If the National Security Agency had wanted to make sure that strong encryption would reach the masses, it couldn't have done much better than to tell the cranky geniuses of the world not to do it. Author Steven Levy, deservedly famous for his enlightening Hackers, tells the story of the cyberpunks, their foes, and their allies in Crypto. From the determined research of Whitfield Diffie and Marty Hellman in the face of the NSA's decades-old security lock, to the commercial world's turn-of-the-century embrace of encrypted e-commerce, Levy finds drama and intellectual challenge everywhere he looks. Though he may write, "Behind every great cryptographer, it seems, there is a driving pathology", his respect for the mathematicians and programmers who spearheaded public key encryption as the solution to Information Age privacy invasion shines throughout. Even the governmental bad guys are presented more as hapless control fetishists lacking the prescience to see the inevitability of strong encryption as more than a conspiracy of evil.Each cryptological advance made outside the confines of the NSA's Fort Meade complex was met with increasing legislative and judicial resistance. Levy's storytelling acumen tugs the reader along through mathematical and legal hassles that would stop most narratives in their tracks--even the depressingly silly Clipper chip fiasco is made vibrant by his words. Hard-core privacy nerds will value Crypto as a review of 30 years of wrangling; those readers with less familiarity with the subject will find it a terrific and well-documented launching pad for further research. From notables like Phil Zimmerman to obscure but important figures such as James Ellis, Crypto dishes the dirt on folks who know how to keep a secret. --Rob Lightner