Golang crypto.GenerateTwofishKey函數代碼示例

// createServerTester creates a server tester object that is ready for testing,
// including money in the wallet and all modules initialized.
func createServerTester(name string) (*serverTester, error) {
	// createServerTester is expensive, and therefore should not be called
	// during short tests.
	if testing.Short() {
		panic("createServerTester called during short tests")
	}

	// Create the testing directory.
	testdir := build.TempDir("api", name)

	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	st, err := assembleServerTester(key, testdir)
	if err != nil {
		return nil, err
	}

	// Mine blocks until the wallet has confirmed money.
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		_, err := st.miner.AddBlock()
		if err != nil {
			return nil, err
		}
	}

	return st, nil
}

// createAuthenticatedServerTester creates an authenticated server tester
// object that is ready for testing, including money in the wallet and all
// modules initalized.
func createAuthenticatedServerTester(name string, password string) (*serverTester, error) {
	// createAuthenticatedServerTester should not get called during short
	// tests, as it takes a long time to run.
	if testing.Short() {
		panic("assembleServerTester called during short tests")
	}

	// Create the testing directory.
	testdir := build.TempDir("authenticated-api", name)

	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	st, err := assembleAuthenticatedServerTester(password, key, testdir)
	if err != nil {
		return nil, err
	}

	// Mine blocks until the wallet has confirmed money.
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		_, err := st.miner.AddBlock()
		if err != nil {
			return nil, err
		}
	}

	return st, nil
}

// newRenterTester creates a ready-to-use renter tester with money in the
// wallet.
func newRenterTester(name string) (*renterTester, error) {
	// Create the modules.
	testdir := build.TempDir("renter", name)
	g, err := gateway.New("localhost:0", false, filepath.Join(testdir, modules.GatewayDir))
	if err != nil {
		return nil, err
	}
	cs, err := consensus.New(g, false, filepath.Join(testdir, modules.ConsensusDir))
	if err != nil {
		return nil, err
	}
	tp, err := transactionpool.New(cs, g, filepath.Join(testdir, modules.TransactionPoolDir))
	if err != nil {
		return nil, err
	}
	w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
	if err != nil {
		return nil, err
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	_, err = w.Encrypt(key)
	if err != nil {
		return nil, err
	}
	err = w.Unlock(key)
	if err != nil {
		return nil, err
	}
	r, err := New(cs, w, tp, filepath.Join(testdir, modules.RenterDir))
	if err != nil {
		return nil, err
	}
	m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
	if err != nil {
		return nil, err
	}

	// Assemble all pieces into a renter tester.
	rt := &renterTester{
		cs:      cs,
		gateway: g,
		miner:   m,
		tpool:   tp,
		wallet:  w,

		renter: r,
	}

	// Mine blocks until there is money in the wallet.
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		_, err := rt.miner.AddBlock()
		if err != nil {
			return nil, err
		}
	}
	return rt, nil
}

// createExplorerTester creates a tester object for the explorer module.
func createExplorerTester(name string) (*explorerTester, error) {
	// Create and assemble the dependencies.
	testdir := build.TempDir(modules.HostDir, name)
	g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
	if err != nil {
		return nil, err
	}
	cs, err := consensus.New(g, filepath.Join(testdir, modules.ConsensusDir))
	if err != nil {
		return nil, err
	}
	tp, err := transactionpool.New(cs, g)
	if err != nil {
		return nil, err
	}
	w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
	if err != nil {
		return nil, err
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	_, err = w.Encrypt(key)
	if err != nil {
		return nil, err
	}
	err = w.Unlock(key)
	if err != nil {
		return nil, err
	}
	m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.RenterDir))
	if err != nil {
		return nil, err
	}
	e, err := New(cs, filepath.Join(testdir, modules.ExplorerDir))
	if err != nil {
		return nil, err
	}
	et := &explorerTester{
		cs:        cs,
		gateway:   g,
		miner:     m,
		tpool:     tp,
		wallet:    w,
		walletKey: key,

		explorer: e,
	}

	// Mine until the wallet has money.
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		b, _ := et.miner.FindBlock()
		err = et.cs.AcceptBlock(b)
		if err != nil {
			return nil, err
		}
	}
	return et, nil
}

// createConsensusSetTester creates a consensusSetTester that's ready for use.
func createConsensusSetTester(name string) (*consensusSetTester, error) {
	testdir := build.TempDir(modules.ConsensusDir, name)

	// Create modules.
	g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
	if err != nil {
		return nil, err
	}
	cs, err := New(g, filepath.Join(testdir, modules.ConsensusDir))
	if err != nil {
		return nil, err
	}
	tp, err := transactionpool.New(cs, g)
	if err != nil {
		return nil, err
	}
	w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
	if err != nil {
		return nil, err
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	_, err = w.Encrypt(key)
	if err != nil {
		return nil, err
	}
	err = w.Unlock(key)
	if err != nil {
		return nil, err
	}
	m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
	if err != nil {
		return nil, err
	}

	// Assemble all objects into a consensusSetTester.
	cst := &consensusSetTester{
		gateway:   g,
		miner:     m,
		tpool:     tp,
		wallet:    w,
		walletKey: key,

		cs: cs,

		persistDir: testdir,
	}

	// Mine until the wallet has money.
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		b, _ := cst.miner.FindBlock()
		err = cst.cs.AcceptBlock(b)
		if err != nil {
			return nil, err
		}
	}
	return cst, nil
}

// newHostDBTester creates a ready-to-use hostdb tester with money in the
// wallet.
func newHostDBTester(name string) (*hostdbTester, error) {
	// Create the modules.
	testdir := build.TempDir("hostdb", name)
	g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
	if err != nil {
		return nil, err
	}
	cs, err := consensus.New(g, filepath.Join(testdir, modules.ConsensusDir))
	if err != nil {
		return nil, err
	}
	tp, err := transactionpool.New(cs, g)
	if err != nil {
		return nil, err
	}
	w, err := modWallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
	if err != nil {
		return nil, err
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	_, err = w.Encrypt(key)
	if err != nil {
		return nil, err
	}
	err = w.Unlock(key)
	if err != nil {
		return nil, err
	}
	hdb, err := New(cs, w, tp, filepath.Join(testdir, modules.RenterDir))
	if err != nil {
		return nil, err
	}
	m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
	if err != nil {
		return nil, err
	}

	// Assemble all pieces into a hostdb tester.
	ht := &hostdbTester{
		cs:      cs,
		gateway: g,
		miner:   m,
		tpool:   tp,
		wallet:  w,

		hostdb: hdb,
	}

	// Mine blocks until there is money in the wallet.
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		_, err := ht.miner.AddBlock()
		if err != nil {
			return nil, err
		}
	}
	return ht, nil
}

// newTestingWallet is a helper function that creates a ready-to-use wallet
// and mines some coins into it.
func newTestingWallet(testdir string, cs modules.ConsensusSet, tp modules.TransactionPool) (modules.Wallet, error) {
	w, err := modWallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
	if err != nil {
		return nil, err
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	if !w.Encrypted() {
		_, err = w.Encrypt(key)
		if err != nil {
			return nil, err
		}
	}
	err = w.Unlock(key)
	if err != nil {
		return nil, err
	}
	// give it some money
	m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
	if err != nil {
		return nil, err
	}
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		_, err := m.AddBlock()
		if err != nil {
			return nil, err
		}
	}
	return w, nil
}

// newFile creates a new file object.
func newFile(name string, code modules.ErasureCoder, pieceSize, fileSize uint64) *file {
	key, _ := crypto.GenerateTwofishKey()
	return &file{
		name:        name,
		size:        fileSize,
		contracts:   make(map[modules.NetAddress]fileContract),
		masterKey:   key,
		erasureCode: code,
		pieceSize:   pieceSize,
	}
}

// createConsensusSetTester creates a consensusSetTester that's ready for use.
func createConsensusSetTester(name string) (*consensusSetTester, error) {
	testdir := build.TempDir(modules.ConsensusDir, name)

	// Create modules.
	g, err := gateway.New(":0", filepath.Join(testdir, modules.GatewayDir))
	if err != nil {
		return nil, err
	}
	cs, err := New(g, filepath.Join(testdir, modules.ConsensusDir))
	if err != nil {
		return nil, err
	}
	tp, err := transactionpool.New(cs, g)
	if err != nil {
		return nil, err
	}
	w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
	if err != nil {
		return nil, err
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	_, err = w.Encrypt(key)
	if err != nil {
		return nil, err
	}
	err = w.Unlock(key)
	if err != nil {
		return nil, err
	}
	m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
	if err != nil {
		return nil, err
	}

	// Assemble all objects into a consensusSetTester.
	cst := &consensusSetTester{
		gateway:   g,
		miner:     m,
		tpool:     tp,
		wallet:    w,
		walletKey: key,

		cs: cs,

		persistDir: testdir,
	}
	cst.addSiafunds()
	cst.mineSiacoins()

	return cst, nil
}

// reorgToBlank creates a bunch of empty blocks on top of the genesis block
// that reorgs the explorer to a state of all blank blocks.
func (et *explorerTester) reorgToBlank() error {
	// Get a unique directory name to house the persistence of the miner
	// dependencies.
	dir := et.testdir + " - " + persist.RandomSuffix()

	// Create a miner and all dependencies to create an alternate chain.
	g, err := gateway.New("localhost:0", false, filepath.Join(dir, modules.GatewayDir))
	if err != nil {
		return err
	}
	cs, err := consensus.New(g, false, filepath.Join(dir, modules.ConsensusDir))
	if err != nil {
		return err
	}
	tp, err := transactionpool.New(cs, g, filepath.Join(dir, modules.TransactionPoolDir))
	if err != nil {
		return err
	}
	w, err := wallet.New(cs, tp, filepath.Join(dir, modules.WalletDir))
	if err != nil {
		return err
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return err
	}
	_, err = w.Encrypt(key)
	if err != nil {
		return err
	}
	err = w.Unlock(key)
	if err != nil {
		return err
	}
	m, err := miner.New(cs, tp, w, filepath.Join(dir, modules.RenterDir))
	if err != nil {
		return err
	}

	// Mine blocks until the height is higher than the existing consensus,
	// submitting each block to the explorerTester.
	currentHeight := cs.Height()
	for i := types.BlockHeight(0); i <= currentHeight+1; i++ {
		block, err := m.AddBlock()
		if err != nil {
			return err
		}
		et.cs.AcceptBlock(block) // error is not checked, will not always be nil
	}
	return nil
}

// newTestingFile initializes a file object with random parameters.
func newTestingFile() *file {
	key, _ := crypto.GenerateTwofishKey()
	data, _ := crypto.RandBytes(8)
	nData, _ := crypto.RandIntn(10)
	nParity, _ := crypto.RandIntn(10)
	rsc, _ := NewRSCode(nData+1, nParity+1)

	return &file{
		name:        "testfile-" + strconv.Itoa(int(data[0])),
		size:        encoding.DecUint64(data[1:5]),
		masterKey:   key,
		erasureCode: rsc,
		pieceSize:   encoding.DecUint64(data[6:8]),
	}
}

// initWallet creates a wallet key, initializes the host wallet, unlocks it,
// and then stores the key in the host tester.
func (ht *hostTester) initWallet() error {
	// Create the keys for the wallet and unlock it.
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return err
	}
	ht.walletKey = key
	_, err = ht.wallet.Encrypt(key)
	if err != nil {
		return err
	}
	err = ht.wallet.Unlock(key)
	if err != nil {
		return err
	}
	return nil
}

// blankServerTester creates a server tester object that is ready for testing,
// without any money in the wallet.
func blankServerTester(name string) (*serverTester, error) {
	// createServerTester is expensive, and therefore should not be called
	// during short tests.
	if testing.Short() {
		panic("blankServerTester called during short tests")
	}

	// Create the server tester with key.
	testdir := build.TempDir("api", name)
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	st, err := assembleServerTester(key, testdir)
	if err != nil {
		return nil, err
	}
	return st, nil
}

// createServerTester creates a server tester object that is ready for testing,
// including money in the wallet and all modules initalized.
func createServerTester(name string) (*serverTester, error) {
	// Create the testing directory.
	testdir := build.TempDir("api", name)

	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		return nil, err
	}
	st, err := assembleServerTester(key, testdir)
	if err != nil {
		return nil, err
	}

	// Mine blocks until the wallet has confirmed money.
	for i := types.BlockHeight(0); i <= types.MaturityDelay; i++ {
		_, err := st.miner.AddBlock()
		if err != nil {
			return nil, err
		}
	}

	return st, nil
}

// TestIntegrationMinimumValidChildTimestamp probes the
// MinimumValidChildTimestamp method of the consensus type.
func TestIntegrationMinimumValidChildTimestamp(t *testing.T) {
	if testing.Short() {
		t.SkipNow()
	}
	t.Parallel()

	// Create a custom consensus set to control the blocks.
	testdir := build.TempDir(modules.ConsensusDir, "TestIntegrationMinimumValidChildTimestamp")
	g, err := gateway.New("localhost:0", false, filepath.Join(testdir, modules.GatewayDir))
	if err != nil {
		t.Fatal(err)
	}
	cs, err := New(g, false, filepath.Join(testdir, modules.ConsensusDir))
	if err != nil {
		t.Fatal(err)
	}
	tp, err := transactionpool.New(cs, g, filepath.Join(testdir, modules.TransactionPoolDir))
	if err != nil {
		t.Fatal(err)
	}
	w, err := wallet.New(cs, tp, filepath.Join(testdir, modules.WalletDir))
	if err != nil {
		t.Fatal(err)
	}
	key, err := crypto.GenerateTwofishKey()
	if err != nil {
		t.Fatal(err)
	}
	_, err = w.Encrypt(key)
	if err != nil {
		t.Fatal(err)
	}
	err = w.Unlock(key)
	if err != nil {
		t.Fatal(err)
	}
	m, err := miner.New(cs, tp, w, filepath.Join(testdir, modules.MinerDir))
	if err != nil {
		t.Fatal(err)
	}
	defer g.Close()

	// The earliest child timestamp of the genesis block should be the
	// timestamp of the genesis block.
	genesisTime := cs.blockRoot.Block.Timestamp
	earliest, ok := cs.MinimumValidChildTimestamp(cs.blockRoot.Block.ID())
	if !ok || genesisTime != earliest {
		t.Error("genesis block earliest timestamp producing unexpected results")
	}

	timestampOffsets := []types.Timestamp{1, 3, 2, 5, 4, 6, 7, 8, 9, 10}
	blockIDs := []types.BlockID{cs.blockRoot.Block.ID()}
	for _, offset := range timestampOffsets {
		bfw, target, err := m.BlockForWork()
		if err != nil {
			t.Fatal(err)
		}
		bfw.Timestamp = genesisTime + offset
		solvedBlock, _ := m.SolveBlock(bfw, target)
		err = cs.AcceptBlock(solvedBlock)
		if err != nil {
			t.Fatal(err)
		}
		blockIDs = append(blockIDs, solvedBlock.ID())
	}

	// Median should be genesisTime for 6th block.
	earliest, ok = cs.MinimumValidChildTimestamp(blockIDs[5])
	if !ok || earliest != genesisTime {
		t.Error("incorrect child timestamp")
	}
	// Median should be genesisTime+1 for 7th block.
	earliest, ok = cs.MinimumValidChildTimestamp(blockIDs[6])
	if !ok || earliest != genesisTime+1 {
		t.Error("incorrect child timestamp")
	}
	// Median should be genesisTime + 5 for pb11.
	earliest, ok = cs.MinimumValidChildTimestamp(blockIDs[10])
	if !ok || earliest != genesisTime+5 {
		t.Error("incorrect child timestamp")
	}
}