“New concepts for quantum computer implementations, algorithms, and advances in the theoretical understanding of the physics requirements for quantum computers appear almost weekly in the scientific literature.”

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

Public key crypto key exchanges (RSA, D&H, ECC) would be ‘flat-lined’ under a quantum computer attack … "Open Problem”

Brian Snow, Former Technical Director of the US National Security Agency (NSA), Public Key Cryptography 30th Anniversary Conference, Dec 2006

“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

"There is a good chance that large quantum computers can be built within the next 20 years.  This would be a nightmare for IT security if there are no fully developed, implemented, and standardized post-quantum signature schemes."

Prof. Johannes Buchmann, et al, “Post-Quantum Signatures”, Oct 2004, Technische Universität Darmstadt

"My colleagues at MIT and I have been building simple quantum computers and executing quantum algorithms since 1996, as have other scientists around the world. Quantum computers work as promised. If they can be scaled up, to thousands or tens of thousands of qubits from their current size of a dozen or so, watch out!”

Prof Seth Lloyd of MIT, MIT Review 2008

“Never underestimate the attention, risk, money and time that an opponent will put into reading traffic.”

Robert Morris, former Chief Scientist of the US National Security Agency (NSA), National Computer Security Center, "Crypto '95 invited talks by R. Morris and A. Shamir", 1995

"Many applications stay in use for much longer than anticipated, but during the extended lifetime they will be functioning in an environment for which they have not been designed, resulting in completely new vulnerabilities and risks."

"One often hears recommendations for key-sizes of public-key cryptosystems needed to obtain security for 30 years and even 50 years. Anyone wanting a real security of this magnitude should probably take the construction of the quantum computer into consideration."

ECRYPT, “D.PROVI.3 – First Summary Report on Unconditionally Secure Protocols”, January 2005

"But conventional security is not enough. The complexity of today's operational environment means organisations must embrace a level of business resilience that is normally associated with the protection of critical national infrastructure."

Detica, a BAE Systems Company

“a significant breakthrough in quantum computation would spell doom for all these systems (ECC-192 or RSA-2048).”

European Network of Excellence for Cryptography, "D.AZTEC.2 Alternatives to RSA", July 2005

"Even a relatively small quantum computer, one that had a few tens of thousands of qubits, could consider so many different values at once that it would be able to break all known [ed: RSA, D&H, ECC, AES-128] codes commonly used for secure Internet communication.”

Prof Seth Lloyd of MIT, MIT Review 2008

"Many crypto-systems considered robust have been broken after a certain amount of time (between 10-20 years).  ... We need to build crypto-systems that offer long term security, for example for protecting financial and medical information (medical information such as our DNA may be sensitive information with impact on our children, our grandchildren and beyond)."

“The software security industry today is at about the same stage as the auto industry was in 1930" ... "it looks fast, goes nice but in an accident you die.” ... "The major shortfall is absence of assurance (or safety) mechanisms in software. If my car crashed as often as my computer does, I would be dead by now."

Brian Snow, Former Technical Director of the US National Security Agency (NSA), "We need assurance!", 1999-2008

“When will we be secure? Nobody knows for sure – but it cannot happen before commercial security products and services possess not only enough functionality to satisfy customers’ stated needs, but also sufficient assurance of quality, reliability, safety, and appropriateness for use. Such assurances are lacking in most of today’s commercial security products and services.”

Brian Snow, Former Technical Director of the US National Security Agency (NSA), "We need Assurance", 2005

"Unfortunately, the security issues of a technology near the end of its lifetime are typically overlooked.  The best known example is that of cryptographic keys and algorithms which may need to offer in some cases security for 50 to 100 years."

"Given their power to intercept and disrupt secret communications, it is not surprising that quantum computers have the attention of various U.S. government agencies.  The National Security Agency, which supports research in quantum computing, candidly declares that given its interest in keeping U.S. government communications secure, it is loath to see quantum computers built. On the other hand, if they can be built, then it wants to have the first one.”

Prof Seth Lloyd of MIT, MIT Review 2008

“Build-in Security: Ensure that security is considered and built into the design of new infrastructure, so that our critical assets are protected from the start and more resilient to naturally-occurring and deliberate threats throughout their life-cycle."

Obama-Biden Plan, Agenda: Homeland Security, December 2008