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Originally Posted by bigman  It is not too difficult to clone these keys using a pc. A local locksmith to me (in UK) has all the gear to clone these so called smart keys. He charges the equivalent of 640RS to cut and program 1 key. |
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Originally Posted by bmdesai1987 THE IMMOBILISER, branded as iCATs (Intelligent Computerized Anti-Theft System), is an electronic system that works on digitally encrypted codes and hence is tamper-proof. Cars equipped with the iCATs have a secret code on the car key fob. This code is matched with the corresponding code on Electronic Control Unit (ECU) of the car. Only after the two codes match, the ECU, permits the engine to start. |
The description sounds like RSA Public/Private key encryption, similar to the secure certificate used for online secure encryption (HTTPS). Reverse engineering these keys can be extremely difficult.