Quantum Computers Could Crack Existing Codes but Create Others Much Harder to Break

Quantum computers capable of cracking sophisticated codes will one day be created, but such systems also will be able to create more advanced codes, writes David Kielpinski, a professor at Griffith University’s Centre for Quantum Dynamic. Kielpinski notes the U.S. National Security Agency (NSA) has been financially supporting non-classified quantum computing research at universities since the 1990s because of its applications in code-breaking. In addition, NSA is working on quantum cryptography to develop new security methods capable of resisting code-breaking attempts by quantum computers. Kielpinski says quantum cryptography is more ready than quantum computing for real-world use, and commercial ventures already exist that use quantum cryptography for banks and governments. Quantum computers can simulate advanced materials, such as high-temperature superconductors, at the atomic level, which could lead to civilian uses. However, Kielpinski says political and financial considerations are likely to shape the future of quantum computing.

More info: The Conversation (02/11/14) David Kielpinski

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