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p2p: encrypted and authenticated RLPx frame I/O

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This commit is contained in:
Felix Lange
2015-02-27 02:09:53 +00:00
parent 936dd0f3bc
commit 51e01cceca
4 changed files with 196 additions and 171 deletions
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44
p2p/rlpx_test.go
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@ -16,14 +16,18 @@ import (
func TestRlpxFrameFake(t *testing.T) {
buf := new(bytes.Buffer)
secret := crypto.Sha3()
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})
rw := newRlpxFrameRW(buf, secret, hash, hash)
rw := newRlpxFrameRW(buf, secrets{
AES: crypto.Sha3(),
MAC: crypto.Sha3(),
IngressMAC: hash,
EgressMAC: hash,
})
golden := unhex(`
000006C2808000000000000000000000
00828ddae471818bb0bfa6b551d1cb42
01010101010101010101010101010101
08C40102030400000000000000000000
ba628a4ba590cb43f7848f41c4382885
01010101010101010101010101010101
01010101010101010101010101010101
`)
@ -75,27 +79,35 @@ func unhex(str string) []byte {
func TestRlpxFrameRW(t *testing.T) {
var (
aesSecret = make([]byte, 16)
macSecret = make([]byte, 16)
egressMACinit = make([]byte, 32)
ingressMACinit = make([]byte, 32)
)
for _, s := range [][]byte{macSecret, egressMACinit, ingressMACinit} {
for _, s := range [][]byte{aesSecret, macSecret, egressMACinit, ingressMACinit} {
rand.Read(s)
}
conn := new(bytes.Buffer)
em1 := sha3.NewKeccak256()
em1.Write(egressMACinit)
im1 := sha3.NewKeccak256()
im1.Write(ingressMACinit)
rw1 := newRlpxFrameRW(conn, macSecret, em1, im1)
s1 := secrets{
AES: aesSecret,
MAC: macSecret,
EgressMAC: sha3.NewKeccak256(),
IngressMAC: sha3.NewKeccak256(),
}
s1.EgressMAC.Write(egressMACinit)
s1.IngressMAC.Write(ingressMACinit)
rw1 := newRlpxFrameRW(conn, s1)
em2 := sha3.NewKeccak256()
em2.Write(ingressMACinit)
im2 := sha3.NewKeccak256()
im2.Write(egressMACinit)
rw2 := newRlpxFrameRW(conn, macSecret, em2, im2)
s2 := secrets{
AES: aesSecret,
MAC: macSecret,
EgressMAC: sha3.NewKeccak256(),
IngressMAC: sha3.NewKeccak256(),
}
s2.EgressMAC.Write(ingressMACinit)
s2.IngressMAC.Write(egressMACinit)
rw2 := newRlpxFrameRW(conn, s2)
// send some messages
for i := 0; i < 10; i++ {