Common use of Step3 Clause in Contracts

Step3. to h: - A temporary group controller Mtc computes its new share, builds a new bkey tree with all members’ bkeys and broadcasts the tree to the group. Mtc {M1..Mn}U{Mk} For k∈[n,n-q] : - Every sponsor Msi computes keys and bkeys on his path and broadcasts the bkeys. G*= {M1..Mn}-{MLi} {BK*si} Msi sizePkTot

Step3. to h: - A temporary group controller Mtc computes its new share, builds a new bkey tree with all members’ bkeys and broadcasts the tree to the group. Mtc {M1..Mn}U{Mk} For k∈[n,n-qk∈[n+1,n+p] : - Every sponsor Msi computes keys and bkeys on his path and broadcasts a set of all modified bkeys BK* .to the bkeysgroup. SI G*= {M1..Mn}-{MLi} {BK*siBK*si } Msi sizePkTotMsi