Is it possible to predict a hash key based on half key? Let's have some example:
I have 100000000 hash results, and they are generated by either
sha256( "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" . md5(random()) );
sha256( "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" . md5(random()) );
So, when someone generates a new hash (based on method "aa" ou method "bb"), is there any way that I can predict if hash is more a "aa" generated type or more a "bb" one?
I have already tried some type of Bayes classification, because I know that can only be there 2 types of results. But for each result I cannot classify hashes so that I have a good Bayes training.
Is this theoretically possible?