df717abc99
This PR fixes two issues in the PoW calculation of a Whisper envelope, compared to the spec (see PoW Requirements): - The pow is supposed to take the leading number of zeroes (i.e. most significant zeroes) and what it did was to take the number of trailing zeroes (i.e. least significant zeroes). It has been fixed to match what the spec and Parity does. - The spec expects to use the size of the RLP encoded envelope, and it took something else, as described in #18070.
92 lines
2.4 KiB
Go
92 lines
2.4 KiB
Go
// Copyright 2017 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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// Contains the tests associated with the Whisper protocol Envelope object.
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package whisperv6
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import (
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mrand "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 TestPoWCalculationsWithNoLeadingZeros(t *testing.T) {
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e := Envelope{
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TTL: 1,
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Data: []byte{0xde, 0xad, 0xbe, 0xef},
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Nonce: 100000,
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}
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e.calculatePoW(0)
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if e.pow != 0.07692307692307693 {
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t.Fatalf("invalid PoW calculation. Expected 0.07692307692307693, got %v", e.pow)
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}
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}
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func TestPoWCalculationsWith8LeadingZeros(t *testing.T) {
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e := Envelope{
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TTL: 1,
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Data: []byte{0xde, 0xad, 0xbe, 0xef},
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Nonce: 48159,
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}
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e.calculatePoW(0)
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if e.pow != 40329.846153846156 {
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t.Fatalf("invalid PoW calculation. Expected 0.07692307692307693, got %v", e.pow)
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}
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}
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func TestEnvelopeOpenAcceptsOnlyOneKeyTypeInFilter(t *testing.T) {
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symKey := make([]byte, aesKeyLength)
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mrand.Read(symKey)
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asymKey, err := crypto.GenerateKey()
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if err != nil {
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t.Fatalf("failed GenerateKey with seed %d: %s.", seed, err)
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}
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params := MessageParams{
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PoW: 0.01,
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WorkTime: 1,
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TTL: uint32(mrand.Intn(1024)),
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Payload: make([]byte, 50),
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KeySym: symKey,
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Dst: nil,
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}
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mrand.Read(params.Payload)
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msg, err := NewSentMessage(¶ms)
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if err != nil {
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t.Fatalf("failed to create new message with seed %d: %s.", seed, err)
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}
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e, err := msg.Wrap(¶ms)
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if err != nil {
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t.Fatalf("Failed to Wrap the message in an envelope with seed %d: %s", seed, err)
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}
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f := Filter{KeySym: symKey, KeyAsym: asymKey}
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decrypted := e.Open(&f)
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if decrypted != nil {
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t.Fatalf("Managed to decrypt a message with an invalid filter, seed %d", seed)
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}
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}
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