dxdt.ru: занимательный интернет-журнал

Вот здесь предлагают криптосистему на обмене лазерными лучами, в чём-то похожую на ранее прошумевшую схему с четырьмя резисторами:

We propose and analyze a new concept for secure key distribution based on establishing laser oscillations between the sender and receiver. Compared to quantum mechanics based systems, our scheme allows for significantly higher key-establishing rates and longer ranges. By properly designing the laser structure, it is possible to increase the difficulty of eavesdropping almost arbitrarily, thus making our scheme an intriguing alternative and a complementary technology to quantum key-distribution systems.

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