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A smart phone can do pretty much anything a PC can. But, aside from password protection, phones have very little security—a real problem with more and more people using phones for online banking and shopping.
But researchers at Los Alamos National Lab hope quantum encryption can help. Quantum encryption typically requires a lot of processing power and covers only short distances. But Los Alamos says it's developed a minitransmitter that encodes the encryption key on a single photon. They call it the QKarD transmitter, short for Quantum Smart Card. Any change in the photon’s quantum information reveals an attempted hack and cancels the transaction.
QKarD faces a few challenges. You'd still need a password or some biometric security to make sure someone doesn't use your lost or stolen phone to make their own encrypted transactions. Also, Google's Wallet mobile payment service already uses encryption. It may not be as secure as quantum encryption, but many people may decide it’s good enough.
One thing’s for sure: we're going to need more mobile gadget security to keep a step ahead of info-hungry hackers.
—Larry Greenemeier
[The above text is a transcript of this podcast.]
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1 Comments
Add CommentWhat precisely is the risk that anyone thinks is mitigated by deploying quantum cryptography to smartphones? If it's a serious security proposal, then we would expect a Threat & Risk Analysis to point to QC as a sensible control for an identifiable vulnerability. Or is this instead a case of fundamental research being married too fast to something commercial and/or attention grabbing?
Reply | Report Abuse | Link to thisThe smartphone software industry is an appalling mess, littered with failures that belie a total lack of understanding of the 40 year old Software Crisis. Not a month goes by without another major recall of some payments app or other, or another example of malware, or just a bunch of dopey PIN capturing Trojans released into one of the less controlled app stores. In this environment, where coding is so fast and furious that programmers have forgetten to encrypt customers' PINs, some bright spark wants to implement quantum cryptography? What could go wrong?
@steve_lockstep