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GPS Tracking Without a Warrant Declared Legal 926

jnaujok writes "The Ninth Circuit court has declared that attaching a GPS tracker to your car, as it sits in your driveway, or by extension on a public street, and then using it to monitor every one of your movements, is totally legal, and can be performed by the police without needing a warrant. So, if you live in the Western United States, big brother has arrived."

1978 Cryptosystem Resists Quantum Attack 185

KentuckyFC writes "In 1978, the CalTech mathematician Robert McEliece developed a cryptosystem based on the (then) new idea of using asymmetric mathematical functions to create different keys for encrypting and decrypting information. The security of these systems relies on mathematical steps that are easy to make in one direction but hard to do in the other. Today, popular encryption systems such as the RSA algorithm use exactly this idea. But in 1994, the mathematician Peter Shor dreamt up a quantum algorithm that could factorise much faster than any classical counterpart and so can break these codes. As soon as the first decent-sized quantum computer is switched on, these codes will become breakable. Since then, cryptographers have been hunting for encryption systems that will be safe in the post quantum world. Now a group of mathematicians have shown that the McEliece encryption system is safe against attack by Shor's algorithm and all other known quantum algorithms. That's because it does not depend on factorisation but gets its security from another asymmetric conundrum known as the hidden subgroup problem which they show is immune to all known quantum attacks."

iPhone App Causes Google To Shut Down SMS Service 420

An anonymous reader writes "A few days ago, Inner Fence released a paid iPhone app called Infinite SMS, which let iPhone users employ Google's free SMS gateway to send SMS messages without paying their service providers. The resulting surge in traffic on Google's SMS gateway forced Google to block all third-party applications from using the free SMS feature — including Google's own GTalk client."

New Electrode Lets Batteries Charge In 10 Seconds 348

Al writes "A new lithium-ion electrode allows batteries to be charged and discharged in 10 seconds flat. Developed by Gerbrand Ceder, a professor of materials science at MIT, it could be particularly useful where rapid power bursts are needed, such as for hybrid cars, but also for portable electronic devices. In testing, batteries incorporating the electrodes discharged in just 10 seconds. In comparison, the best high-power lithium-ion batteries today discharge in a minute and a half, and conventional lithium-ion batteries, such as those found in laptops, can take hours to discharge. The new high rate electrode, the researchers calculate, would allow a one-liter battery based on the material to deliver 25,000 watts, or enough power for about 20 vacuum cleaners."

National Ignition Facility Fires 192-Beam Pulse 438

An anonymous reader writes "The construction and test firing of the National Ignition Facility have been completed. NIF was designed as the first facility ever to achieve self-sustaining nuclear fusion and, in particular, to reach the point of ignition in which more energy is generated from the reaction than went into creating it. While the recent 192-beam pulse only produced 80 kilojoules worth of energy, all signs point to NIF being able to reach an order of magnitude higher (PDF) than that in the coming year."

We all agree on the necessity of compromise. We just can't agree on when it's necessary to compromise. -- Larry Wall