Example #1
0
// NewBFTCoSiProtocol returns a new bftcosi struct
func NewBFTCoSiProtocol(n *onet.TreeNodeInstance, verify VerificationFunction) (*ProtocolBFTCoSi, error) {
	// initialize the bftcosi node/protocol-instance
	bft := &ProtocolBFTCoSi{
		TreeNodeInstance: n,
		collectStructs: collectStructs{
			prepare: cosi.NewCosi(n.Suite(), n.Private(), n.Roster().Publics()),
			commit:  cosi.NewCosi(n.Suite(), n.Private(), n.Roster().Publics()),
		},
		verifyChan:           make(chan bool),
		VerificationFunction: verify,
		threshold:            (len(n.Tree().List()) + 1) * 2 / 3,
		Msg:                  make([]byte, 0),
		Data:                 make([]byte, 0),
	}

	idx, _ := n.Roster().Search(bft.ServerIdentity().ID)
	bft.index = idx

	// Registering channels.
	err := bft.RegisterChannels(&bft.announceChan,
		&bft.challengePrepareChan, &bft.challengeCommitChan,
		&bft.commitChan, &bft.responseChan)
	if err != nil {
		return nil, err
	}

	n.OnDoneCallback(bft.nodeDone)

	return bft, nil
}
Example #2
0
// NewByzCoinProtocol returns a new byzcoin struct
func NewByzCoinProtocol(n *onet.TreeNodeInstance) (*ByzCoin, error) {
	// create the byzcoin
	bz := new(ByzCoin)
	bz.TreeNodeInstance = n
	bz.suite = n.Suite()
	bz.prepare = cosi.NewCosi(n.Suite(), n.Private())
	bz.commit = cosi.NewCosi(n.Suite(), n.Private())
	bz.verifyBlockChan = make(chan bool)
	bz.doneProcessing = make(chan bool, 2)
	bz.doneSigning = make(chan bool, 1)
	bz.timeoutChan = make(chan uint64, 1)

	//bz.endProto, _ = end.NewEndProtocol(n)
	bz.aggregatedPublic = n.Roster().Aggregate
	bz.threshold = int(math.Ceil(float64(len(bz.Tree().List())) / 3.0))
	bz.viewChangeThreshold = int(math.Ceil(float64(len(bz.Tree().List())) * 2.0 / 3.0))

	// register channels
	if err := n.RegisterChannel(&bz.announceChan); err != nil {
		return bz, err
	}
	if err := n.RegisterChannel(&bz.commitChan); err != nil {
		return bz, err
	}
	if err := n.RegisterChannel(&bz.challengePrepareChan); err != nil {
		return bz, err
	}
	if err := n.RegisterChannel(&bz.challengeCommitChan); err != nil {
		return bz, err
	}
	if err := n.RegisterChannel(&bz.responseChan); err != nil {
		return bz, err
	}
	if err := n.RegisterChannel(&bz.viewchangeChan); err != nil {
		return bz, err
	}

	n.OnDoneCallback(bz.nodeDone)

	go bz.listen()
	return bz, nil
}