Who are the heroes of Cryptonomicon?

I'm curious, could you elaborate on the heroes featured in Cryptonomicon? Are they characters who embody the spirit of the digital age, or perhaps they're individuals who've made significant contributions to the world of cryptocurrency and finance? Are they fictional creations or do they have real-life counterparts? I'm eager to know more about these enigmatic heroes and their roles within the intricate narrative of Cryptonomicon.