Decrypt sha 512

[GaboBegue]

Hello guys:


I have been working on how to decrypt sha256 and sha512 for some time now.
Last week I managed to get to decipher the full 80 laps of the sha512.
My question is: How to decipher the message having the 80 turns deciphered?
Does anybody have an idea?

As soon as I finish doing it I will upload exactly as possible with Javascript and the code.

regards

[ABCbits]

I doubt you understand about hashing and encryption.

Both of them are different things and you can't get any data from hash alone. Hash useful to verify whether a message/file has been tampered or not and hash size always same no matter how big the message/file.

[HeRetiK]

No such think as decrypting a hash. You can try to brute-force it, yes, but short of a significant weakness or vulnerability there's no way to decrypt a hash.

Cryptographic hash functions are by definition one way. That is, unlike regular encryption, a cryptographic hash is irreversible. If you want to be able to encrypt and decrypt your data, you are looking for a cipher, not a hash.


Here's an npm package that might be of interest to you:
https://www.npmjs.com/package/crypto-js

Apart from various cryptographic hashes, this library also includes a handful of well known ciphers:
https://code.google.com/archive/p/crypto-js/


That being said, what do you want to achieve?

[razzbee]

Hashing is different from encryption, I have not heard about anyone breaking sha512 for now, even if possible, like md5 you will need the large rainbow table for your application to make reference. sha512 with salting too might be a little confusing even if its possible

[almightyruler]

If decrypting SHA256 or SHA512 to an arbitrary string was possible - without needing massive pre-built lookup tables to find the original source - you would have created an almost perfect compression algorithm.