func (sn *Node) ComputeCombinedMerkleRoot(view, Round int) {
sn.roundLock.RLock()
round := sn.Rounds[Round]
sn.roundLock.RUnlock()
// add hash of whole log to leaves
round.Leaves = append(round.Leaves, round.HashedLog)
// compute MT root based on Log as right child and
// MT of leaves as left child and send it up to parent
sort.Sort(hashid.ByHashId(round.Leaves))
left, proofs := proof.ProofTree(sn.Suite().Hash, round.Leaves)
right := round.HashedLog
moreLeaves := make([]hashid.HashId, 0)
moreLeaves = append(moreLeaves, left, right)
round.MTRoot, _ = proof.ProofTree(sn.Suite().Hash, moreLeaves)
// Hashed Log has to come first in the proof; len(sn.CMTRoots)+1 proofs
round.Proofs = make(map[string]proof.Proof, 0)
children := sn.Children(view)
for name := range children {
round.Proofs[name] = append(round.Proofs[name], right)
}
round.Proofs["local"] = append(round.Proofs["local"], right)
// separate proofs by children (need to send personalized proofs to children)
// also separate local proof (need to send it to timestamp server)
sn.SeparateProofs(proofs, round.Leaves, Round)
}
func (cosi *CosiStruct) ComputeCombinedMerkleRoot() {
// add hash of whole log to leaves
cosi.Leaves = append(cosi.Leaves, cosi.HashedLog)
// compute MT root based on Log as right child and
// MT of leaves as left child and send it up to parent
sort.Sort(hashid.ByHashId(cosi.Leaves))
left, proofs := proof.ProofTree(cosi.Suite.Hash, cosi.Leaves)
right := cosi.HashedLog
moreLeaves := make([]hashid.HashId, 0)
moreLeaves = append(moreLeaves, left, right)
cosi.MTRoot, _ = proof.ProofTree(cosi.Suite.Hash, moreLeaves)
// Hashed Log has to come first in the proof; len(sn.CMTRoots)+1 proofs
cosi.Proofs = make(map[string]proof.Proof, 0)
for name := range cosi.Children {
cosi.Proofs[name] = append(cosi.Proofs[name], right)
}
cosi.Proofs["local"] = append(cosi.Proofs["local"], right)
// separate proofs by children (need to send personalized proofs to children)
// also separate local proof (need to send it to timestamp server)
cosi.SeparateProofs(proofs, cosi.Leaves)
}