this post was submitted on 10 Aug 2023
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[โ€“] [email protected] 62 points 1 year ago* (last edited 1 year ago) (16 children)

Anyone willing to drop some learning on a lay person? Is encrypted data less compressable because it lacks the patterns compression relies on?

Or, is it less secure to encrypt first because smart people things? I know enough about cryptography to know I know fuck all about cryptography.

[โ€“] [email protected] 34 points 1 year ago

Any good encryption should make data looks random. Looking for patterns in encrypted data is one of the most basic steps to break an encryption. Therefore, good encryption should make data almost uncompressable, as in it's so random that compression does not reduce the size.

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