Golang account.SignBytes函數代碼示例

func (cs *ConsensusState) SetProposal(proposal *types.Proposal) error {
	cs.mtx.Lock()
	defer cs.mtx.Unlock()

	// Already have one
	if cs.Proposal != nil {
		return nil
	}

	// Does not apply
	if proposal.Height != cs.Height || proposal.Round != cs.Round {
		return nil
	}

	// We don't care about the proposal if we're already in RoundStepCommit.
	if RoundStepCommit <= cs.Step {
		return nil
	}

	// Verify POLRound, which must be -1 or between 0 and proposal.Round exclusive.
	if proposal.POLRound != -1 &&
		(proposal.POLRound < 0 || proposal.Round <= proposal.POLRound) {
		return ErrInvalidProposalPOLRound
	}

	// Verify signature
	if !cs.Validators.Proposer().PubKey.VerifyBytes(acm.SignBytes(cs.state.ChainID, proposal), proposal.Signature) {
		return ErrInvalidProposalSignature
	}

	cs.Proposal = proposal
	cs.ProposalBlockParts = types.NewPartSetFromHeader(proposal.BlockPartsHeader)
	return nil
}

func (privVal *PrivValidator) SignVote(chainID string, vote *Vote) error {
	privVal.mtx.Lock()
	defer privVal.mtx.Unlock()

	// If height regression, panic
	if privVal.LastHeight > vote.Height {
		return errors.New("Height regression in SignVote")
	}
	// More cases for when the height matches
	if privVal.LastHeight == vote.Height {
		// If round regression, panic
		if privVal.LastRound > vote.Round {
			return errors.New("Round regression in SignVote")
		}
		// If step regression, panic
		if privVal.LastRound == vote.Round && privVal.LastStep > voteToStep(vote) {
			return errors.New("Step regression in SignVote")
		}
	}

	// Persist height/round/step
	privVal.LastHeight = vote.Height
	privVal.LastRound = vote.Round
	privVal.LastStep = voteToStep(vote)
	privVal.save()

	// Sign
	vote.Signature = privVal.signer.Sign(acm.SignBytes(chainID, vote))
	return nil
}

func TestSendTxSignable(t *testing.T) {
	sendTx := &SendTx{
		Inputs: []*TxInput{
			&TxInput{
				Address:  []byte("input1"),
				Amount:   12345,
				Sequence: 67890,
			},
			&TxInput{
				Address:  []byte("input2"),
				Amount:   111,
				Sequence: 222,
			},
		},
		Outputs: []*TxOutput{
			&TxOutput{
				Address: []byte("output1"),
				Amount:  333,
			},
			&TxOutput{
				Address: []byte("output2"),
				Amount:  444,
			},
		},
	}
	signBytes := acm.SignBytes(chainID, sendTx)
	signStr := string(signBytes)
	expected := Fmt(`{"chain_id":"%s","tx":[1,{"inputs":[{"address":"696E70757431","amount":12345,"sequence":67890},{"address":"696E70757432","amount":111,"sequence":222}],"outputs":[{"address":"6F757470757431","amount":333},{"address":"6F757470757432","amount":444}]}]}`,
		config.GetString("chain_id"))
	if signStr != expected {
		t.Errorf("Got unexpected sign string for SendTx. Expected:\n%v\nGot:\n%v", expected, signStr)
	}
}

func TestDupeoutTxSignable(t *testing.T) {
	privAcc := acm.GenPrivAccount()
	partSetHeader := PartSetHeader{Total: 10, Hash: []byte("partsethash")}
	voteA := &Vote{
		Height:           10,
		Round:            2,
		Type:             VoteTypePrevote,
		BlockHash:        []byte("myblockhash"),
		BlockPartsHeader: partSetHeader,
	}
	sig := privAcc.Sign(chainID, voteA)
	voteA.Signature = sig.(acm.SignatureEd25519)
	voteB := voteA.Copy()
	voteB.BlockHash = []byte("myotherblockhash")
	sig = privAcc.Sign(chainID, voteB)
	voteB.Signature = sig.(acm.SignatureEd25519)

	dupeoutTx := &DupeoutTx{
		Address: []byte("address1"),
		VoteA:   *voteA,
		VoteB:   *voteB,
	}
	signBytes := acm.SignBytes(chainID, dupeoutTx)
	signStr := string(signBytes)
	expected := Fmt(`{"chain_id":"%s","tx":[20,{"address":"6164647265737331","vote_a":%v,"vote_b":%v}]}`,
		config.GetString("chain_id"), *voteA, *voteB)
	if signStr != expected {
		t.Errorf("Got unexpected sign string for DupeoutTx")
	}
}

func (data *Data) Hash() []byte {
	if data.hash == nil {
		bs := make([]interface{}, len(data.Txs))
		for i, tx := range data.Txs {
			bs[i] = acm.SignBytes(config.GetString("chain_id"), tx)
		}
		data.hash = merkle.SimpleHashFromBinaries(bs) // NOTE: leaves are TxIDs.
	}
	return data.hash
}

func TestRebondTxSignable(t *testing.T) {
	rebondTx := &RebondTx{
		Address: []byte("address1"),
		Height:  111,
	}
	signBytes := acm.SignBytes(chainID, rebondTx)
	signStr := string(signBytes)
	expected := Fmt(`{"chain_id":"%s","tx":[19,{"address":"6164647265737331","height":111}]}`,
		config.GetString("chain_id"))
	if signStr != expected {
		t.Errorf("Got unexpected sign string for RebondTx")
	}
}

// Verify that +2/3 of the set had signed the given signBytes
func (valSet *ValidatorSet) VerifyValidation(chainID string,
	hash []byte, parts types.PartSetHeader, height int, v *types.Validation) error {
	if valSet.Size() != len(v.Precommits) {
		return fmt.Errorf("Invalid validation -- wrong set size: %v vs %v", valSet.Size(), len(v.Precommits))
	}
	if height != v.Height() {
		return fmt.Errorf("Invalid validation -- wrong height: %v vs %v", height, v.Height())
	}

	talliedVotingPower := int64(0)
	round := v.Round()

	for idx, precommit := range v.Precommits {
		// may be nil if validator skipped.
		if precommit == nil {
			continue
		}
		if precommit.Height != height {
			return fmt.Errorf("Invalid validation -- wrong height: %v vs %v", height, precommit.Height)
		}
		if precommit.Round != round {
			return fmt.Errorf("Invalid validation -- wrong round: %v vs %v", round, precommit.Round)
		}
		if precommit.Type != types.VoteTypePrecommit {
			return fmt.Errorf("Invalid validation -- not precommit @ index %v", idx)
		}
		_, val := valSet.GetByIndex(idx)
		// Validate signature
		precommitSignBytes := account.SignBytes(chainID, precommit)
		if !val.PubKey.VerifyBytes(precommitSignBytes, precommit.Signature) {
			return fmt.Errorf("Invalid validation -- invalid signature: %v", precommit)
		}
		if !bytes.Equal(precommit.BlockHash, hash) {
			continue // Not an error, but doesn't count
		}
		if !parts.Equals(precommit.BlockParts) {
			continue // Not an error, but doesn't count
		}
		// Good precommit!
		talliedVotingPower += val.VotingPower
	}

	if talliedVotingPower > valSet.TotalVotingPower()*2/3 {
		return nil
	} else {
		return fmt.Errorf("Invalid validation -- insufficient voting power: got %v, needed %v",
			talliedVotingPower, (valSet.TotalVotingPower()*2/3 + 1))
	}
}

func TestProposalSignable(t *testing.T) {
	proposal := &Proposal{
		Height:           12345,
		Round:            23456,
		BlockPartsHeader: PartSetHeader{111, []byte("blockparts")},
		POLRound:         -1,
	}
	signBytes := acm.SignBytes(config.GetString("chain_id"), proposal)
	signStr := string(signBytes)

	expected := Fmt(`{"chain_id":"%s","proposal":{"block_parts_header":{"hash":"626C6F636B7061727473","total":111},"height":12345,"pol_round":-1,"round":23456}}`,
		config.GetString("chain_id"))
	if signStr != expected {
		t.Errorf("Got unexpected sign string for SendTx. Expected:\n%v\nGot:\n%v", expected, signStr)
	}
}

func (voteSet *VoteSet) addVote(val *sm.Validator, valIndex int, vote *types.Vote) (bool, int, error) {

	// Make sure the step matches. (or that vote is commit && round < voteSet.round)
	if (vote.Height != voteSet.height) ||
		(vote.Round != voteSet.round) ||
		(vote.Type != voteSet.type_) {
		return false, 0, types.ErrVoteUnexpectedStep
	}

	// Check signature.
	if !val.PubKey.VerifyBytes(acm.SignBytes(config.GetString("chain_id"), vote), vote.Signature) {
		// Bad signature.
		return false, 0, types.ErrVoteInvalidSignature
	}

	// If vote already exists, return false.
	if existingVote := voteSet.votes[valIndex]; existingVote != nil {
		if bytes.Equal(existingVote.BlockHash, vote.BlockHash) {
			return false, valIndex, nil
		} else {
			return false, valIndex, &types.ErrVoteConflictingSignature{
				VoteA: existingVote,
				VoteB: vote,
			}
		}
	}

	// Add vote.
	voteSet.votes[valIndex] = vote
	voteSet.votesBitArray.SetIndex(valIndex, true)
	blockKey := string(vote.BlockHash) + string(wire.BinaryBytes(vote.BlockParts))
	totalBlockHashVotes := voteSet.votesByBlock[blockKey] + val.VotingPower
	voteSet.votesByBlock[blockKey] = totalBlockHashVotes
	voteSet.totalVotes += val.VotingPower

	// If we just nudged it up to two thirds majority, add it.
	if totalBlockHashVotes > voteSet.valSet.TotalVotingPower()*2/3 &&
		(totalBlockHashVotes-val.VotingPower) <= voteSet.valSet.TotalVotingPower()*2/3 {
		voteSet.maj23Hash = vote.BlockHash
		voteSet.maj23Parts = vote.BlockParts
		voteSet.maj23Exists = true
	}

	return true, valIndex, nil
}

func checkTx(t *testing.T, fromAddr []byte, priv *acm.PrivAccount, tx *types.SendTx) {
	if bytes.Compare(tx.Inputs[0].Address, fromAddr) != 0 {
		t.Fatal("Tx input addresses don't match!")
	}

	signBytes := acm.SignBytes(chainID, tx)
	in := tx.Inputs[0] //(*types.SendTx).Inputs[0]

	if err := in.ValidateBasic(); err != nil {
		t.Fatal(err)
	}
	// Check signatures
	// acc := getAccount(t, byteAddr)
	// NOTE: using the acc here instead of the in fails; it is nil.
	if !in.PubKey.VerifyBytes(signBytes, in.Signature) {
		t.Fatal(types.ErrTxInvalidSignature)
	}
}

func TestNameTxSignable(t *testing.T) {
	nameTx := &NameTx{
		Input: &TxInput{
			Address:  []byte("input1"),
			Amount:   12345,
			Sequence: 250,
		},
		Name: "google.com",
		Data: "secretly.not.google.com",
		Fee:  1000,
	}
	signBytes := acm.SignBytes(chainID, nameTx)
	signStr := string(signBytes)
	expected := Fmt(`{"chain_id":"%s","tx":[3,{"data":"secretly.not.google.com","fee":1000,"input":{"address":"696E70757431","amount":12345,"sequence":250},"name":"google.com"}]}`,
		config.GetString("chain_id"))
	if signStr != expected {
		t.Errorf("Got unexpected sign string for CallTx. Expected:\n%v\nGot:\n%v", expected, signStr)
	}
}

func (privVal *PrivValidator) SignRebondTx(chainID string, rebondTx *types.RebondTx) error {
	privVal.mtx.Lock()
	defer privVal.mtx.Unlock()
	if privVal.LastHeight < rebondTx.Height {

		// Persist height/round/step
		// Prevent doing anything else for this rebondTx.Height.
		privVal.LastHeight = rebondTx.Height
		privVal.LastRound = math.MaxInt32 // MaxInt64 overflows on 32bit architectures.
		privVal.LastStep = math.MaxInt8
		privVal.save()

		// Sign
		rebondTx.Signature = privVal.PrivKey.Sign(account.SignBytes(chainID, rebondTx)).(account.SignatureEd25519)
		return nil
	} else {
		return errors.New(fmt.Sprintf("Attempt of duplicate signing of rebondTx: Height %v", rebondTx.Height))
	}
}

func TestCallTxSignable(t *testing.T) {
	callTx := &CallTx{
		Input: &TxInput{
			Address:  []byte("input1"),
			Amount:   12345,
			Sequence: 67890,
		},
		Address:  []byte("contract1"),
		GasLimit: 111,
		Fee:      222,
		Data:     []byte("data1"),
	}
	signBytes := acm.SignBytes(chainID, callTx)
	signStr := string(signBytes)
	expected := Fmt(`{"chain_id":"%s","tx":[2,{"address":"636F6E747261637431","data":"6461746131","fee":222,"gas_limit":111,"input":{"address":"696E70757431","amount":12345,"sequence":67890}}]}`,
		config.GetString("chain_id"))
	if signStr != expected {
		t.Errorf("Got unexpected sign string for CallTx. Expected:\n%v\nGot:\n%v", expected, signStr)
	}
}

func (privVal *PrivValidator) SignProposal(chainID string, proposal *Proposal) error {
	privVal.mtx.Lock()
	defer privVal.mtx.Unlock()
	if privVal.LastHeight < proposal.Height ||
		privVal.LastHeight == proposal.Height && privVal.LastRound < proposal.Round ||
		privVal.LastHeight == 0 && privVal.LastRound == 0 && privVal.LastStep == stepNone {

		// Persist height/round/step
		privVal.LastHeight = proposal.Height
		privVal.LastRound = proposal.Round
		privVal.LastStep = stepPropose
		privVal.save()

		// Sign
		proposal.Signature = privVal.PrivKey.Sign(account.SignBytes(chainID, proposal)).(account.SignatureEd25519)
		return nil
	} else {
		return errors.New(fmt.Sprintf("Attempt of duplicate signing of proposal: Height %v, Round %v", proposal.Height, proposal.Round))
	}
}

func TestPermissionsTxSignable(t *testing.T) {
	permsTx := &PermissionsTx{
		Input: &TxInput{
			Address:  []byte("input1"),
			Amount:   12345,
			Sequence: 250,
		},
		PermArgs: &ptypes.SetBaseArgs{
			Address:    []byte("address1"),
			Permission: 1,
			Value:      true,
		},
	}
	signBytes := acm.SignBytes(chainID, permsTx)
	signStr := string(signBytes)
	expected := Fmt(`{"chain_id":"%s","tx":[32,{"args":"[2,{"address":"6164647265737331","permission":1,"value":true}]","input":{"address":"696E70757431","amount":12345,"sequence":250}}]}`,
		config.GetString("chain_id"))
	if signStr != expected {
		t.Errorf("Got unexpected sign string for CallTx. Expected:\n%v\nGot:\n%v", expected, signStr)
	}
}