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Researchers Crack 3G Network Encryption
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Just two weeks after researchers broke the encryption inherent to GSM networks comes word that another team has cracked 3G encryption.

The attack takes just a few hours on a typical PC, reports Ars Technica. That's enough time to crack 3G's KASUMI system, which is based on a simplified type of Fiestel encryption called MISTY (pictured; good luck with that.) MISTY uses multiple keys and a recursive, multi-round encryption process.

The "simplified" KASUMI algorithm was supposed to make it "faster and more hardware-friendly" without compromising security. But as the report indicates, it seems that's no longer the case. This doesn't mean that every AT&T and T-Mobile cell phone is suddenly insecure; a research environment is very different than the real world. But it's food for thought nonetheless.

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