Black Echo

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Public-Key Encryption and the Government Panic Era

The real crisis was not that public-key cryptography existed. The crisis was that it escaped. Once strong cryptography could be described in public, implemented in software, and distributed through academic and commercial channels, the state was no longer deciding by itself who got modern secrecy. That is what triggered the government panic era.

Declassified / Nsa/historical record/2026-03-31
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SKIPJACK Encryption and the NSA Clipper Era

SKIPJACK was not the same thing as Clipper. It was the engine inside Clipper. That distinction matters because the real controversy of the era was never only about one cipher. It was about whether strong encryption would remain acceptable to the government only if the government kept a built-in path back in.

Declassified / Nsa/historical record/2026-03-31
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NSA-Approved Encryption and the Battle Over Privacy

NSA-approved encryption has never meant just one thing. At different times it has meant federally standardized encryption, export-licensed commercial encryption, escrow-enabled government access, and high-assurance algorithms approved for national security systems. This entry explains why those meanings kept colliding with privacy.

Declassified / Nsa/historical record/2026-03-30