SHA256SUM: Site to emulate it? [SOLVED]

[Amaponian]

I still don't understand the value SHA256SUM returns.
It is supposed to "Print or check SHA256 checksums", but I can't find a site on internet returning the same value when I calculate SHA256. I'm mainly interested in a site where I can get the same value I get when, in a Linux terminal, I write

ECHO test|SHA256SUM

---
Thank you.
Greetings from venezuela!

[some1]

Reason: echo test pipes test + a trailing newline to sha256sum
Try
on a website: test
and
in terminal:echo -n test|sha256sum
or printf test|sha256sum

[Amaponian]

Reason: echo test pipes test + a trailing newline to sha256sum
Try
on a website: test
and
in terminal:echo -n test|sha256sum
or printf test|sha256sum

Now everything makes sense, thank you.

[mikewalsh]

From what I understand, under normal circumstances you never CAN "duplicate" a SHA256SUM value.....anywhere.

The thing is generated at random, and is supposedly composed of enough numbers that anybody trying to crack it by brute force would never be able to; there are SO many combinations that it would take more than a lifetime to do so.

And then there's "salting" and "hashing".....about which this explains further:-

https://betterprogramming.pub/salting-a ... 6f5af83554

Having said which, it seems one of the things that is being touted about Nvidia's current flagship GPU, the RTX 4090, is it's ability to "brute-force" almost anything....

Mike.

[some1]

@mikewalsh:
While going offtopic-you may want to crack this:

Code: Select all

494baf0eca7090e669507b5b43fdae9140a6abec5484d5d2f6f51ebcb0fb8bf1

https://crackstation.net/

[Amaponian]

Incredible crack, I didnt know that could be done.
Still, SHA256 can be used for safety purposes, in a special way I use it.

Thanks for the información.