via CNet : "Security researchers have discovered a way to steal cryptographic keys that are ... Smartphone News forum
Mobile Device Crypto Keys Potentially At Risk
via CNet: "Security researchers have discovered a way to steal cryptographic keys that are used to encrypt communications and authenticate users on mobile devices by measuring the amount of electricity consumed or the radio frequency emissions.
The attack, known as differential power analysis (DPA), can be used to target an unsuspecting victim either by using special equipment that measures electromagnetic signals emitted by chips inside the device or by attaching a sensor to the device's power supply, Benjamin Jun, vice president of technology at Cryptography Research, said on Tuesday. Cryptography Research licenses technology that helps companies prevent fraud, piracy, and counterfeiting.
An oscilloscope can then be used to capture the electrical signals or radio frequency emissions and the data can be analyzed so that the spikes and bumps correlate to specific activity around the cryptography, he said."
Full article here.
Kinda scary, but then again I dont carry around govm'nt secrets on mine, LOL