The NSA promoted the 56-bit DES standard not just for secrecy, but because they possessed superior computing power to crack it. This created a "crude trapdoor" that only they could exploit, giving them access to encrypted data while locking others out.
Martin Hellman credits his willingness to pursue cryptography, which colleagues called "crazy," to his childhood experience of being an outsider. This mindset transformed external skepticism from a deterrent into an attraction, fostering the resilience needed for radical innovation.
The tension between public encryption and government access is not new. It is the third "Crypto War," following the 1970s fight over publishing rights and the 1990s battle over the Clipper Chip and key escrow. This history contextualizes today's privacy debates.
When threatened by the NSA, Martin Hellman presented his students' papers himself because Stanford's legal protection was guaranteed for him but not them. By absorbing the risk, he protected his students' careers while ensuring their work was recognized.
Breakthroughs like public-key cryptography often appear in multiple places at once because the underlying technological and conceptual components are finally available. Martin Hellman poetically calls this a "muse" whispering the idea to the few who are listening and willing to pursue a "crazy" thought.
Hellman advises that the fastest path to "saving the world" is often a detour. First, become successful and influential in a field to build the reputation, resources, and credibility needed to tackle larger societal problems effectively later on.
After losing a massive patent war over RSA encryption, Martin Hellman chose to reconcile with his adversary, concluding that "friends are better than enemies." This relationship-first approach ultimately led to mutual respect and support, proving more valuable than holding a grudge over lost money.
Colleagues, including leading professors, universally told Martin Hellman he was crazy to work on cryptography against the NSA. He notes this is common for transformative ideas, citing Nobel laureates who received similar dismissive feedback from their deans before their prize-winning work.
Martin Hellman's work didn't just annoy the NSA; it threatened the intelligence capabilities of adversaries like the Soviet Union. The risk wasn't just legal trouble but potential assassination by foreign agencies like the GRU, which also benefited from weak global encryption.