Scream cipher • Hacker News Board

Re: Scream cipher

#11

Post by blueflow » Sat, Sep 20, 2025, 10:39 AM UTC

andy99 wrote: post #6

blueflow wrote: post #3

... in the same sense that ROT13 or base64 would be a cipher.

Yes https://en.m.wikipedia.org/wiki/Substitution_cipher

First sentence:

> with the help of a key

So, where is the key?

Re: Scream cipher

#12

Post by shakna » Sat, Sep 20, 2025, 10:40 AM UTC

blueflow wrote: post #11

andy99 wrote: post #6

Earlier quoted context omitted.

Yes https://en.m.wikipedia.org/wiki/Substitution_cipher

First sentence: > with the help of a key So, where is the key?

The key is the data table, representing which each character encodes to or from.

Re: Scream cipher

#13

Post by bradrn » Sat, Sep 20, 2025, 10:41 AM UTC

blueflow wrote: post #11

andy99 wrote: post #6

Earlier quoted context omitted.

Yes https://en.m.wikipedia.org/wiki/Substitution_cipher

First sentence: > with the help of a key So, where is the key?

In the code in this article, the key is the mapping stored in ‘CIPHER’.

Re: Scream cipher

#14

Post by JdeBP » Sat, Sep 20, 2025, 10:41 AM UTC

blueflow wrote: post #11

andy99 wrote: post #6

Earlier quoted context omitted.

Yes https://en.m.wikipedia.org/wiki/Substitution_cipher

First sentence: > with the help of a key So, where is the key?

First, second, and third statements of the provided source code.

Re: Scream cipher

#15

Post by lambdaone » Sat, Sep 20, 2025, 10:42 AM UTC

permo-w wrote: post #9

ginko wrote: post #5

Now pack even more info in each character with Zalgo text.

am I unusual in not really seeing the "creepiness" of zalgo text?

Think of it as representing something like the letters actively 'creeping' and giving off tendrils of darkness. Does this help?

Re: Scream cipher

#16

Post by Retr0id » Sat, Sep 20, 2025, 10:44 AM UTC

ginko wrote: post #5

Now pack even more info in each character with Zalgo text.

zalgo256: https://gist.github.com/DavidBuchanan314/07da147445a90f7a049...

Re: Scream cipher

#17

Post by JdeBP » Sat, Sep 20, 2025, 10:44 AM UTC

andy99 wrote: post #6

blueflow wrote: post #3

... in the same sense that ROT13 or base64 would be a cipher.

Yes https://en.m.wikipedia.org/wiki/Substitution_cipher

… and no, since neither the enciphering nor the deciphering do a 1:1 mapping for all possible input code points.

Re: Scream cipher

#18

Post by blueflow » Sat, Sep 20, 2025, 10:47 AM UTC

JdeBP wrote: post #14

blueflow wrote: post #11

Earlier quoted context omitted.

First sentence: > with the help of a key So, where is the key?

First, second, and third statements of the provided source code.

Like i said, by these measurements, base64 would also be a cipher.

Re: Scream cipher

#19

Post by amenhotep » Sat, Sep 20, 2025, 10:51 AM UTC

JdeBP wrote: post #17

andy99 wrote: post #6

Earlier quoted context omitted.

Yes https://en.m.wikipedia.org/wiki/Substitution_cipher

… and no, since neither the enciphering nor the deciphering do a 1:1 mapping for all possible input code points.

That's not a requirement. Pigpen is a substitution cipher.

Re: Scream cipher

#20

Post by omnicognate » Sat, Sep 20, 2025, 10:57 AM UTC

blueflow wrote: post #18

JdeBP wrote: post #14

Earlier quoted context omitted.

First, second, and third statements of the provided source code.

Like i said, by these measurements, base64 would also be a cipher.

And people are telling you yes, they (rot13 and base64) are indeed ciphers. What's the confusion?