Vernam Cipher Tutorials and Guides

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Vernam Cipher & the One-Time Pad: The Only Theoretically Unbreakable Encryption

A comprehensive guide to the Vernam cipher and one-time pad -- the only encryption system proven mathematically unbreakable. Covers the history from AT&T Bell Labs to Cold War espionage, Claude Shannon's proof of perfect secrecy, the strict requirements that make it work, and why key reuse destroyed Soviet intelligence in the VENONA project.

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