Data Broadcasting

Initial State :
Client A have data.1 and data.2
Client B have data.1 and data.3 and data.4
Client C have data.5 and data.7
Client D have data.6

if complete data = data.1 ~ data.7
it looks like peers exclude peers and complete data

if complete data = data.1 ~ data.4
data.5 ~ data.7 is one of the key group
it looks like peers in network with multiple key for decryption

if complete data = unknown
data.1 ~ data.7 are keys for random decryption
and the order of the keys produce different result
it looks like disordered distributed decryption network