Conversation
hrw@society.oftrolls.com

Marcin Juszkiewicz 🙃

@blog wrote nice text about encryption.

Easier to read on page than on mastodon.

https://shkspr.mobi/blog/2025/07/it-is-1939-and-you-want-to-use-public-key-cryptography/

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pavel

Pavel Machek

Reply to @hrw@society.oftrolls.com
@hrw @blog Well.. yes, one of failures was that Enigma used symetric crypto. More serious failure was that key space was basically 27^3, which is so small it can be broken by hand. There is important point author is missing: RSA is very, very, _very_ bad cipher and needs good symetric cypher to be useful. You can only safely encrypt big, random numbers using RSA.
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