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The '''cypherpunk movement''' is a political and technological movement that emerged in the late 1980s and early 1990s around the conviction that [[cryptography]] is a fundamental tool for protecting individual privacy and political freedom against state and corporate surveillance. Rooted in the libertarian and anarchist traditions, cypherpunks treated the mathematics of [[public-key cryptography]] not merely as a technical achievement but as a structural shift in the balance of power between individuals and institutions. The movement's foundational text, Eric Hughes's 1993 'A Cypherpunk's Manifesto,' argued that privacy is not secrecy but the power to selectively reveal oneself to the world — a definition that reframes cryptographic freedom as a precondition for authentic human relationships rather than a tool for criminal evasion.

Cypherpunks developed and deployed technologies that later became mainstream internet infrastructure: anonymous remailers, digital cash systems, and privacy-preserving communication protocols. The movement's influence persists in contemporary debates about [[cryptographic backdoor|encryption backdoors]], mass surveillance, and the architecture of digital identity. The cypherpunk premise — that code can be law, and that mathematical constraints can substitute for political trust — remains one of the most consequential and contested ideas in the politics of technology.

[[Category:Cryptography]] [[Category:Politics]] [[Category:Technology]]