3 ms·

While "This phrase is definitely not in the dictionary" is true, every component is. If this sort of password became popular brute forcing passwords would just

• rudedogg 14y ago
  No, the hash is always the same length, a single character and a 4GB movie will generate a hash of the same length (using the same hash algorithm (md5, sha512, etc). I've casually read about it, I think that is the point of the hash, to take an input of any size or length and represent it as a fixed size. The problem with this is hash collisions, weaknesses found in hash algorithms can make it so attackers could generate files to match another files hash (or password or w/e). I think the idea is that they create a harmful file, then add null characters or w/e so the hash algorithm will generate/assign the two different files the same hash.
• ajanuary 14y ago
  The key idea behind any hashing algorithm is to take inputs of any length and turn them into an output of a fixed length. Different problem domains have different additional requirements: password hashes want to minimise collisions (multiple inputs hashing to the same output), checksums want to make similar inputs produce wildly different outputs, hashtable/dictionary/map key hashes want to create an even distribution of outputs etc. But the thing common to all hashing algorithms is the output is the same size.