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p2p/discover: implement v5.1 wire protocol (#21647)

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This change implements the Discovery v5.1 wire protocol and
also adds an interactive test suite for this protocol.
This commit is contained in:
Felix Lange
2020-10-14 12:28:17 +02:00
committed by GitHub
parent 4eb01b21c8
commit 524aaf5ec6
24 changed files with 3236 additions and 1427 deletions
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5
p2p/discover/node.go
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@ -46,7 +46,10 @@ func encodePubkey(key *ecdsa.PublicKey) encPubkey {
return e
}
func decodePubkey(curve elliptic.Curve, e encPubkey) (*ecdsa.PublicKey, error) {
func decodePubkey(curve elliptic.Curve, e []byte) (*ecdsa.PublicKey, error) {
if len(e) != len(encPubkey{}) {
return nil, errors.New("wrong size public key data")
}
p := &ecdsa.PublicKey{Curve: curve, X: new(big.Int), Y: new(big.Int)}
half := len(e) / 2
p.X.SetBytes(e[:half])