whisper: project restructured, version 5 introduced (#3022)
whisper: project restructured, version 5 introduced This commits adds a draft version of the new shh v5 protocol. The new version is not on by default, --shh still selects version 2.
This commit is contained in:
gluk256
Felix Lange
306
whisper/whisperv5/message_test.go
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306
whisper/whisperv5/message_test.go
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// Copyright 2016 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 whisperv5
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import (
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"bytes"
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"math/rand"
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"testing"
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"github.com/ethereum/go-ethereum/crypto"
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)
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func copyFromBuf(dst []byte, src []byte, beg int) int {
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copy(dst, src[beg:])
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return beg + len(dst)
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}
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func generateMessageParams() (*MessageParams, error) {
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buf := make([]byte, 1024)
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randomize(buf)
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sz := rand.Intn(400)
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var p MessageParams
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p.TTL = uint32(rand.Intn(1024))
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p.Payload = make([]byte, sz)
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p.Padding = make([]byte, padSizeLimitUpper)
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p.KeySym = make([]byte, aesKeyLength)
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var b int
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b = copyFromBuf(p.Payload, buf, b)
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b = copyFromBuf(p.Padding, buf, b)
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b = copyFromBuf(p.KeySym, buf, b)
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p.Topic = BytesToTopic(buf[b:])
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var err error
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p.Src, err = crypto.GenerateKey()
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if err != nil {
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return nil, err
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}
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// p.Dst, p.PoW, p.WorkTime are not set
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p.PoW = 0.01
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return &p, nil
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}
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func singleMessageTest(x *testing.T, symmetric bool) {
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params, err := generateMessageParams()
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if err != nil {
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x.Errorf("failed generateMessageParams with seed %d: %s.", seed, err)
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return
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}
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key, err := crypto.GenerateKey()
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if err != nil {
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x.Errorf("failed GenerateKey with seed %d: %s.", seed, err)
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return
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}
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if !symmetric {
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params.KeySym = nil
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params.Dst = &key.PublicKey
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}
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text := make([]byte, 0, 512)
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steg := make([]byte, 0, 512)
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raw := make([]byte, 0, 1024)
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text = append(text, params.Payload...)
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steg = append(steg, params.Padding...)
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raw = append(raw, params.Padding...)
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msg := NewSentMessage(params)
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env, err := msg.Wrap(params)
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if err != nil {
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x.Errorf("failed Wrap with seed %d: %s.", seed, err)
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return
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}
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var decrypted *ReceivedMessage
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if symmetric {
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decrypted, err = env.OpenSymmetric(params.KeySym)
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} else {
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decrypted, err = env.OpenAsymmetric(key)
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}
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if err != nil {
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x.Errorf("failed to encrypt with seed %d: %s.", seed, err)
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return
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}
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if !decrypted.Validate() {
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x.Errorf("failed to validate with seed %d.", seed)
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return
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}
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padsz := len(decrypted.Padding)
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if bytes.Compare(steg[:padsz], decrypted.Padding) != 0 {
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x.Errorf("failed with seed %d: compare padding.", seed)
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return
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}
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if bytes.Compare(text, decrypted.Payload) != 0 {
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x.Errorf("failed with seed %d: compare payload.", seed)
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return
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}
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if !isMessageSigned(decrypted.Raw[0]) {
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x.Errorf("failed with seed %d: unsigned.", seed)
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return
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}
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if len(decrypted.Signature) != signatureLength {
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x.Errorf("failed with seed %d: signature len %d.", seed, len(decrypted.Signature))
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return
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}
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if !isPubKeyEqual(decrypted.Src, ¶ms.Src.PublicKey) {
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x.Errorf("failed with seed %d: signature mismatch.", seed)
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return
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}
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}
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func TestMessageEncryption(x *testing.T) {
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InitSingleTest()
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var symmetric bool
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for i := 0; i < 256; i++ {
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singleMessageTest(x, symmetric)
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symmetric = !symmetric
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}
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}
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func TestMessageWrap(x *testing.T) {
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seed = int64(1777444222)
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rand.Seed(seed)
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target := 128.0
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params, err := generateMessageParams()
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if err != nil {
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x.Errorf("failed generateMessageParams with seed %d: %s.", seed, err)
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return
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}
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msg := NewSentMessage(params)
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params.TTL = 1
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params.WorkTime = 12
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params.PoW = target
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env, err := msg.Wrap(params)
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if err != nil {
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x.Errorf("failed Wrap with seed %d: %s.", seed, err)
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return
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}
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pow := env.PoW()
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if pow < target {
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x.Errorf("failed Wrap with seed %d: pow < target (%f vs. %f).", seed, pow, target)
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return
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}
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}
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func TestMessageSeal(x *testing.T) {
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// this test depends on deterministic choice of seed (1976726903)
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seed = int64(1976726903)
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rand.Seed(seed)
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params, err := generateMessageParams()
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if err != nil {
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x.Errorf("failed generateMessageParams with seed %d: %s.", seed, err)
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return
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}
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msg := NewSentMessage(params)
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params.TTL = 1
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aesnonce := make([]byte, 12)
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salt := make([]byte, 12)
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randomize(aesnonce)
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randomize(salt)
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env := NewEnvelope(params.TTL, params.Topic, salt, aesnonce, msg)
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if err != nil {
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x.Errorf("failed Wrap with seed %d: %s.", seed, err)
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return
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}
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env.Expiry = uint32(seed) // make it deterministic
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target := 32.0
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params.WorkTime = 4
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params.PoW = target
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env.Seal(params)
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env.calculatePoW(0)
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pow := env.PoW()
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if pow < target {
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x.Errorf("failed Wrap with seed %d: pow < target (%f vs. %f).", seed, pow, target)
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return
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}
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params.WorkTime = 1
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params.PoW = 1000000000.0
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env.Seal(params)
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env.calculatePoW(0)
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pow = env.PoW()
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if pow < 2*target {
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x.Errorf("failed Wrap with seed %d: pow too small %f.", seed, pow)
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return
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}
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}
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func TestEnvelopeOpen(x *testing.T) {
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InitSingleTest()
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var symmetric bool
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for i := 0; i < 256; i++ {
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singleEnvelopeOpenTest(x, symmetric)
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symmetric = !symmetric
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}
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}
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func singleEnvelopeOpenTest(x *testing.T, symmetric bool) {
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params, err := generateMessageParams()
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if err != nil {
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x.Errorf("failed generateMessageParams with seed %d: %s.", seed, err)
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return
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}
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key, err := crypto.GenerateKey()
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if err != nil {
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x.Errorf("failed GenerateKey with seed %d: %s.", seed, err)
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return
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}
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if !symmetric {
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params.KeySym = nil
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params.Dst = &key.PublicKey
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}
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text := make([]byte, 0, 512)
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steg := make([]byte, 0, 512)
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raw := make([]byte, 0, 1024)
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text = append(text, params.Payload...)
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steg = append(steg, params.Padding...)
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raw = append(raw, params.Padding...)
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msg := NewSentMessage(params)
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env, err := msg.Wrap(params)
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if err != nil {
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x.Errorf("failed Wrap with seed %d: %s.", seed, err)
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return
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}
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f := Filter{KeyAsym: key, KeySym: params.KeySym}
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decrypted := env.Open(&f)
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if decrypted == nil {
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x.Errorf("failed to open with seed %d.", seed)
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return
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}
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padsz := len(decrypted.Padding)
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if bytes.Compare(steg[:padsz], decrypted.Padding) != 0 {
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x.Errorf("failed with seed %d: compare padding.", seed)
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return
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}
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if bytes.Compare(text, decrypted.Payload) != 0 {
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x.Errorf("failed with seed %d: compare payload.", seed)
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return
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}
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if !isMessageSigned(decrypted.Raw[0]) {
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x.Errorf("failed with seed %d: unsigned.", seed)
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return
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}
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if len(decrypted.Signature) != signatureLength {
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x.Errorf("failed with seed %d: signature len %d.", seed, len(decrypted.Signature))
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return
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}
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if !isPubKeyEqual(decrypted.Src, ¶ms.Src.PublicKey) {
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x.Errorf("failed with seed %d: signature mismatch.", seed)
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return
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}
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if decrypted.isAsymmetricEncryption() == symmetric {
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x.Errorf("failed with seed %d: asymmetric %v vs. %v.", seed, decrypted.isAsymmetricEncryption(), symmetric)
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return
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}
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if decrypted.isSymmetricEncryption() != symmetric {
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x.Errorf("failed with seed %d: symmetric %v vs. %v.", seed, decrypted.isSymmetricEncryption(), symmetric)
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return
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}
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if !symmetric {
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if decrypted.Dst == nil {
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x.Errorf("failed with seed %d: dst is nil.", seed)
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return
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}
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if !isPubKeyEqual(decrypted.Dst, &key.PublicKey) {
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x.Errorf("failed with seed %d: Dst.", seed)
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return
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}
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}
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}
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