Totally Secure Non-Quantum Communications?

An anonymous reader writes "TEES is reporting that Dr Laszlo Kish, an associate professor at Texas A&M, has proposed a 'classical, not quantum, encryption scheme that relies on classical physical properties -- current and voltage. He said his scheme is absolutely secure, fast, robust, inexpensive and maintenance-free and relies on simultaneous encrypting of information by both the sender and the receiver.' The scheme uses properties similar to Johnson noise along with Kirchoff's Law to provide what he hopes to be an easier method of secure communications. Arxiv also has the full text [PDF Warning] of the paper."

Comments

A thing about security

[Midnight Thunder]

The best security exists in a world where nobody understands how it works or knows it exists. Taking that into account tomorrow's secure technology is secure with the knowledge and tools we have today, but may not be so ten years after the secure technology is in the wild.

The best you can hope for is being a few steps ahead of the people who want to take advantage of your provide data. This is not to say that working on security improvements is worthless, rather that you will always have to work on better technology, since nothing will be forever secure. Though in the event of a knowledge void, say after a critical war, all secure data is lost to everyone, even to the owners. A physical door is the realm of the understandable, secure data is less so.