FIELD: safety.
SUBSTANCE: invention relates to terminals safety. Method accomplished by server, wherein encrypted message is generated, corresponding to i-th verification stage, which represents such verification stage of all n verification stages, previously established and arranged in preset order, for terminal verification, 1≤i≤n; sending encrypted message to terminal; receiving call request from terminal in order, that to call i-th verification stage; performing i-th verification stage, if call request is call request, initiated according to encrypted message, corresponding to i-th verification stage; calculating i=i+1 and generating encrypted message, corresponding to i-th verification stage, if i-th verification stage is conducted successfully, and i≠n; sending results of not successful verification to terminal, if i-th verification stage fails during verification; and sending results of successful verification to terminal, if i-th verification stage is conducted successfully and i=n.
EFFECT: technical result consists in improvement of efficiency of protection against terminals counterfeit.
24 cl, 11 dwg
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