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// Copyright (C) 2019-2021 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package multisig
import (
"path/filepath"
"testing"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/transactions"
"github.com/algorand/go-algorand/test/framework/fixtures"
"github.com/algorand/go-algorand/test/partitiontest"
"github.com/stretchr/testify/require"
)
// create a 2 out of 3 multisig address
// try to transact with 1 sig: expect failure
// try to transact with 2 sigs: expect success
// try to transact with 3 sigs: expect success
func TestBasicMultisig(t *testing.T) {
partitiontest.PartitionTest(t)
defer fixtures.ShutdownSynchronizedTest(t)
t.Parallel()
var fixture fixtures.RestClientFixture
fixture.Setup(t, filepath.Join("nettemplates", "TwoNodes50Each.json"))
defer fixture.Shutdown()
r := require.New(fixtures.SynchronizedTest(t))
// create three addrs
client := fixture.LibGoalClient
fundingAccount, err := fixture.GetRichestAccount()
r.NoError(err, "fixture should be able to get richest account.")
walletHandle, err := client.GetUnencryptedWalletHandle()
r.NoError(err, "Getting default wallet handle should not return error")
r.NotEmpty(walletHandle, "Wallet handle should not be empty")
const numAccounts = uint8(3)
var addrs []string
for i := uint8(0); i < numAccounts; i++ {
account, err := client.GenerateAddress(walletHandle)
r.NoError(err, "Generating address should not return error")
r.NotEmpty(account, "Address generation should not return empty string")
addrs = append(addrs, account)
}
// use the new addrs to create a 2 of 3 multisig address
const threshold = numAccounts - 1
multisigAddr, err := client.CreateMultisigAccount(walletHandle, threshold, addrs)
r.NoError(err, "Unexpected error during multisig address creation")
r.NotEmpty(multisigAddr, "Created multisig address unexpectedly empty")
minTxnFee, minAcctBalance, err := fixture.CurrentMinFeeAndBalance()
r.NoError(err)
// fund the new multisig address
fundingAddr := fundingAccount.Address
// fund account with enough Algos to allow for 3 transactions and still keep a minBalance in the account
amountToFund := 4*minAcctBalance + 3*minTxnFee
curStatus, err := client.Status()
fixture.SendMoneyAndWait(curStatus.LastRound, amountToFund, minTxnFee, fundingAddr, multisigAddr, "")
// try to transact with 1 of 3
amountToSend := minAcctBalance
unsignedTransaction, err := client.ConstructPayment(multisigAddr, addrs[0], minTxnFee, amountToSend, nil, "", [32]byte{}, 0, 0)
r.NoError(err, "Unexpected error when constructing payment transaction")
emptyPartial := crypto.MultisigSig{}
emptySignature := crypto.Signature{}
signatureWithOne, err := client.UnencryptedMultisigSignTransaction(unsignedTransaction, addrs[0], emptyPartial)
r.NoError(err, "first signing returned error")
signedTransactionWithOne, err := transactions.AssembleSignedTxn(unsignedTransaction, emptySignature, signatureWithOne)
_, err = client.BroadcastTransaction(signedTransactionWithOne)
r.Error(err, "Trying to broadcast 2-of-3 multisig with 1 sig should fail")
// try to transact with 2 of 3
signatureWithTwo, err := client.UnencryptedMultisigSignTransaction(unsignedTransaction, addrs[1], signatureWithOne)
r.NoError(err, "second signing returned error")
signedTransactionWithTwo, err := transactions.AssembleSignedTxn(unsignedTransaction, emptySignature, signatureWithTwo)
txid, err := client.BroadcastTransaction(signedTransactionWithTwo)
r.NoError(err, "Trying to broadcast 2-of-3 multisig with 2 sig should not cause error")
curStatus, _ = client.Status()
r.True(fixture.WaitForTxnConfirmation(curStatus.LastRound+uint64(5), multisigAddr, txid))
// Need a new txid to avoid dup detection
unsignedTransaction, err = client.ConstructPayment(multisigAddr, addrs[0], minTxnFee, amountToSend, []byte("foobar"), "", [32]byte{}, 0, 0)
r.NoError(err, "Unexpected error when constructing payment transaction")
signatureWithOne, err = client.UnencryptedMultisigSignTransaction(unsignedTransaction, addrs[0], emptyPartial)
r.NoError(err, "first signing returned error")
signatureWithTwo, err = client.UnencryptedMultisigSignTransaction(unsignedTransaction, addrs[1], signatureWithOne)
r.NoError(err, "second signing returned error")
// try to transact with 3 of 3
signatureWithThree, err := client.UnencryptedMultisigSignTransaction(unsignedTransaction, addrs[2], signatureWithTwo)
r.NoError(err, "third signing returned error")
signedTransactionWithThree, err := transactions.AssembleSignedTxn(unsignedTransaction, emptySignature, signatureWithThree)
_, err = client.BroadcastTransaction(signedTransactionWithThree)
r.NoError(err, "Trying to broadcast 2-of-3 multisig with 3 sig should not cause error")
}
// create a 0-of-3 multisig address: expect failure
func TestZeroThreshold(t *testing.T) {
partitiontest.PartitionTest(t)
defer fixtures.ShutdownSynchronizedTest(t)
t.Parallel()
var fixture fixtures.RestClientFixture
fixture.Setup(t, filepath.Join("nettemplates", "TwoNodes50Each.json"))
defer fixture.Shutdown()
r := require.New(fixtures.SynchronizedTest(t))
client := fixture.LibGoalClient
walletHandle, err := client.GetUnencryptedWalletHandle()
r.NoError(err, "Getting default wallet handle should not return error")
r.NotEmpty(walletHandle, "Wallet handle should not be empty")
const numAccounts = uint8(3)
var addrs []string
for i := uint8(0); i < numAccounts; i++ {
account, err := client.GenerateAddress(walletHandle)
r.NoError(err, "Generating address should not return error")
r.NotEmpty(account, "Address generation should not return empty string")
addrs = append(addrs, account)
}
const threshold = 0 // this threshold of 0 is what should cause the error
multisigAddr, err := client.CreateMultisigAccount(walletHandle, threshold, addrs)
r.Error(err, "expected error when creating a multisig addr with threshold of 0")
r.Empty(multisigAddr, "should not have received an addr when creating bad multisig addr")
}
// create a 3-of-0 multisig address: expect failure
func TestZeroSigners(t *testing.T) {
partitiontest.PartitionTest(t)
defer fixtures.ShutdownSynchronizedTest(t)
t.Parallel()
var fixture fixtures.RestClientFixture
fixture.Setup(t, filepath.Join("nettemplates", "TwoNodes50Each.json"))
defer fixture.Shutdown()
r := require.New(fixtures.SynchronizedTest(t))
client := fixture.LibGoalClient
walletHandle, err := client.GetUnencryptedWalletHandle()
r.NoError(err, "Getting default wallet handle should not return error")
r.NotEmpty(walletHandle, "Wallet handle should not be empty")
const threshold = 3
var addrs []string // no addrs for this test, which should cause an error
multisigAddr, err := client.CreateMultisigAccount(walletHandle, threshold, addrs)
r.Error(err, "expected error when creating a multisig addr with no potential signers")
r.Empty(multisigAddr, "should not have received an addr when creating bad multisig addr")
}
// create an n-of-n+1 multisig address
// where the valid keys are all the same
// then try to transact
func TestDuplicateKeys(t *testing.T) {
partitiontest.PartitionTest(t)
defer fixtures.ShutdownSynchronizedTest(t)
t.Parallel()
var fixture fixtures.RestClientFixture
fixture.Setup(t, filepath.Join("nettemplates", "TwoNodes50Each.json"))
defer fixture.Shutdown()
r := require.New(fixtures.SynchronizedTest(t))
// create one addr
client := fixture.LibGoalClient
fundingAccount, err := fixture.GetRichestAccount()
r.NoError(err, "fixture should be able to get richest account.")
walletHandle, err := client.GetUnencryptedWalletHandle()
r.NoError(err, "Getting default wallet handle should not return error")
r.NotEmpty(walletHandle, "Wallet handle should not be empty")
const numAccounts = uint8(30)
var addrs []string
account, err := client.GenerateAddress(walletHandle)
r.NoError(err, "Generating address should not return error")
r.NotEmpty(account, "Address generation should not return empty string")
for i := uint8(0); i < numAccounts; i++ {
addrs = append(addrs, account)
}
const threshold = numAccounts - 1
// use the addr to create a "many"-keyed multisig address (where in fact each key is the same, duplicated, key)
multisigAddr, err := client.CreateMultisigAccount(walletHandle, threshold, addrs)
r.NoError(err, "Unexpected error during multisig address creation")
r.NotEmpty(multisigAddr, "Created multisig address unexpectedly empty")
minTxnFee, minAcctBalance, err := fixture.CurrentMinFeeAndBalance()
r.NoError(err)
// fund the new multisig address
fundingAddr := fundingAccount.Address
amountToFund := 3 * minAcctBalance
txnFee := minTxnFee
curStatus, _ := client.Status()
fixture.SendMoneyAndWait(curStatus.LastRound, amountToFund, txnFee, fundingAddr, multisigAddr, "")
// try to transact with "1" signature (though, this is a signature from "every" member of the multisig)
amountToSend := minAcctBalance
unsignedTransaction, err := client.ConstructPayment(multisigAddr, addrs[0], txnFee, amountToSend, nil, "", [32]byte{}, 0, 0)
r.NoError(err, "Unexpected error when constructing payment transaction")
emptyPartial := crypto.MultisigSig{}
emptySignature := crypto.Signature{}
signatureWithOne, err := client.UnencryptedMultisigSignTransaction(unsignedTransaction, addrs[0], emptyPartial)
r.NoError(err, "Signing returned error")
signedTransactionWithOne, err := transactions.AssembleSignedTxn(unsignedTransaction, emptySignature, signatureWithOne)
_, err = client.BroadcastTransaction(signedTransactionWithOne)
r.NoError(err, "One signature should be sufficient since multisig members are duplicated")
}
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