Saving bandwidth with Maths

Instead of us sending files through the internet, we should simply send mathematical formulas and the answers. Sure, compression does this, but I’ve come up with a better idea.

  1. MD5Sum the file
  2. SHA2 the file
  3. Send the MD5, SHA2 and the file size to the other computer
  4. Compute the answer

The implementation is left as an exercise for the reader