Cheat Engine

[oib111]

I was wondering how it's possible that hash's can't be decrypted? It's always something that has eluded me...I don't get why you can't just go backwards through the steps.

[Localhost]

That is because the steps where made for it to be easy to go forward, and almost physically impossible to go backwards. Now, i said almost impossible... Meaning i think it is probable... Just VERY HARD THAT YOU CANT DO IT EVER!

Also... the reason why hashes cannot be reversed or decrypted... Since if they could be decrypted they are no longer considered a hash... Since hashes cannot be decrypted.

So, if you ever decrypt a hash, it is not a hash anymore...

All of this is AFAIK...

[HomerSexual]

dont you need the key they use to encrypt a hash to decrypt it?

[Localhost]

[SXGuy]

sorta right but not really.

if i md5 hashed a password, yes the result is an md5 hash, but i still had to use a password to hash in the first place.

therefore you could in theory reverse a hash if you knew the password, doesnt help to gain the password, but you can reverse it if you knew it.

for example, if you use php and mysql, and you store a password in mysql as md5 hash, you stll gotta input a password for it to hash before saving, then everytime you log in, your same password gets md5 hashed, and then checked against the md5 hash stored in the database.

therefore, it still needs to know the original value, before checking its hashed version.

As far as other hash types go, things like, checking a file size for example, the hash would make exactly to the file size, if you wanted to spoof the hash, then you need to make a file the exact same size as the hash version, you wont be able to do it adding or deleting junk since 1 byte off would mean a completely different hash.

[rapion124]

A hash gets truncated after it goes over the hash length. For example, if I hash 1kb of data and get a 128-bit hash, the data is truncated and lost because 128 bits cannot store 1kb of data.

Meanwhile, encryption preserves the original data. The encrypted data is usually close to the size of the original data. No data is lost, so it can be reversed.

Also, there's no such thing as cracking MD5. You're just hashing every possible combination of data to see if they have the same hash as the hash you have. While this might work, for every 2^LengthOfHash, there is one that works. This means there are an infinite number of possibilities.

[kitterz]

[oib111]

[Localhost]