FIELD: transport engineering; prevention of unauthorized use of car appliances. SUBSTANCE: according to proposed method code combination applied to equipment is introduced directly into equipment. This code combination is aimed at providing activation of equipment. Basing on said code combination forming of control information is effected by irreversible coding method, and for unlocking of appliance, control information is compared with information stored in appliance memory. Method of asymmetrical coding, for instance, Revest-Shamir-Adleman method is used for coding. EFFECT: improved antitheft protection. 7 cl, 5 dwg
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