The History and Future of Cryptographic Systems: From Classical Secrecy to Post-Quantum Resilience
The History and Future of Cryptographic Systems: From Classical Secrecy to Post-Quantum Resilience Thesis Statement Cryptography has evolved from a military-controlled practice focused exclusively on message confidentiality into a mathematically rigorous, publicly accessible discipline that now addresses multiple security objectives. This transformation, catalyzed by Shannon’s foundational work, the public-key revolution of the 1970s, and the computerization of cryptanalysis, has created both unprecedented security capabilities and novel vulnerabilities. The field now faces an existential challenge from quantum computing, necessitating a fundamental shift toward post-quantum cryptography—a transition that will reshape digital infrastructure globally and require unprecedented coordination between government, industry, and academia. ...