cryptography

The preface of 'Crypto' outlines the tension between the expanding reach of global communication technologies and the erosion of privacy they cause. It introduces cryptography as a crucial tool for protecting private communications in the digital age, highlighting the historical suppression of cryptographic research by governments due to national security concerns. The chapter frames the ensuing struggle between individual privacy advocates—hackers, academics, and policy experts—and powerful government entities, ultimately suggesting that the privacy proponents prevailed.

The chapter discusses the evolution and significance of cryptography as a tool for privacy in the digital age, highlighting the tension between government secrecy and individual rights. It traces how cryptography, once suppressed by governments fearing security breaches, became a revolutionary technology empowering individuals to protect their communications against all intrusions, including those from state actors. The narrative contrasts the efforts of grassroots innovators with the resistance from powerful government entities, ultimately showing how the former prevailed.