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Medieval Encrypted Letter Decoded
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Medieval Encrypted Letter Decoded

Apr 27, 2026 • Source: schneier.com • Feed: schneier.com

Medieval Encrypted Letter Decoded

Sent by a Spanish diplomat. Apparently people have been working on it since it was rediscovered in 1860.

Tags: history of cryptography

Posted on April 27, 2026 at 7:04 AM • 0 Comments

Original Source: https://www.schneier.com/blog/archives/2026/04/medieval-encrypted-letter-decoded.html

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