bd4e64d1d4
This is mostly a backport of some of the same modifications made in Decred along with a few additional things cleaned up. In particular, this updates the code to make use of the new chainhash package. Also, since this required API changes anyways and the hash algorithm is no longer tied specifically to SHA, all other functions throughout the code base which had "Sha" in their name have been changed to Hash so they are not incorrectly implying the hash algorithm. The following is an overview of the changes: - Remove the wire.ShaHash type - Update all references to wire.ShaHash to the new chainhash.Hash type - Rename the following functions and update all references: - wire.BlockHeader.BlockSha -> BlockHash - wire.MsgBlock.BlockSha -> BlockHash - wire.MsgBlock.TxShas -> TxHashes - wire.MsgTx.TxSha -> TxHash - blockchain.ShaHashToBig -> HashToBig - peer.ShaFunc -> peer.HashFunc - Rename all variables that included sha in their name to include hash instead - Update for function name changes in other dependent packages such as btcutil - Update copyright dates on all modified files - Update glide.lock file to use the required version of btcutil
455 lines
11 KiB
Go
455 lines
11 KiB
Go
// Copyright (c) 2013-2016 The btcsuite developers
|
|
// Use of this source code is governed by an ISC
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package txscript_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/btcsuite/btcd/chaincfg/chainhash"
|
|
"github.com/btcsuite/btcd/txscript"
|
|
"github.com/btcsuite/btcd/wire"
|
|
)
|
|
|
|
// TestBadPC sets the pc to a deliberately bad result then confirms that Step()
|
|
// and Disasm fail correctly.
|
|
func TestBadPC(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
type pcTest struct {
|
|
script, off int
|
|
}
|
|
pcTests := []pcTest{
|
|
{
|
|
script: 2,
|
|
off: 0,
|
|
},
|
|
{
|
|
script: 0,
|
|
off: 2,
|
|
},
|
|
}
|
|
// tx with almost empty scripts.
|
|
tx := &wire.MsgTx{
|
|
Version: 1,
|
|
TxIn: []*wire.TxIn{
|
|
{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: chainhash.Hash([32]byte{
|
|
0xc9, 0x97, 0xa5, 0xe5,
|
|
0x6e, 0x10, 0x41, 0x02,
|
|
0xfa, 0x20, 0x9c, 0x6a,
|
|
0x85, 0x2d, 0xd9, 0x06,
|
|
0x60, 0xa2, 0x0b, 0x2d,
|
|
0x9c, 0x35, 0x24, 0x23,
|
|
0xed, 0xce, 0x25, 0x85,
|
|
0x7f, 0xcd, 0x37, 0x04,
|
|
}),
|
|
Index: 0,
|
|
},
|
|
SignatureScript: []uint8{txscript.OP_NOP},
|
|
Sequence: 4294967295,
|
|
},
|
|
},
|
|
TxOut: []*wire.TxOut{
|
|
{
|
|
Value: 1000000000,
|
|
PkScript: nil,
|
|
},
|
|
},
|
|
LockTime: 0,
|
|
}
|
|
pkScript := []byte{txscript.OP_NOP}
|
|
|
|
for _, test := range pcTests {
|
|
vm, err := txscript.NewEngine(pkScript, tx, 0, 0, nil)
|
|
if err != nil {
|
|
t.Errorf("Failed to create script: %v", err)
|
|
}
|
|
|
|
// set to after all scripts
|
|
vm.TstSetPC(test.script, test.off)
|
|
|
|
_, err = vm.Step()
|
|
if err == nil {
|
|
t.Errorf("Step with invalid pc (%v) succeeds!", test)
|
|
continue
|
|
}
|
|
|
|
_, err = vm.DisasmPC()
|
|
if err == nil {
|
|
t.Errorf("DisasmPC with invalid pc (%v) succeeds!",
|
|
test)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestCheckErrorCondition tests the execute early test in CheckErrorCondition()
|
|
// since most code paths are tested elsewhere.
|
|
func TestCheckErrorCondition(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// tx with almost empty scripts.
|
|
tx := &wire.MsgTx{
|
|
Version: 1,
|
|
TxIn: []*wire.TxIn{
|
|
{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: chainhash.Hash([32]byte{
|
|
0xc9, 0x97, 0xa5, 0xe5,
|
|
0x6e, 0x10, 0x41, 0x02,
|
|
0xfa, 0x20, 0x9c, 0x6a,
|
|
0x85, 0x2d, 0xd9, 0x06,
|
|
0x60, 0xa2, 0x0b, 0x2d,
|
|
0x9c, 0x35, 0x24, 0x23,
|
|
0xed, 0xce, 0x25, 0x85,
|
|
0x7f, 0xcd, 0x37, 0x04,
|
|
}),
|
|
Index: 0,
|
|
},
|
|
SignatureScript: []uint8{},
|
|
Sequence: 4294967295,
|
|
},
|
|
},
|
|
TxOut: []*wire.TxOut{
|
|
{
|
|
Value: 1000000000,
|
|
PkScript: nil,
|
|
},
|
|
},
|
|
LockTime: 0,
|
|
}
|
|
pkScript := []byte{
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_NOP,
|
|
txscript.OP_TRUE,
|
|
}
|
|
|
|
vm, err := txscript.NewEngine(pkScript, tx, 0, 0, nil)
|
|
if err != nil {
|
|
t.Errorf("failed to create script: %v", err)
|
|
}
|
|
|
|
for i := 0; i < len(pkScript)-1; i++ {
|
|
done, err := vm.Step()
|
|
if err != nil {
|
|
t.Errorf("failed to step %dth time: %v", i, err)
|
|
return
|
|
}
|
|
if done {
|
|
t.Errorf("finshed early on %dth time", i)
|
|
return
|
|
}
|
|
|
|
err = vm.CheckErrorCondition(false)
|
|
if err != txscript.ErrStackScriptUnfinished {
|
|
t.Errorf("got unexepected error %v on %dth iteration",
|
|
err, i)
|
|
return
|
|
}
|
|
}
|
|
done, err := vm.Step()
|
|
if err != nil {
|
|
t.Errorf("final step failed %v", err)
|
|
return
|
|
}
|
|
if !done {
|
|
t.Errorf("final step isn't done!")
|
|
return
|
|
}
|
|
|
|
err = vm.CheckErrorCondition(false)
|
|
if err != nil {
|
|
t.Errorf("unexpected error %v on final check", err)
|
|
}
|
|
}
|
|
|
|
// TestInvalidFlagCombinations ensures the script engine returns the expected
|
|
// error when disallowed flag combinations are specified.
|
|
func TestInvalidFlagCombinations(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
tests := []txscript.ScriptFlags{
|
|
txscript.ScriptVerifyCleanStack,
|
|
}
|
|
|
|
// tx with almost empty scripts.
|
|
tx := &wire.MsgTx{
|
|
Version: 1,
|
|
TxIn: []*wire.TxIn{
|
|
{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: chainhash.Hash([32]byte{
|
|
0xc9, 0x97, 0xa5, 0xe5,
|
|
0x6e, 0x10, 0x41, 0x02,
|
|
0xfa, 0x20, 0x9c, 0x6a,
|
|
0x85, 0x2d, 0xd9, 0x06,
|
|
0x60, 0xa2, 0x0b, 0x2d,
|
|
0x9c, 0x35, 0x24, 0x23,
|
|
0xed, 0xce, 0x25, 0x85,
|
|
0x7f, 0xcd, 0x37, 0x04,
|
|
}),
|
|
Index: 0,
|
|
},
|
|
SignatureScript: []uint8{txscript.OP_NOP},
|
|
Sequence: 4294967295,
|
|
},
|
|
},
|
|
TxOut: []*wire.TxOut{
|
|
{
|
|
Value: 1000000000,
|
|
PkScript: nil,
|
|
},
|
|
},
|
|
LockTime: 0,
|
|
}
|
|
pkScript := []byte{txscript.OP_NOP}
|
|
|
|
for i, test := range tests {
|
|
_, err := txscript.NewEngine(pkScript, tx, 0, test, nil)
|
|
if err != txscript.ErrInvalidFlags {
|
|
t.Fatalf("TestInvalidFlagCombinations #%d unexpected "+
|
|
"error: %v", i, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestCheckPubKeyEncoding ensures the internal checkPubKeyEncoding function
|
|
// works as expected.
|
|
func TestCheckPubKeyEncoding(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
tests := []struct {
|
|
name string
|
|
key []byte
|
|
isValid bool
|
|
}{
|
|
{
|
|
name: "uncompressed ok",
|
|
key: decodeHex("0411db93e1dcdb8a016b49840f8c53bc1eb68" +
|
|
"a382e97b1482ecad7b148a6909a5cb2e0eaddfb84ccf" +
|
|
"9744464f82e160bfa9b8b64f9d4c03f999b8643f656b" +
|
|
"412a3"),
|
|
isValid: true,
|
|
},
|
|
{
|
|
name: "compressed ok",
|
|
key: decodeHex("02ce0b14fb842b1ba549fdd675c98075f12e9" +
|
|
"c510f8ef52bd021a9a1f4809d3b4d"),
|
|
isValid: true,
|
|
},
|
|
{
|
|
name: "compressed ok",
|
|
key: decodeHex("032689c7c2dab13309fb143e0e8fe39634252" +
|
|
"1887e976690b6b47f5b2a4b7d448e"),
|
|
isValid: true,
|
|
},
|
|
{
|
|
name: "hybrid",
|
|
key: decodeHex("0679be667ef9dcbbac55a06295ce870b07029" +
|
|
"bfcdb2dce28d959f2815b16f81798483ada7726a3c46" +
|
|
"55da4fbfc0e1108a8fd17b448a68554199c47d08ffb1" +
|
|
"0d4b8"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "empty",
|
|
key: nil,
|
|
isValid: false,
|
|
},
|
|
}
|
|
|
|
flags := txscript.ScriptVerifyStrictEncoding
|
|
for _, test := range tests {
|
|
err := txscript.TstCheckPubKeyEncoding(test.key, flags)
|
|
if err != nil && test.isValid {
|
|
t.Errorf("checkSignatureEncoding test '%s' failed "+
|
|
"when it should have succeeded: %v", test.name,
|
|
err)
|
|
} else if err == nil && !test.isValid {
|
|
t.Errorf("checkSignatureEncooding test '%s' succeeded "+
|
|
"when it should have failed", test.name)
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// TestCheckSignatureEncoding ensures the internal checkSignatureEncoding
|
|
// function works as expected.
|
|
func TestCheckSignatureEncoding(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
tests := []struct {
|
|
name string
|
|
sig []byte
|
|
isValid bool
|
|
}{
|
|
{
|
|
name: "valid signature",
|
|
sig: decodeHex("304402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: true,
|
|
},
|
|
{
|
|
name: "empty.",
|
|
sig: nil,
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "bad magic",
|
|
sig: decodeHex("314402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "bad 1st int marker magic",
|
|
sig: decodeHex("304403204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "bad 2nd int marker",
|
|
sig: decodeHex("304402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41032018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "short len",
|
|
sig: decodeHex("304302204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "long len",
|
|
sig: decodeHex("304502204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "long X",
|
|
sig: decodeHex("304402424e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "long Y",
|
|
sig: decodeHex("304402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022118152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "short Y",
|
|
sig: decodeHex("304402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41021918152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "trailing crap",
|
|
sig: decodeHex("304402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d0901"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "X == N ",
|
|
sig: decodeHex("30440220fffffffffffffffffffffffffffff" +
|
|
"ffebaaedce6af48a03bbfd25e8cd0364141022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "X == N ",
|
|
sig: decodeHex("30440220fffffffffffffffffffffffffffff" +
|
|
"ffebaaedce6af48a03bbfd25e8cd0364142022018152" +
|
|
"2ec8eca07de4860a4acdd12909d831cc56cbbac46220" +
|
|
"82221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "Y == N",
|
|
sig: decodeHex("304402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd410220fffff" +
|
|
"ffffffffffffffffffffffffffebaaedce6af48a03bb" +
|
|
"fd25e8cd0364141"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "Y > N",
|
|
sig: decodeHex("304402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd410220fffff" +
|
|
"ffffffffffffffffffffffffffebaaedce6af48a03bb" +
|
|
"fd25e8cd0364142"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "0 len X",
|
|
sig: decodeHex("302402000220181522ec8eca07de4860a4acd" +
|
|
"d12909d831cc56cbbac4622082221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "0 len Y",
|
|
sig: decodeHex("302402204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd410200"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "extra R padding",
|
|
sig: decodeHex("30450221004e45e16932b8af514961a1d3a1a" +
|
|
"25fdf3f4f7732e9d624c6c61548ab5fb8cd410220181" +
|
|
"522ec8eca07de4860a4acdd12909d831cc56cbbac462" +
|
|
"2082221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
{
|
|
name: "extra S padding",
|
|
sig: decodeHex("304502204e45e16932b8af514961a1d3a1a25" +
|
|
"fdf3f4f7732e9d624c6c61548ab5fb8cd41022100181" +
|
|
"522ec8eca07de4860a4acdd12909d831cc56cbbac462" +
|
|
"2082221a8768d1d09"),
|
|
isValid: false,
|
|
},
|
|
}
|
|
|
|
flags := txscript.ScriptVerifyStrictEncoding
|
|
for _, test := range tests {
|
|
err := txscript.TstCheckSignatureEncoding(test.sig, flags)
|
|
if err != nil && test.isValid {
|
|
t.Errorf("checkSignatureEncoding test '%s' failed "+
|
|
"when it should have succeeded: %v", test.name,
|
|
err)
|
|
} else if err == nil && !test.isValid {
|
|
t.Errorf("checkSignatureEncooding test '%s' succeeded "+
|
|
"when it should have failed", test.name)
|
|
}
|
|
}
|
|
}
|