* By default, files are hashed through md5 but other methods are available.
*
* Possible values are 'md5', 'md5_outside' and 'random'.
- *
+ *
* With 'md5' option, the whole file is hashed through md5. This is the default.
* With 'md5_outside', hash is computed using:
* - md5 of the first part of the file,