31 Aug '12, 5pm

How to secure the smart meter

So where does the attacker look next? The communication channel. To date, most of the dialog on smart grid security has focused on the communication channel, and most systems deployed today use strong cryptographic technology to protect the data and commands while in transit between smart grid endpoints and the utility command centers. To successfully attack the communication channel, one needs to discover the secret encryption or authentication keys. Reliable, publicly known communication protocols will not share the secret keys, meaning an attacker needs to either (1) discover the secret keys from the utility or from the endpoint or (2) brute force attack the encryption/authentication scheme of the channel. Note that option 1 is actually not an attack on the channel itself, but an attack on the other major components of the grid. A brute force attack (option 2) is not li...

Full article: http://www.maxim-ic.com/app-notes/index.mvp/id/5337

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