111 lines
3.2 KiB
Go
111 lines
3.2 KiB
Go
package crypto
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import (
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"encoding/binary"
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/core/interop"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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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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func initCHECKMULTISIG(msg []byte, n int) ([]stackitem.Item, []stackitem.Item, map[string]*keys.PublicKey, error) {
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var err error
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keyMap := make(map[string]*keys.PublicKey)
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pkeys := make([]*keys.PrivateKey, n)
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pubs := make([]stackitem.Item, n)
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for i := range pubs {
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pkeys[i], err = keys.NewPrivateKey()
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if err != nil {
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return nil, nil, nil, err
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}
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pk := pkeys[i].PublicKey()
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data := pk.Bytes()
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pubs[i] = stackitem.NewByteArray(data)
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keyMap[string(data)] = pk
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}
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sigs := make([]stackitem.Item, n)
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for i := range sigs {
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sig := pkeys[i].Sign(msg)
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sigs[i] = stackitem.NewByteArray(sig)
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}
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return pubs, sigs, keyMap, nil
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}
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func subSlice(arr []stackitem.Item, indices []int) []stackitem.Item {
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if indices == nil {
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return arr
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}
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result := make([]stackitem.Item, len(indices))
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for i, j := range indices {
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result[i] = arr[j]
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}
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return result
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}
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func initCHECKMULTISIGVM(t *testing.T, n int, ik, is []int) *vm.VM {
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buf := make([]byte, 5)
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buf[0] = byte(opcode.SYSCALL)
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binary.LittleEndian.PutUint32(buf[1:], ecdsaCheckMultisigID)
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v := vm.New()
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ic := &interop.Context{Trigger: trigger.Verification}
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v.RegisterInteropGetter(GetInterop(ic))
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v.LoadScript(buf)
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msg := []byte("NEO - An Open Network For Smart Economy")
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pubs, sigs, _, err := initCHECKMULTISIG(msg, n)
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require.NoError(t, err)
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pubs = subSlice(pubs, ik)
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sigs = subSlice(sigs, is)
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v.Estack().PushVal(sigs)
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v.Estack().PushVal(pubs)
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v.Estack().PushVal(msg)
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return v
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}
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func testCHECKMULTISIGGood(t *testing.T, n int, is []int) {
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v := initCHECKMULTISIGVM(t, n, nil, is)
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require.NoError(t, v.Run())
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assert.Equal(t, 1, v.Estack().Len())
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assert.True(t, v.Estack().Pop().Bool())
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}
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func TestCHECKMULTISIGGood(t *testing.T) {
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t.Run("3_1", func(t *testing.T) { testCHECKMULTISIGGood(t, 3, []int{1}) })
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t.Run("2_2", func(t *testing.T) { testCHECKMULTISIGGood(t, 2, []int{0, 1}) })
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t.Run("3_3", func(t *testing.T) { testCHECKMULTISIGGood(t, 3, []int{0, 1, 2}) })
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t.Run("3_2", func(t *testing.T) { testCHECKMULTISIGGood(t, 3, []int{0, 2}) })
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t.Run("4_2", func(t *testing.T) { testCHECKMULTISIGGood(t, 4, []int{0, 2}) })
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t.Run("10_7", func(t *testing.T) { testCHECKMULTISIGGood(t, 10, []int{2, 3, 4, 5, 6, 8, 9}) })
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t.Run("12_9", func(t *testing.T) { testCHECKMULTISIGGood(t, 12, []int{0, 1, 4, 5, 6, 7, 8, 9}) })
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}
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func testCHECKMULTISIGBad(t *testing.T, n int, ik, is []int) {
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v := initCHECKMULTISIGVM(t, n, ik, is)
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require.NoError(t, v.Run())
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assert.Equal(t, 1, v.Estack().Len())
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assert.False(t, v.Estack().Pop().Bool())
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}
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func TestCHECKMULTISIGBad(t *testing.T) {
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t.Run("1_1 wrong signature", func(t *testing.T) { testCHECKMULTISIGBad(t, 2, []int{0}, []int{1}) })
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t.Run("3_2 wrong order", func(t *testing.T) { testCHECKMULTISIGBad(t, 3, []int{0, 2}, []int{2, 0}) })
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t.Run("3_2 duplicate sig", func(t *testing.T) { testCHECKMULTISIGBad(t, 3, nil, []int{0, 0}) })
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}
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