Hash comparision

Using hash comparision to check if two files are the same

Hash value is a digital signature for each file. By comparing this signatures Air Cluster can know if the files are the same so Air Cluster in that case does not updated this file while synchronizes.

There are different hash functions and each cloud uses one of them. The hash comparison only can do with clouds that use the same hash.

Hash comparison:
  -md5: local, 4shared, Google Drive, Baidu, pCloud.
  -sha1: local, Box.com, OneDrive, pCloud.
  -sha2: Dropbox.
  -sha256: local, Mediafire.
  -No hash: Hidrive, FTP, WebDAV.