Se­Cu­rity Pro­to­ColS By SCi­eN­tiStS out­fit­ted witH gPS aNd Blue­tootH to Pro­teCt Smart CarS


Sci­en­tists have cre­ated a se­cu­rity pro­to­col to pro­tect smart cars — equipped with GPS, blue­tooth and in­ter­net con­nec­tions — from be­ing hacked. The se­cu­rity pro­to­col pro­tects CAN in two ways. First, it au­then­ti­cates mes­sages sent through the net­work by cre­at­ing an au­then­ti­ca­tion code. This code al­lows nodes on the net­work to dif­fer­en­ti­ate be­tween a valid mes­sage and an at­tacker’s mes­sage. The sec­ond fea­ture pro­tects against re­play at­tacks, when a hacker at­tempts to breach the net­work by re­peat­edly send­ing mes­sages. The pro­to­col uses a time­stamp to cal­cu­late when the net­work last re­ceived mes­sage.

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