Cracking Playfair Ciphers (2023)

Posted4 months agoActive3 months ago

aebtebeten

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oranlooney.comTechstory

calmpositive

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CryptographyCiphersCodebreaking

Key topics

Cryptography

Ciphers

Codebreaking

The article explains how to crack Playfair ciphers, a type of encryption technique, and the discussion revolves around the technical details and appreciation of the author's work.

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01Story posted
Sep 27, 2025 at 9:13 AM EDT
4 months ago
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02First comment
Sep 28, 2025 at 9:04 PM EDT
1d after posting
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1 comments in 33-36h
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04Latest activity
Sep 28, 2025 at 9:04 PM EDT
3 months ago
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Discussion (1 comments)

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gsf_emergency_2

3 months ago

>One surprising thing I learned is that ChatGPT can solve the word segmentation problem quite well, and it can even add punctuation and capitalization back into the message. While LLMs are far too slow to participate in the performance-intensive crack (we can use simpler heuristics like trigrams for that,) their ability to make semantic sense of partially mangled text might still be useful in automating the “sense of rightness” which hitherto has been left to human cryptographers.

Also. Plot device in Cryptonomicon (iirc)

Lagniappe https://www.amazon.com/Codes-Villains-Mystery-Stories-Cipher...

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ID: 45395452Type: storyLast synced: 11/17/2025, 12:03:11 PM

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