“Systems built without requirements cannot fail; They merely offer surprises. Usually unpleasant!

Robert Morris, former Chief Scientist of the US National Security Agency (NSA), National Computer Security Center, 1995

"The future ability of quantum computers might be a decade or two away, their future ability to break public-key cryptography has important implications for the encryption of highly sensitive information today. For these applications, we must already design new public-key cryptosystems and one-way functions that are immune to quantum cryptanalysis."

ARDA, Report of the Quantum Information Science and Technology Experts Panel, 2004

"In the medium term, we need to be prepared for the eventuality that large quantum computers could be built: this would require an upgrade of most symmetric cryptographic algorithms and a completely new generation of public-key algorithms."

SecurIST, “D3.3 – ICT Security & Dependability Research beyond 2010: Final Strategy”, January 2007