github.com/neatlab/neatio@v1.7.3-0.20220425043230-d903e92fcc75/network/p2p/rlpx_test.go (about)

     1  package p2p
     2  
     3  import (
     4  	"bytes"
     5  	"crypto/rand"
     6  	"errors"
     7  	"fmt"
     8  	"io"
     9  	"io/ioutil"
    10  	"net"
    11  	"reflect"
    12  	"strings"
    13  	"sync"
    14  	"testing"
    15  	"time"
    16  
    17  	"github.com/davecgh/go-spew/spew"
    18  	"github.com/neatlab/neatio/network/p2p/discover"
    19  	"github.com/neatlab/neatio/utilities/crypto"
    20  	"github.com/neatlab/neatio/utilities/crypto/ecies"
    21  	"github.com/neatlab/neatio/utilities/crypto/sha3"
    22  	"github.com/neatlab/neatio/utilities/rlp"
    23  )
    24  
    25  func TestSharedSecret(t *testing.T) {
    26  	prv0, _ := crypto.GenerateKey()
    27  	pub0 := &prv0.PublicKey
    28  	prv1, _ := crypto.GenerateKey()
    29  	pub1 := &prv1.PublicKey
    30  
    31  	ss0, err := ecies.ImportECDSA(prv0).GenerateShared(ecies.ImportECDSAPublic(pub1), sskLen, sskLen)
    32  	if err != nil {
    33  		return
    34  	}
    35  	ss1, err := ecies.ImportECDSA(prv1).GenerateShared(ecies.ImportECDSAPublic(pub0), sskLen, sskLen)
    36  	if err != nil {
    37  		return
    38  	}
    39  	t.Logf("Secret:\n%v %x\n%v %x", len(ss0), ss0, len(ss0), ss1)
    40  	if !bytes.Equal(ss0, ss1) {
    41  		t.Errorf("dont match :(")
    42  	}
    43  }
    44  
    45  func TestEncHandshake(t *testing.T) {
    46  	for i := 0; i < 10; i++ {
    47  		start := time.Now()
    48  		if err := testEncHandshake(nil); err != nil {
    49  			t.Fatalf("i=%d %v", i, err)
    50  		}
    51  		t.Logf("(without token) %d %v\n", i+1, time.Since(start))
    52  	}
    53  	for i := 0; i < 10; i++ {
    54  		tok := make([]byte, shaLen)
    55  		rand.Reader.Read(tok)
    56  		start := time.Now()
    57  		if err := testEncHandshake(tok); err != nil {
    58  			t.Fatalf("i=%d %v", i, err)
    59  		}
    60  		t.Logf("(with token) %d %v\n", i+1, time.Since(start))
    61  	}
    62  }
    63  
    64  func testEncHandshake(token []byte) error {
    65  	type result struct {
    66  		side string
    67  		id   discover.NodeID
    68  		err  error
    69  	}
    70  	var (
    71  		prv0, _  = crypto.GenerateKey()
    72  		prv1, _  = crypto.GenerateKey()
    73  		fd0, fd1 = net.Pipe()
    74  		c0, c1   = newRLPX(fd0).(*rlpx), newRLPX(fd1).(*rlpx)
    75  		output   = make(chan result)
    76  	)
    77  
    78  	go func() {
    79  		r := result{side: "initiator"}
    80  		defer func() { output <- r }()
    81  		defer fd0.Close()
    82  
    83  		dest := &discover.Node{ID: discover.PubkeyID(&prv1.PublicKey)}
    84  		r.id, r.err = c0.doEncHandshake(prv0, dest)
    85  		if r.err != nil {
    86  			return
    87  		}
    88  		id1 := discover.PubkeyID(&prv1.PublicKey)
    89  		if r.id != id1 {
    90  			r.err = fmt.Errorf("remote ID mismatch: got %v, want: %v", r.id, id1)
    91  		}
    92  	}()
    93  	go func() {
    94  		r := result{side: "receiver"}
    95  		defer func() { output <- r }()
    96  		defer fd1.Close()
    97  
    98  		r.id, r.err = c1.doEncHandshake(prv1, nil)
    99  		if r.err != nil {
   100  			return
   101  		}
   102  		id0 := discover.PubkeyID(&prv0.PublicKey)
   103  		if r.id != id0 {
   104  			r.err = fmt.Errorf("remote ID mismatch: got %v, want: %v", r.id, id0)
   105  		}
   106  	}()
   107  
   108  	r1, r2 := <-output, <-output
   109  	if r1.err != nil {
   110  		return fmt.Errorf("%s side error: %v", r1.side, r1.err)
   111  	}
   112  	if r2.err != nil {
   113  		return fmt.Errorf("%s side error: %v", r2.side, r2.err)
   114  	}
   115  
   116  	if !reflect.DeepEqual(c0.rw.egressMAC, c1.rw.ingressMAC) {
   117  		return fmt.Errorf("egress mac mismatch:\n c0.rw: %#v\n c1.rw: %#v", c0.rw.egressMAC, c1.rw.ingressMAC)
   118  	}
   119  	if !reflect.DeepEqual(c0.rw.ingressMAC, c1.rw.egressMAC) {
   120  		return fmt.Errorf("ingress mac mismatch:\n c0.rw: %#v\n c1.rw: %#v", c0.rw.ingressMAC, c1.rw.egressMAC)
   121  	}
   122  	if !reflect.DeepEqual(c0.rw.enc, c1.rw.enc) {
   123  		return fmt.Errorf("enc cipher mismatch:\n c0.rw: %#v\n c1.rw: %#v", c0.rw.enc, c1.rw.enc)
   124  	}
   125  	if !reflect.DeepEqual(c0.rw.dec, c1.rw.dec) {
   126  		return fmt.Errorf("dec cipher mismatch:\n c0.rw: %#v\n c1.rw: %#v", c0.rw.dec, c1.rw.dec)
   127  	}
   128  	return nil
   129  }
   130  
   131  func TestProtocolHandshake(t *testing.T) {
   132  	var (
   133  		prv0, _ = crypto.GenerateKey()
   134  		node0   = &discover.Node{ID: discover.PubkeyID(&prv0.PublicKey), IP: net.IP{1, 2, 3, 4}, TCP: 33}
   135  		hs0     = &protoHandshake{Version: 3, ID: node0.ID, Caps: []Cap{{"a", 0}, {"b", 2}}}
   136  
   137  		prv1, _ = crypto.GenerateKey()
   138  		node1   = &discover.Node{ID: discover.PubkeyID(&prv1.PublicKey), IP: net.IP{5, 6, 7, 8}, TCP: 44}
   139  		hs1     = &protoHandshake{Version: 3, ID: node1.ID, Caps: []Cap{{"c", 1}, {"d", 3}}}
   140  
   141  		wg sync.WaitGroup
   142  	)
   143  
   144  	fd0, fd1, err := tcpPipe()
   145  	if err != nil {
   146  		t.Fatal(err)
   147  	}
   148  
   149  	wg.Add(2)
   150  	go func() {
   151  		defer wg.Done()
   152  		defer fd0.Close()
   153  		rlpx := newRLPX(fd0)
   154  		remid, err := rlpx.doEncHandshake(prv0, node1)
   155  		if err != nil {
   156  			t.Errorf("dial side enc handshake failed: %v", err)
   157  			return
   158  		}
   159  		if remid != node1.ID {
   160  			t.Errorf("dial side remote id mismatch: got %v, want %v", remid, node1.ID)
   161  			return
   162  		}
   163  
   164  		phs, err := rlpx.doProtoHandshake(hs0)
   165  		if err != nil {
   166  			t.Errorf("dial side proto handshake error: %v", err)
   167  			return
   168  		}
   169  		phs.Rest = nil
   170  		if !reflect.DeepEqual(phs, hs1) {
   171  			t.Errorf("dial side proto handshake mismatch:\ngot: %s\nwant: %s\n", spew.Sdump(phs), spew.Sdump(hs1))
   172  			return
   173  		}
   174  		rlpx.close(DiscQuitting)
   175  	}()
   176  	go func() {
   177  		defer wg.Done()
   178  		defer fd1.Close()
   179  		rlpx := newRLPX(fd1)
   180  		remid, err := rlpx.doEncHandshake(prv1, nil)
   181  		if err != nil {
   182  			t.Errorf("listen side enc handshake failed: %v", err)
   183  			return
   184  		}
   185  		if remid != node0.ID {
   186  			t.Errorf("listen side remote id mismatch: got %v, want %v", remid, node0.ID)
   187  			return
   188  		}
   189  
   190  		phs, err := rlpx.doProtoHandshake(hs1)
   191  		if err != nil {
   192  			t.Errorf("listen side proto handshake error: %v", err)
   193  			return
   194  		}
   195  		phs.Rest = nil
   196  		if !reflect.DeepEqual(phs, hs0) {
   197  			t.Errorf("listen side proto handshake mismatch:\ngot: %s\nwant: %s\n", spew.Sdump(phs), spew.Sdump(hs0))
   198  			return
   199  		}
   200  
   201  		if err := ExpectMsg(rlpx, discMsg, []DiscReason{DiscQuitting}); err != nil {
   202  			t.Errorf("error receiving disconnect: %v", err)
   203  		}
   204  	}()
   205  	wg.Wait()
   206  }
   207  
   208  func TestProtocolHandshakeErrors(t *testing.T) {
   209  	our := &protoHandshake{Version: 3, Caps: []Cap{{"foo", 2}, {"bar", 3}}, Name: "quux"}
   210  	tests := []struct {
   211  		code uint64
   212  		msg  interface{}
   213  		err  error
   214  	}{
   215  		{
   216  			code: discMsg,
   217  			msg:  []DiscReason{DiscQuitting},
   218  			err:  DiscQuitting,
   219  		},
   220  		{
   221  			code: 0x989898,
   222  			msg:  []byte{1},
   223  			err:  errors.New("expected handshake, got 989898"),
   224  		},
   225  		{
   226  			code: handshakeMsg,
   227  			msg:  make([]byte, baseProtocolMaxMsgSize+2),
   228  			err:  errors.New("message too big"),
   229  		},
   230  		{
   231  			code: handshakeMsg,
   232  			msg:  []byte{1, 2, 3},
   233  			err:  newPeerError(errInvalidMsg, "(code 0) (size 4) rlp: expected input list for p2p.protoHandshake"),
   234  		},
   235  		{
   236  			code: handshakeMsg,
   237  			msg:  &protoHandshake{Version: 3},
   238  			err:  DiscInvalidIdentity,
   239  		},
   240  	}
   241  
   242  	for i, test := range tests {
   243  		p1, p2 := MsgPipe()
   244  		go Send(p1, test.code, test.msg)
   245  		_, err := readProtocolHandshake(p2, our)
   246  		if !reflect.DeepEqual(err, test.err) {
   247  			t.Errorf("test %d: error mismatch: got %q, want %q", i, err, test.err)
   248  		}
   249  	}
   250  }
   251  
   252  func TestRLPXFrameFake(t *testing.T) {
   253  	buf := new(bytes.Buffer)
   254  	hash := fakeHash([]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1})
   255  	rw := newRLPXFrameRW(buf, secrets{
   256  		AES:        crypto.Keccak256(),
   257  		MAC:        crypto.Keccak256(),
   258  		IngressMAC: hash,
   259  		EgressMAC:  hash,
   260  	})
   261  
   262  	golden := unhex(`
   263  00828ddae471818bb0bfa6b551d1cb42
   264  01010101010101010101010101010101
   265  ba628a4ba590cb43f7848f41c4382885
   266  01010101010101010101010101010101
   267  `)
   268  
   269  	if err := Send(rw, 8, []uint{1, 2, 3, 4}); err != nil {
   270  		t.Fatalf("WriteMsg error: %v", err)
   271  	}
   272  	written := buf.Bytes()
   273  	if !bytes.Equal(written, golden) {
   274  		t.Fatalf("output mismatch:\n  got:  %x\n  want: %x", written, golden)
   275  	}
   276  
   277  	msg, err := rw.ReadMsg()
   278  	if err != nil {
   279  		t.Fatalf("ReadMsg error: %v", err)
   280  	}
   281  	if msg.Size != 5 {
   282  		t.Errorf("msg size mismatch: got %d, want %d", msg.Size, 5)
   283  	}
   284  	if msg.Code != 8 {
   285  		t.Errorf("msg code mismatch: got %d, want %d", msg.Code, 8)
   286  	}
   287  	payload, _ := ioutil.ReadAll(msg.Payload)
   288  	wantPayload := unhex("C401020304")
   289  	if !bytes.Equal(payload, wantPayload) {
   290  		t.Errorf("msg payload mismatch:\ngot  %x\nwant %x", payload, wantPayload)
   291  	}
   292  }
   293  
   294  type fakeHash []byte
   295  
   296  func (fakeHash) Write(p []byte) (int, error) { return len(p), nil }
   297  func (fakeHash) Reset()                      {}
   298  func (fakeHash) BlockSize() int              { return 0 }
   299  
   300  func (h fakeHash) Size() int           { return len(h) }
   301  func (h fakeHash) Sum(b []byte) []byte { return append(b, h...) }
   302  
   303  func TestRLPXFrameRW(t *testing.T) {
   304  	var (
   305  		aesSecret      = make([]byte, 16)
   306  		macSecret      = make([]byte, 16)
   307  		egressMACinit  = make([]byte, 32)
   308  		ingressMACinit = make([]byte, 32)
   309  	)
   310  	for _, s := range [][]byte{aesSecret, macSecret, egressMACinit, ingressMACinit} {
   311  		rand.Read(s)
   312  	}
   313  	conn := new(bytes.Buffer)
   314  
   315  	s1 := secrets{
   316  		AES:        aesSecret,
   317  		MAC:        macSecret,
   318  		EgressMAC:  sha3.NewKeccak256(),
   319  		IngressMAC: sha3.NewKeccak256(),
   320  	}
   321  	s1.EgressMAC.Write(egressMACinit)
   322  	s1.IngressMAC.Write(ingressMACinit)
   323  	rw1 := newRLPXFrameRW(conn, s1)
   324  
   325  	s2 := secrets{
   326  		AES:        aesSecret,
   327  		MAC:        macSecret,
   328  		EgressMAC:  sha3.NewKeccak256(),
   329  		IngressMAC: sha3.NewKeccak256(),
   330  	}
   331  	s2.EgressMAC.Write(ingressMACinit)
   332  	s2.IngressMAC.Write(egressMACinit)
   333  	rw2 := newRLPXFrameRW(conn, s2)
   334  
   335  	for i := 0; i < 10; i++ {
   336  
   337  		wmsg := []interface{}{"foo", "bar", strings.Repeat("test", i)}
   338  		err := Send(rw1, uint64(i), wmsg)
   339  		if err != nil {
   340  			t.Fatalf("WriteMsg error (i=%d): %v", i, err)
   341  		}
   342  
   343  		msg, err := rw2.ReadMsg()
   344  		if err != nil {
   345  			t.Fatalf("ReadMsg error (i=%d): %v", i, err)
   346  		}
   347  		if msg.Code != uint64(i) {
   348  			t.Fatalf("msg code mismatch: got %d, want %d", msg.Code, i)
   349  		}
   350  		payload, _ := ioutil.ReadAll(msg.Payload)
   351  		wantPayload, _ := rlp.EncodeToBytes(wmsg)
   352  		if !bytes.Equal(payload, wantPayload) {
   353  			t.Fatalf("msg payload mismatch:\ngot  %x\nwant %x", payload, wantPayload)
   354  		}
   355  	}
   356  }
   357  
   358  type handshakeAuthTest struct {
   359  	input       string
   360  	isPlain     bool
   361  	wantVersion uint
   362  	wantRest    []rlp.RawValue
   363  }
   364  
   365  var eip8HandshakeAuthTests = []handshakeAuthTest{
   366  
   367  	{
   368  		input: `
   369  			048ca79ad18e4b0659fab4853fe5bc58eb83992980f4c9cc147d2aa31532efd29a3d3dc6a3d89eaf
   370  			913150cfc777ce0ce4af2758bf4810235f6e6ceccfee1acc6b22c005e9e3a49d6448610a58e98744
   371  			ba3ac0399e82692d67c1f58849050b3024e21a52c9d3b01d871ff5f210817912773e610443a9ef14
   372  			2e91cdba0bd77b5fdf0769b05671fc35f83d83e4d3b0b000c6b2a1b1bba89e0fc51bf4e460df3105
   373  			c444f14be226458940d6061c296350937ffd5e3acaceeaaefd3c6f74be8e23e0f45163cc7ebd7622
   374  			0f0128410fd05250273156d548a414444ae2f7dea4dfca2d43c057adb701a715bf59f6fb66b2d1d2
   375  			0f2c703f851cbf5ac47396d9ca65b6260bd141ac4d53e2de585a73d1750780db4c9ee4cd4d225173
   376  			a4592ee77e2bd94d0be3691f3b406f9bba9b591fc63facc016bfa8
   377  		`,
   378  		isPlain:     true,
   379  		wantVersion: 4,
   380  	},
   381  
   382  	{
   383  		input: `
   384  			01b304ab7578555167be8154d5cc456f567d5ba302662433674222360f08d5f1534499d3678b513b
   385  			0fca474f3a514b18e75683032eb63fccb16c156dc6eb2c0b1593f0d84ac74f6e475f1b8d56116b84
   386  			9634a8c458705bf83a626ea0384d4d7341aae591fae42ce6bd5c850bfe0b999a694a49bbbaf3ef6c
   387  			da61110601d3b4c02ab6c30437257a6e0117792631a4b47c1d52fc0f8f89caadeb7d02770bf999cc
   388  			147d2df3b62e1ffb2c9d8c125a3984865356266bca11ce7d3a688663a51d82defaa8aad69da39ab6
   389  			d5470e81ec5f2a7a47fb865ff7cca21516f9299a07b1bc63ba56c7a1a892112841ca44b6e0034dee
   390  			70c9adabc15d76a54f443593fafdc3b27af8059703f88928e199cb122362a4b35f62386da7caad09
   391  			c001edaeb5f8a06d2b26fb6cb93c52a9fca51853b68193916982358fe1e5369e249875bb8d0d0ec3
   392  			6f917bc5e1eafd5896d46bd61ff23f1a863a8a8dcd54c7b109b771c8e61ec9c8908c733c0263440e
   393  			2aa067241aaa433f0bb053c7b31a838504b148f570c0ad62837129e547678c5190341e4f1693956c
   394  			3bf7678318e2d5b5340c9e488eefea198576344afbdf66db5f51204a6961a63ce072c8926c
   395  		`,
   396  		wantVersion: 4,
   397  		wantRest:    []rlp.RawValue{},
   398  	},
   399  
   400  	{
   401  		input: `
   402  			01b8044c6c312173685d1edd268aa95e1d495474c6959bcdd10067ba4c9013df9e40ff45f5bfd6f7
   403  			2471f93a91b493f8e00abc4b80f682973de715d77ba3a005a242eb859f9a211d93a347fa64b597bf
   404  			280a6b88e26299cf263b01b8dfdb712278464fd1c25840b995e84d367d743f66c0e54a586725b7bb
   405  			f12acca27170ae3283c1073adda4b6d79f27656993aefccf16e0d0409fe07db2dc398a1b7e8ee93b
   406  			cd181485fd332f381d6a050fba4c7641a5112ac1b0b61168d20f01b479e19adf7fdbfa0905f63352
   407  			bfc7e23cf3357657455119d879c78d3cf8c8c06375f3f7d4861aa02a122467e069acaf513025ff19
   408  			6641f6d2810ce493f51bee9c966b15c5043505350392b57645385a18c78f14669cc4d960446c1757
   409  			1b7c5d725021babbcd786957f3d17089c084907bda22c2b2675b4378b114c601d858802a55345a15
   410  			116bc61da4193996187ed70d16730e9ae6b3bb8787ebcaea1871d850997ddc08b4f4ea668fbf3740
   411  			7ac044b55be0908ecb94d4ed172ece66fd31bfdadf2b97a8bc690163ee11f5b575a4b44e36e2bfb2
   412  			f0fce91676fd64c7773bac6a003f481fddd0bae0a1f31aa27504e2a533af4cef3b623f4791b2cca6
   413  			d490
   414  		`,
   415  		wantVersion: 56,
   416  		wantRest:    []rlp.RawValue{{0x01}, {0x02}, {0xC2, 0x04, 0x05}},
   417  	},
   418  }
   419  
   420  type handshakeAckTest struct {
   421  	input       string
   422  	wantVersion uint
   423  	wantRest    []rlp.RawValue
   424  }
   425  
   426  var eip8HandshakeRespTests = []handshakeAckTest{
   427  
   428  	{
   429  		input: `
   430  			049f8abcfa9c0dc65b982e98af921bc0ba6e4243169348a236abe9df5f93aa69d99cadddaa387662
   431  			b0ff2c08e9006d5a11a278b1b3331e5aaabf0a32f01281b6f4ede0e09a2d5f585b26513cb794d963
   432  			5a57563921c04a9090b4f14ee42be1a5461049af4ea7a7f49bf4c97a352d39c8d02ee4acc416388c
   433  			1c66cec761d2bc1c72da6ba143477f049c9d2dde846c252c111b904f630ac98e51609b3b1f58168d
   434  			dca6505b7196532e5f85b259a20c45e1979491683fee108e9660edbf38f3add489ae73e3dda2c71b
   435  			d1497113d5c755e942d1
   436  		`,
   437  		wantVersion: 4,
   438  	},
   439  
   440  	{
   441  		input: `
   442  			01ea0451958701280a56482929d3b0757da8f7fbe5286784beead59d95089c217c9b917788989470
   443  			b0e330cc6e4fb383c0340ed85fab836ec9fb8a49672712aeabbdfd1e837c1ff4cace34311cd7f4de
   444  			05d59279e3524ab26ef753a0095637ac88f2b499b9914b5f64e143eae548a1066e14cd2f4bd7f814
   445  			c4652f11b254f8a2d0191e2f5546fae6055694aed14d906df79ad3b407d94692694e259191cde171
   446  			ad542fc588fa2b7333313d82a9f887332f1dfc36cea03f831cb9a23fea05b33deb999e85489e645f
   447  			6aab1872475d488d7bd6c7c120caf28dbfc5d6833888155ed69d34dbdc39c1f299be1057810f34fb
   448  			e754d021bfca14dc989753d61c413d261934e1a9c67ee060a25eefb54e81a4d14baff922180c395d
   449  			3f998d70f46f6b58306f969627ae364497e73fc27f6d17ae45a413d322cb8814276be6ddd13b885b
   450  			201b943213656cde498fa0e9ddc8e0b8f8a53824fbd82254f3e2c17e8eaea009c38b4aa0a3f306e8
   451  			797db43c25d68e86f262e564086f59a2fc60511c42abfb3057c247a8a8fe4fb3ccbadde17514b7ac
   452  			8000cdb6a912778426260c47f38919a91f25f4b5ffb455d6aaaf150f7e5529c100ce62d6d92826a7
   453  			1778d809bdf60232ae21ce8a437eca8223f45ac37f6487452ce626f549b3b5fdee26afd2072e4bc7
   454  			5833c2464c805246155289f4
   455  		`,
   456  		wantVersion: 4,
   457  		wantRest:    []rlp.RawValue{},
   458  	},
   459  
   460  	{
   461  		input: `
   462  			01f004076e58aae772bb101ab1a8e64e01ee96e64857ce82b1113817c6cdd52c09d26f7b90981cd7
   463  			ae835aeac72e1573b8a0225dd56d157a010846d888dac7464baf53f2ad4e3d584531fa203658fab0
   464  			3a06c9fd5e35737e417bc28c1cbf5e5dfc666de7090f69c3b29754725f84f75382891c561040ea1d
   465  			dc0d8f381ed1b9d0d4ad2a0ec021421d847820d6fa0ba66eaf58175f1b235e851c7e2124069fbc20
   466  			2888ddb3ac4d56bcbd1b9b7eab59e78f2e2d400905050f4a92dec1c4bdf797b3fc9b2f8e84a482f3
   467  			d800386186712dae00d5c386ec9387a5e9c9a1aca5a573ca91082c7d68421f388e79127a5177d4f8
   468  			590237364fd348c9611fa39f78dcdceee3f390f07991b7b47e1daa3ebcb6ccc9607811cb17ce51f1
   469  			c8c2c5098dbdd28fca547b3f58c01a424ac05f869f49c6a34672ea2cbbc558428aa1fe48bbfd6115
   470  			8b1b735a65d99f21e70dbc020bfdface9f724a0d1fb5895db971cc81aa7608baa0920abb0a565c9c
   471  			436e2fd13323428296c86385f2384e408a31e104670df0791d93e743a3a5194ee6b076fb6323ca59
   472  			3011b7348c16cf58f66b9633906ba54a2ee803187344b394f75dd2e663a57b956cb830dd7a908d4f
   473  			39a2336a61ef9fda549180d4ccde21514d117b6c6fd07a9102b5efe710a32af4eeacae2cb3b1dec0
   474  			35b9593b48b9d3ca4c13d245d5f04169b0b1
   475  		`,
   476  		wantVersion: 57,
   477  		wantRest:    []rlp.RawValue{{0x06}, {0xC2, 0x07, 0x08}, {0x81, 0xFA}},
   478  	},
   479  }
   480  
   481  func TestHandshakeForwardCompatibility(t *testing.T) {
   482  	var (
   483  		keyA, _       = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
   484  		keyB, _       = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
   485  		pubA          = crypto.FromECDSAPub(&keyA.PublicKey)[1:]
   486  		pubB          = crypto.FromECDSAPub(&keyB.PublicKey)[1:]
   487  		ephA, _       = crypto.HexToECDSA("869d6ecf5211f1cc60418a13b9d870b22959d0c16f02bec714c960dd2298a32d")
   488  		ephB, _       = crypto.HexToECDSA("e238eb8e04fee6511ab04c6dd3c89ce097b11f25d584863ac2b6d5b35b1847e4")
   489  		ephPubA       = crypto.FromECDSAPub(&ephA.PublicKey)[1:]
   490  		ephPubB       = crypto.FromECDSAPub(&ephB.PublicKey)[1:]
   491  		nonceA        = unhex("7e968bba13b6c50e2c4cd7f241cc0d64d1ac25c7f5952df231ac6a2bda8ee5d6")
   492  		nonceB        = unhex("559aead08264d5795d3909718cdd05abd49572e84fe55590eef31a88a08fdffd")
   493  		_, _, _, _    = pubA, pubB, ephPubA, ephPubB
   494  		authSignature = unhex("299ca6acfd35e3d72d8ba3d1e2b60b5561d5af5218eb5bc182045769eb4226910a301acae3b369fffc4a4899d6b02531e89fd4fe36a2cf0d93607ba470b50f7800")
   495  		_             = authSignature
   496  	)
   497  	makeAuth := func(test handshakeAuthTest) *authMsgV4 {
   498  		msg := &authMsgV4{Version: test.wantVersion, Rest: test.wantRest, gotPlain: test.isPlain}
   499  		copy(msg.Signature[:], authSignature)
   500  		copy(msg.InitiatorPubkey[:], pubA)
   501  		copy(msg.Nonce[:], nonceA)
   502  		return msg
   503  	}
   504  	makeAck := func(test handshakeAckTest) *authRespV4 {
   505  		msg := &authRespV4{Version: test.wantVersion, Rest: test.wantRest}
   506  		copy(msg.RandomPubkey[:], ephPubB)
   507  		copy(msg.Nonce[:], nonceB)
   508  		return msg
   509  	}
   510  
   511  	for _, test := range eip8HandshakeAuthTests {
   512  		r := bytes.NewReader(unhex(test.input))
   513  		msg := new(authMsgV4)
   514  		ciphertext, err := readHandshakeMsg(msg, encAuthMsgLen, keyB, r)
   515  		if err != nil {
   516  			t.Errorf("error for input %x:\n  %v", unhex(test.input), err)
   517  			continue
   518  		}
   519  		if !bytes.Equal(ciphertext, unhex(test.input)) {
   520  			t.Errorf("wrong ciphertext for input %x:\n  %x", unhex(test.input), ciphertext)
   521  		}
   522  		want := makeAuth(test)
   523  		if !reflect.DeepEqual(msg, want) {
   524  			t.Errorf("wrong msg for input %x:\ngot %s\nwant %s", unhex(test.input), spew.Sdump(msg), spew.Sdump(want))
   525  		}
   526  	}
   527  
   528  	for _, test := range eip8HandshakeRespTests {
   529  		input := unhex(test.input)
   530  		r := bytes.NewReader(input)
   531  		msg := new(authRespV4)
   532  		ciphertext, err := readHandshakeMsg(msg, encAuthRespLen, keyA, r)
   533  		if err != nil {
   534  			t.Errorf("error for input %x:\n  %v", input, err)
   535  			continue
   536  		}
   537  		if !bytes.Equal(ciphertext, input) {
   538  			t.Errorf("wrong ciphertext for input %x:\n  %x", input, err)
   539  		}
   540  		want := makeAck(test)
   541  		if !reflect.DeepEqual(msg, want) {
   542  			t.Errorf("wrong msg for input %x:\ngot %s\nwant %s", input, spew.Sdump(msg), spew.Sdump(want))
   543  		}
   544  	}
   545  
   546  	var (
   547  		hs = &encHandshake{
   548  			initiator:     false,
   549  			respNonce:     nonceB,
   550  			randomPrivKey: ecies.ImportECDSA(ephB),
   551  		}
   552  		authCiphertext     = unhex(eip8HandshakeAuthTests[1].input)
   553  		authRespCiphertext = unhex(eip8HandshakeRespTests[1].input)
   554  		authMsg            = makeAuth(eip8HandshakeAuthTests[1])
   555  		wantAES            = unhex("80e8632c05fed6fc2a13b0f8d31a3cf645366239170ea067065aba8e28bac487")
   556  		wantMAC            = unhex("2ea74ec5dae199227dff1af715362700e989d889d7a493cb0639691efb8e5f98")
   557  		wantFooIngressHash = unhex("0c7ec6340062cc46f5e9f1e3cf86f8c8c403c5a0964f5df0ebd34a75ddc86db5")
   558  	)
   559  	if err := hs.handleAuthMsg(authMsg, keyB); err != nil {
   560  		t.Fatalf("handleAuthMsg: %v", err)
   561  	}
   562  	derived, err := hs.secrets(authCiphertext, authRespCiphertext)
   563  	if err != nil {
   564  		t.Fatalf("secrets: %v", err)
   565  	}
   566  	if !bytes.Equal(derived.AES, wantAES) {
   567  		t.Errorf("aes-secret mismatch:\ngot %x\nwant %x", derived.AES, wantAES)
   568  	}
   569  	if !bytes.Equal(derived.MAC, wantMAC) {
   570  		t.Errorf("mac-secret mismatch:\ngot %x\nwant %x", derived.MAC, wantMAC)
   571  	}
   572  	io.WriteString(derived.IngressMAC, "foo")
   573  	fooIngressHash := derived.IngressMAC.Sum(nil)
   574  	if !bytes.Equal(fooIngressHash, wantFooIngressHash) {
   575  		t.Errorf("ingress-mac('foo') mismatch:\ngot %x\nwant %x", fooIngressHash, wantFooIngressHash)
   576  	}
   577  }
   578  
   579  func tcpPipe() (net.Conn, net.Conn, error) {
   580  	l, err := net.Listen("tcp", "127.0.0.1:0")
   581  	if err != nil {
   582  		return nil, nil, err
   583  	}
   584  	defer l.Close()
   585  
   586  	var aconn net.Conn
   587  	aerr := make(chan error, 1)
   588  	go func() {
   589  		var err error
   590  		aconn, err = l.Accept()
   591  		aerr <- err
   592  	}()
   593  
   594  	dconn, err := net.Dial("tcp", l.Addr().String())
   595  	if err != nil {
   596  		<-aerr
   597  		return nil, nil, err
   598  	}
   599  	if err := <-aerr; err != nil {
   600  		dconn.Close()
   601  		return nil, nil, err
   602  	}
   603  	return aconn, dconn, nil
   604  }