authorizes the user for subscription to service, if the first and the second activation codes are identical.
EFFECT: prevention of violation of security of data processing system.
20 cl, 9 dwg
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