Is the 128-bit SSL secure enough to communication between M.O.B and B.O.S?
Under most situations, 128-bit is already more than enough for commercial use. Also, encryption strength doesn’t rely solely on the number of bits used in the encryption. The choice of a random source and random salt are just as important. In addition, the backup data is being encrypted and compressed before sending over from M.O.B to B.O.S, which surely enhances the security.