AOTP 2.0

This is a new version of AOTP: http://pastebin.com/tsRuVUjY

The Header has changed and looks now like this:

Header Format (the value after the colon indicates the size in bytes):
<File length:8><Name length:4><Name:<Name length>><0:4><Header length:4>

File length: Length of the file in bytes without padding; 64 bit integer
Name length: File Name length in bytes (not chars, as an UTF-8 char can span up to 4 bytes); 32 bit integer
Name: File name itself (without path) as UTF-8 string
0: Number 0 ar 4 bytes {0,0,0,0} to indicate no more headers following. Later more headers are possible.
Header length: length of header in bytes, including this number itself; 32 bit integer

header length includes itself, currently it is always: Name length + 20

File Format:
<Encrypted content>[padding]<Header>

Encrypted content: This is the AOTP encrypted content of the file
Padding: optional randomly chosen chars. It is only present, if the file + header is smaller than the biggest file + header in the set.
Header: See above

Together with <File length> and <Header length> the padding can
be cut out of the stream and does not needs to be decrypted at all, greatly speeding up the process for small files