mirror of
https://github.com/ethereum/go-ethereum.git
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763779faf6
Package p2p/enode provides a generalized representation of p2p nodes which can contain arbitrary information in key/value pairs. It is also the new home for the node database. The "v4" identity scheme is also moved here from p2p/enr to remove the dependency on Ethereum crypto from that package. Record signature handling is changed significantly. The identity scheme registry is removed and acceptable schemes must be passed to any method that needs identity. This means records must now be validated explicitly after decoding. The enode API is designed to make signature handling easy and safe: most APIs around the codebase work with enode.Node, which is a wrapper around a valid record. Going from enr.Record to enode.Node requires a valid signature.
74 lines
2.3 KiB
Go
74 lines
2.3 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package enode
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import (
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"bytes"
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"crypto/ecdsa"
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"encoding/hex"
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"math/big"
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"testing"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/p2p/enr"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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var (
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privkey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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pubkey = &privkey.PublicKey
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)
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func TestEmptyNodeID(t *testing.T) {
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var r enr.Record
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if addr := ValidSchemes.NodeAddr(&r); addr != nil {
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t.Errorf("wrong address on empty record: got %v, want %v", addr, nil)
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}
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require.NoError(t, SignV4(&r, privkey))
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expected := "a448f24c6d18e575453db13171562b71999873db5b286df957af199ec94617f7"
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assert.Equal(t, expected, hex.EncodeToString(ValidSchemes.NodeAddr(&r)))
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}
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// Checks that failure to sign leaves the record unmodified.
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func TestSignError(t *testing.T) {
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invalidKey := &ecdsa.PrivateKey{D: new(big.Int), PublicKey: *pubkey}
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var r enr.Record
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emptyEnc, _ := rlp.EncodeToBytes(&r)
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if err := SignV4(&r, invalidKey); err == nil {
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t.Fatal("expected error from SignV4")
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}
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newEnc, _ := rlp.EncodeToBytes(&r)
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if !bytes.Equal(newEnc, emptyEnc) {
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t.Fatal("record modified even though signing failed")
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}
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}
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// TestGetSetSecp256k1 tests encoding/decoding and setting/getting of the Secp256k1 key.
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func TestGetSetSecp256k1(t *testing.T) {
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var r enr.Record
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if err := SignV4(&r, privkey); err != nil {
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t.Fatal(err)
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}
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var pk Secp256k1
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require.NoError(t, r.Load(&pk))
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assert.EqualValues(t, pubkey, &pk)
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}
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