If your cipher were secure, this image wouldn't have repeating patterns (2015)

Re:If your cipher were secure, this image wouldn't have repe... by Someone on Friday February 28, 2020 @08:16PM (#22447951)

There’s also the claim

> Crystalline employs information loss as the basis of its security.

If encryption loses information, there’s no way decryption can bring it back.

In the extreme

  def encrypt(s):
    return “(TOP SECRET)”

is totally secure, but also totally useless.

[ Parent | on HN ]

Re:If your cipher were secure, this image wouldn't have repe... by khazhoux on Saturday February 29, 2020 @03:47AM (#22449670)

Not totally useless. You just need the dual:

    def decrypt("(TOP SECRET)"):
      return s

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Re:If your cipher were secure, this image wouldn't have repe... by alexeiz on Tuesday March 03, 2020 @12:56AM (#22472183)

I know how to fix it. Blockchain!

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Re:If your cipher were secure, this image wouldn't have repe... by segfaultbuserr on Friday February 28, 2020 @11:19PM (#22448789)

Not useless. This is, in fact, the most widely used encryption algorithm in declassified government documents! /joke

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Re:If your cipher were secure, this image wouldn't have repe... by dreamcompiler on Saturday February 29, 2020 @11:24AM (#22451309)

I noticed this too. One of two things is going on:

a. The author cannot decrypt it either, unless he's cheating somehow, or

b. It's not really losing information and the author is lying.

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