public void GetSigOpCount()
{
// Test CScript::GetSigOpCount()
Script s1 = new Script();
Assert.Equal(s1.GetSigOpCount(false), 0U);
Assert.Equal(s1.GetSigOpCount(true), 0U);
uint160 dummy = new uint160(0);
s1 = s1 + OpcodeType.OP_1 + dummy.ToBytes() + dummy.ToBytes() + OpcodeType.OP_2 + OpcodeType.OP_CHECKMULTISIG;
Assert.Equal(s1.GetSigOpCount(true), 2U);
s1 = s1 + OpcodeType.OP_IF + OpcodeType.OP_CHECKSIG + OpcodeType.OP_ENDIF;
Assert.Equal(s1.GetSigOpCount(true), 3U);
Assert.Equal(s1.GetSigOpCount(false), 21U);
var payToScript = new PayToScriptHashTemplate();
Script p2sh = payToScript.GenerateScriptPubKey(s1);
Script scriptSig = payToScript.GenerateScriptSig(new[] { (Op)OpcodeType.OP_0 }, s1);
Assert.Equal(p2sh.GetSigOpCount(scriptSig), 3U);
var multiSig = new PayToMultiSigTemplate();
PubKey[] keys = Enumerable.Range(0, 3).Select(_ => new Key(true).PubKey).ToArray();
Script s2 = multiSig.GenerateScriptPubKey(1, keys);
Assert.Equal(s2.GetSigOpCount(true), 3U);
Assert.Equal(s2.GetSigOpCount(false), 20U);
p2sh = payToScript.GenerateScriptPubKey(s2);
Assert.Equal(p2sh.GetSigOpCount(true), 0U);
Assert.Equal(p2sh.GetSigOpCount(false), 0U);
Script scriptSig2 = new Script();
scriptSig2 = scriptSig2 + OpcodeType.OP_1 + dummy.ToBytes() + dummy.ToBytes() + s2.ToRawScript();
Assert.Equal(p2sh.GetSigOpCount(scriptSig2), 3U);
}
private uint GetSigOpCount(Script script, Network network, Script scriptSig)
{
if (!script.IsScriptType(ScriptType.P2SH))
{
return(script.GetSigOpCount(true));
}
// This is a pay-to-script-hash scriptPubKey;
// get the last item that the scriptSig
// pushes onto the stack:
bool validSig = new PayToScriptHashTemplate().CheckScriptSig(network, scriptSig, script);
return(!validSig ? 0 : this.GetSigOpCount(new Script(scriptSig.ToOps().Last().PushData), true, network));
// ... and return its opcount:
}
public uint GetSigOpCount(Script scriptSig)
{
if (!IsPayToScriptHash)
{
return(GetSigOpCount(true));
}
// This is a pay-to-script-hash scriptPubKey;
// get the last item that the scriptSig
// pushes onto the stack:
var validSig = new PayToScriptHashTemplate().CheckScriptSig(scriptSig, this);
return(!validSig ? 0 : new Script(scriptSig.ToOps().Last().PushData).GetSigOpCount(true));
// ... and return its opcount:
}
public void CanCompressScript()
{
var payToHashTemplate = new PayToPubkeyHashTemplate();
var payToScriptTemplate = new PayToScriptHashTemplate();
var payToPubKeyTemplate = new PayToPubkeyTemplate();
var key = new Key(true);
//Pay to pubkey hash (encoded as 21 bytes)
var script = payToHashTemplate.GenerateScriptPubKey(key.PubKey.ID);
AssertCompressed(script, 21);
script = payToHashTemplate.GenerateScriptPubKey(key.PubKey.Decompress().ID);
AssertCompressed(script, 21);
//Pay to script hash (encoded as 21 bytes)
script = payToScriptTemplate.GenerateScriptPubKey(script);
AssertCompressed(script, 21);
//Pay to pubkey starting with 0x02, 0x03 or 0x04 (encoded as 33 bytes)
script = payToPubKeyTemplate.GenerateScriptPubKey(key.PubKey);
script = AssertCompressed(script, 33);
var readenKey = payToPubKeyTemplate.ExtractScriptPubKeyParameters(script);
AssertEx.CollectionEquals(readenKey.ToBytes(), key.PubKey.ToBytes());
script = payToPubKeyTemplate.GenerateScriptPubKey(key.PubKey.Decompress());
script = AssertCompressed(script, 33);
readenKey = payToPubKeyTemplate.ExtractScriptPubKeyParameters(script);
AssertEx.CollectionEquals(readenKey.ToBytes(), key.PubKey.Decompress().ToBytes());
//Other scripts up to 121 bytes require 1 byte + script length.
script = new Script(Enumerable.Range(0, 60).Select(_ => (Op)OpcodeType.OP_RETURN).ToArray());
AssertCompressed(script, 61);
script = new Script(Enumerable.Range(0, 120).Select(_ => (Op)OpcodeType.OP_RETURN).ToArray());
AssertCompressed(script, 121);
//Above that, scripts up to 16505 bytes require 2 bytes + script length.
script = new Script(Enumerable.Range(0, 122).Select(_ => (Op)OpcodeType.OP_RETURN).ToArray());
AssertCompressed(script, 124);
}
public void CanParseAndGeneratePayToScript()
{
var template = new PayToScriptHashTemplate();
var redeem = "1 0364bd4b02a752798342ed91c681a48793bb1c0853cbcd0b978c55e53485b8e27c 0364bd4b02a752798342ed91c681a48793bb1c0853cbcd0b978c55e53485b8e27d 2 OP_CHECKMULTISIG";
var scriptPubkey = "OP_HASH160 b5b88dd9befc9236915fcdbb7fd50052df50c855 OP_EQUAL";
var scriptSig = "3044022064f45a382a15d3eb5e7fe72076eec4ef0f56fde1adfd710866e729b9e5f3383d02202720a895914c69ab49359087364f06d337a2138305fbc19e20d18da78415ea9301 51210364bd4b02a752798342ed91c681a48793bb1c0853cbcd0b978c55e53485b8e27c210364bd4b02a752798342ed91c681a48793bb1c0853cbcd0b978c55e53485b8e27d52ae";
var pubParams = template.ExtractScriptPubKeyParameters(new Script(scriptPubkey));
Assert.Equal("b5b88dd9befc9236915fcdbb7fd50052df50c855", pubParams.ToString());
Assert.Equal(scriptPubkey, template.GenerateScriptPubKey(pubParams).ToString());
var sigParams = template.ExtractScriptSigParameters(new Script(scriptSig));
Assert.Equal("3044022064f45a382a15d3eb5e7fe72076eec4ef0f56fde1adfd710866e729b9e5f3383d02202720a895914c69ab49359087364f06d337a2138305fbc19e20d18da78415ea9301", Encoders.Hex.EncodeData(sigParams.Signatures[0].ToBytes()));
Assert.Equal(redeem, sigParams.RedeemScript.ToString());
Assert.Equal(scriptSig, template.GenerateScriptSig(sigParams.Signatures, sigParams.RedeemScript).ToString());
}
public void GetSigOpCount()
{
// Test CScript::GetSigOpCount()
Script s1 = new Script();
Assert.Equal(s1.GetSigOpCount(false), 0U);
Assert.Equal(s1.GetSigOpCount(true), 0U);
uint160 dummy = new uint160(0);
s1 = s1 + OpcodeType.OP_1 + dummy.ToBytes() + dummy.ToBytes() + OpcodeType.OP_2 + OpcodeType.OP_CHECKMULTISIG;
Assert.Equal(s1.GetSigOpCount(true), 2U);
s1 = s1 + OpcodeType.OP_IF + OpcodeType.OP_CHECKSIG + OpcodeType.OP_ENDIF;
Assert.Equal(s1.GetSigOpCount(true), 3U);
Assert.Equal(s1.GetSigOpCount(false), 21U);
var payToScript = new PayToScriptHashTemplate();
Script p2sh = payToScript.GenerateScriptPubKey(s1);
Script scriptSig = payToScript.GenerateScriptSig(new[] { (Op)OpcodeType.OP_0 }, s1);
Assert.Equal(p2sh.GetSigOpCount(scriptSig), 3U);
var multiSig = new PayToMultiSigTemplate();
PubKey[] keys = Enumerable.Range(0, 3).Select(_ => new Key(true).PubKey).ToArray();
Script s2 = multiSig.GenerateScriptPubKey(1, keys);
Assert.Equal(s2.GetSigOpCount(true), 3U);
Assert.Equal(s2.GetSigOpCount(false), 20U);
p2sh = payToScript.GenerateScriptPubKey(s2);
Assert.Equal(p2sh.GetSigOpCount(true), 0U);
Assert.Equal(p2sh.GetSigOpCount(false), 0U);
Script scriptSig2 = new Script();
scriptSig2 = scriptSig2 + OpcodeType.OP_1 + dummy.ToBytes() + dummy.ToBytes() + s2.ToRawScript();
Assert.Equal(p2sh.GetSigOpCount(scriptSig2), 3U);
}
public void CanCompressScript()
{
var payToHashTemplate = new PayToPubkeyHashTemplate();
var payToScriptTemplate = new PayToScriptHashTemplate();
var payToPubKeyTemplate = new PayToPubkeyTemplate();
var key = new Key(true);
//Pay to pubkey hash (encoded as 21 bytes)
var script = payToHashTemplate.GenerateScriptPubKey(key.PubKey.ID);
AssertCompressed(script, 21);
script = payToHashTemplate.GenerateScriptPubKey(key.PubKey.Decompress().ID);
AssertCompressed(script, 21);
//Pay to script hash (encoded as 21 bytes)
script = payToScriptTemplate.GenerateScriptPubKey(script);
AssertCompressed(script, 21);
//Pay to pubkey starting with 0x02, 0x03 or 0x04 (encoded as 33 bytes)
script = payToPubKeyTemplate.GenerateScriptPubKey(key.PubKey);
script = AssertCompressed(script, 33);
var readenKey = payToPubKeyTemplate.ExtractScriptPubKeyParameters(script);
AssertEx.CollectionEquals(readenKey.ToBytes(), key.PubKey.ToBytes());
script = payToPubKeyTemplate.GenerateScriptPubKey(key.PubKey.Decompress());
script = AssertCompressed(script, 33);
readenKey = payToPubKeyTemplate.ExtractScriptPubKeyParameters(script);
AssertEx.CollectionEquals(readenKey.ToBytes(), key.PubKey.Decompress().ToBytes());
//Other scripts up to 121 bytes require 1 byte + script length.
script = new Script(Enumerable.Range(0, 60).Select(_ => (Op)OpcodeType.OP_RETURN).ToArray());
AssertCompressed(script, 61);
script = new Script(Enumerable.Range(0, 120).Select(_ => (Op)OpcodeType.OP_RETURN).ToArray());
AssertCompressed(script, 121);
//Above that, scripts up to 16505 bytes require 2 bytes + script length.
script = new Script(Enumerable.Range(0, 122).Select(_ => (Op)OpcodeType.OP_RETURN).ToArray());
AssertCompressed(script, 124);
}