“Consider the use of smart cards ... for especially critical functions.  Although more costly than software, when properly implemented the assurance gain is great.  The form-factor is not as important as the existence of an isolated processor and address space for assured operations – an ‘Island of Security,’ if you will.  Such devices can communicate with each other through secure protocols and provide a web of security connecting secure nodes located across a sea of insecurity in the global net.”

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

“Advances have often been done in steps, and beyond approximately 10 years into the future, the general feeling among ECRYPT partners is that recommendations made today should be assigned a rather small confidence level, perhaps in particular for asymmetric primitives.”

European ECRYPT Network of Excellence, “Yearly Report on Algorithms and Key Lengths (2007-2008)", 2008

“It's not good enough to have a system where everyone (using the system) must be trusted, it must also be made robust against insiders!”

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

Florence Luy asks the question: "Is the writing on the wall for 1024-bit (RSA) encryption?"
Dutch mathematician Hendrik Willem Lenstra: "The answer to that question is an unqualified yes."

Florence Luy, Hendrik Lenstra, “A mighty number falls”, 21 May 2007, École Polytechnicque Fédérale de Lausanne

"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."

"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

“We are a cyber nation. The U.S. information infrastructure--including telecommunications and computer networks and systems and the data that reside on them--is critical to virtually every aspect of modern life. This information infrastructure is increasingly vulnerable to exploitation, disruption, and destruction by a growing array of adversaries.”

The National Coordination Office (NCO) for Networking Information Technology Research and Development (NITRD), Federal Register: December 30, 2008 (Volume 73, Number 250).

"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

"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

"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

“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

"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

"One should not assume that stakeholders do not care about their security merely because they do not understand the consequences of certain actions. The perception of risk can vary significantly from actual risk and, in the short term, convenience may lead some early adopters to make hazardous decisions."

"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

“The time needed to factor an RSA integer is the same order as the time needed to use that same integer as modulus for a single RSA encryption.   In other words, it takes no more time to break RSA on a quantum computer (up to a multiplicative constant) than to use it legitimately on a classical computer.”

Professor Gilles Brassard,  "Quantum Information Processing: The Good, the Bad and the Ugly", 1997