How To Convert Crypt To Md5?

How can one convert these 5 lines of Python code in Java?

• def get_hash(name): readsize = 64 * 1024 with open(name, 'rb') as f: data = f.read(readsize) f.seek(-readsize, os.SEEK_END) data += f.read(readsize) return hashlib.md5(data).hexdigest() This API from http://thesubdb.com/api/ Could anybody please help me convert this into Java? I'm a beginner :'(

• Answer:

  You'll need to look at multiply things. First, read about Input Streams in Java : http://docs.oracle.com/javase/7/docs/api/java/io/InputStream.html The easiest thing to do is wrap BufferedReader around http://docs.oracle.com/javase/7/docs/api/java/nio/file/Files.html that is: InputStream is = new BufferedInputStream(Files.newInputStream(Paths.get(name)) http://docs.oracle.com/javase/7/docs/api/java/nio/file/Files.html#newInputStream%28java.nio.file.Path,%20java.nio.file.OpenOption...%29 Of course wrap it in try-with-resource block: http://docs.oracle.com/javase/tutorial/essential/exceptions/tryResourceClose.html Getting firsts 64k is easy, just be careful to remember stream shall read at least one byte, but not necesarily all of the buffer you supply. For last 64k just calculate starting position and skip to it. Files.size(Paths.get(name)) for size of the file and is.skip(n) for skipping n bytes. Read the documentation. Lastly there is a matter of calculating md5 hash. For that simple google search should yield enough answers. You'll generate a message digest, than go with update\update...\doFinal and after all is done converting to hex string is trivial.