Why don't they just make md5 hashes reversible for maximum

>>56416870
>he thinks md5 hashes are unique

>>56417021
Why don't they just make sha512 hashes reversible for maximum file compression??

>>56417067
Because none of the actual data from the source ends up in the hash, so to make it reversible it would no longer be sha/md, it would no longer be the size it is.

The closest we have gotten is pigzip, and it still has some issues.

>Why don't they just make hashes not hashes so they can store data.
Probably because that isn't how that works

>>56416870
A hash by definition is a one way function.

They serve, among other purposes, to create a "signature" from a data set to check the integrity of said set.

>>56417067
how would that be maximum? an md5sum is already smaller. And you could get better compression than either of them if you made CRC32 reversible.

>>56416870
>What is a hash collision?

Do you even know the ultimate compression method that even comes with windows? Just right click on a file and click "create shortcut". The file created is so small it's unbelievable. Be sure to tell all your facebook friends about this awesome life hack.

I had an older co-worker who stated that he was able to reverse an MD5sum, despite clearly not knowing what a hash function way.

Tried to point this out to him but constantly augured that he could.

>>56417809
Was he just reversing the md5 string?

>>56416870
So... CRC32?