Unlock car with bluetooth and car key

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hi,

we looking redo of project in arduino. advice on components use, , trouble might run in to. project goes follows:

we want unlock car smartphone (eg iphone), in car, there box containig arduino chip, connected unlock functionality of car. want use bluetooth communicate car. want keep cheap possible.

quote
what basic arduino board should use?


the board needs relays to activate electronics , should able connect bluetooth module (and battery). should have capacity run encryption algorithm security..

quote
what bluetooth module should use?


the module should able connect board. consume lot of battery? have intuitive interface towards iphone , android? bluetooth recommended or have security issues?

i appreciate input community, first arduino project :-)

regards,
mathi

quote from: mathi on jun 24, 2013, 06:12 pm

it should have capacity run encryption algorithm security..


in view requirement factor of hundred more difficult rest of project put together. designing solution enables connect car wirelessly , unlock easy. designing solution doing secure massively harder.


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