title: recover password from an AES-256 Deflate encrypted Zip Archive through unencrypted files?
body: <p>The important thing is, I don't need all the data istelf to be decrypted (save for one file)!</p>
  
  <p>My Problem: I have an AES-256 encrypted zip archive and I additionally have all the files that are in that archive in their unencrypted form, except for one that I need to recover. Is there a way to somehow recover that password by comparing the encrypted and unencrypted versions of the remaining files? Or any other way to recover that one last file? The password was randomly generated with more than 16 characters (and lost to time, eventually), so simple brute force isn't an option for me.</p>