Flaw found in quantum code

Article Abstract:

Two separate teams have found a theoretical flaw in a quantum cryptography scheme known as bit commitment. The quantum principle of entanglement, by which one photon in a pair reveals information about the other, makes it possible for the sender to change the message.

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New attacks breach computer codes

Article Abstract:

Computer security experts have succeeded in breaking a number of encryption systems previously believed impregnable, including public-key and secret-key systems, by observing computer functions. However, this does not mean that cryptosystems are worthless.

Methods, Public key encryption, Access control (Computers), Computer access control, Code breaking

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The subtle pull of emptiness

Article Abstract:

Physicist Steven Lamoreaux competed the first successful measurement of the Casimir force, a pressure produced by empty space. His work confirms the zero-point energy described by Max Planck and Werner Heisenberg in the 1920s.

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