“Briefly and simply, assurance work makes a user or a creditor more confident that the system works as intended without flaws, without surprises, even in the presence of malice.” … “The major shortfall is absence of assurance or safety mechanisms in software.  If my car crashed as often as my computer does, I’d be dead by now.”

Brian Snow, Former Technical Director of the US National Security Agency (NSA), "We need Assurance", AusCERT 2008

“Assurance is best addressed during the initial design and engineering of security systems, NOT as an after market patch. The earlier you include a security architect in your design process, the greater the likely hood of a successful and robust design. As the quip goes, he who gets to the (module) interface first wins.”

Brian Snow, Former Technical Director of the US National Security Agency (NSA), "We need Assurance", AusCERT 2008

“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