public bool IsFrom(PubKey pubKey)
{
var template = new PayToPubkeyHashTemplate();
var result = template.ExtractScriptSigParameters(ScriptSig);
return(result != null && result.PublicKey == pubKey);
}
public PubKey GetSourcePubKey()
{
var template = new PayToPubkeyHashTemplate();
var result = template.ExtractScriptSigParameters(this);
return(result == null ? null : result.PublicKey);
}
public KeyId GetDestination()
{
var template = FindTemplate();
var payToPubKeyHash = template as PayToPubkeyHashTemplate;
if (payToPubKeyHash != null)
{
return(payToPubKeyHash.ExtractScriptPubKeyParameters(this));
}
var payToPubKey = template as PayToPubkeyTemplate;
if (payToPubKey != null)
{
var result = new PayToPubkeyHashTemplate().ExtractScriptPubKeyParameters(this);
if (result == null)
{
var pub = new PayToPubkeyTemplate().ExtractScriptPubKeyParameters(this);
if (pub != null)
{
return(pub.ID);
}
}
}
return(null);
}
public BitcoinScriptAddress GetScriptAddress()
{
if (this is BitcoinScriptAddress)
{
return((BitcoinScriptAddress)this);
}
var redeem = new PayToPubkeyHashTemplate().GenerateScriptPubKey(this);
return(new BitcoinScriptAddress(redeem.ID, Network));
}
public StealthPayment(int sigCount, PubKey[] spendPubKeys, Key privateKey, PubKey publicKey, StealthMetadata metadata)
{
Metadata = metadata;
if(sigCount == 1 && spendPubKeys.Length == 1)
{
var template = new PayToPubkeyHashTemplate();
SpendableScript = template.GenerateScriptPubKey(spendPubKeys[0].Uncover(privateKey, publicKey).ID);
}
else
{
var template = new PayToMultiSigTemplate();
SpendableScript = template.GenerateScriptPubKey(sigCount, spendPubKeys.Select(p => p.Uncover(privateKey, publicKey)).ToArray());
}
ParseSpendable();
}
public StealthPayment(int sigCount, PubKey[] spendPubKeys, Key privateKey, PubKey publicKey, StealthMetadata metadata)
{
Metadata = metadata;
if (sigCount == 1 && spendPubKeys.Length == 1)
{
var template = new PayToPubkeyHashTemplate();
SpendableScript = template.GenerateScriptPubKey(spendPubKeys[0].Uncover(privateKey, publicKey).ID);
}
else
{
var template = new PayToMultiSigTemplate();
SpendableScript = template.GenerateScriptPubKey(sigCount, spendPubKeys.Select(p => p.Uncover(privateKey, publicKey)).ToArray());
}
ParseSpendable();
}
public bool SignedByMe(Transaction tx)
{
for (int i = 0; i < tx.Inputs.Count; i++)
{
var vin = tx.Inputs[i];
var key = GetKey(vin.ScriptSig.GetSourcePubKey());
if (key == null)
{
return(false);
}
var pubkeyScript = new PayToPubkeyHashTemplate().GenerateScriptPubKey(key.PubKey);
var eval = new ScriptEvaluationContext();
eval.SigHash = SigHash.All;
if (!eval.VerifyScript(vin.ScriptSig, pubkeyScript, tx, i))
{
return(false);
}
}
return(true);
}
private void ParseSpendable()
{
List <KeyId> pubkeys = new List <KeyId>();
var payToHash = new PayToPubkeyHashTemplate();
var keyId = payToHash.ExtractScriptPubKeyParameters(SpendableScript);
if (keyId != null)
{
StealthKeys = new StealthSpendKey[] { new StealthSpendKey(keyId, this) };
}
else
{
var payToMultiSig = new PayToMultiSigTemplate();
var para = payToMultiSig.ExtractScriptPubKeyParameters(SpendableScript);
if (para == null)
{
throw new ArgumentException("Invalid stealth spendable output script", "spendable");
}
StealthKeys = para.PubKeys.Select(k => new StealthSpendKey(k.ID, this)).ToArray();
}
}
public PubKey GetSourcePubKey()
{
var template = new PayToPubkeyHashTemplate();
var result = template.ExtractScriptSigParameters(this);
return result == null ? null : result.PublicKey;
}
public bool SignedByMe(Transaction tx)
{
for(int i = 0 ; i < tx.Inputs.Count ; i++)
{
var vin = tx.Inputs[i];
var key = GetKey(vin.ScriptSig.GetSourcePubKey());
if(key == null)
return false;
var pubkeyScript = new PayToPubkeyHashTemplate().GenerateScriptPubKey(key.PubKey);
var eval = new ScriptEvaluationContext();
eval.SigHash = SigHash.All;
if(!eval.VerifyScript(vin.ScriptSig, pubkeyScript, tx, i))
return false;
}
return true;
}
public void SetDestination(BitcoinAddress address)
{
ScriptPubKey = new PayToPubkeyHashTemplate().GenerateScriptPubKey(address);
}
private void SetDestination(KeyId keyId)
{
ScriptPubKey = new PayToPubkeyHashTemplate().GenerateScriptPubKey(keyId);
}
public bool IsFrom(PubKey pubKey)
{
var template = new PayToPubkeyHashTemplate();
var result = template.ExtractScriptSigParameters(ScriptSig);
return result != null && result.PublicKey == pubKey;
}
public void SetDestination(BitcoinAddress address)
{
ScriptPubKey = new PayToPubkeyHashTemplate().GenerateScriptPubKey(address);
}
private void SetDestination(KeyId keyId)
{
ScriptPubKey = new PayToPubkeyHashTemplate().GenerateScriptPubKey(keyId);
}
private void ParseSpendable()
{
List<KeyId> pubkeys = new List<KeyId>();
var payToHash = new PayToPubkeyHashTemplate();
var keyId = payToHash.ExtractScriptPubKeyParameters(SpendableScript);
if(keyId != null)
{
StealthKeys = new StealthSpendKey[] { new StealthSpendKey(keyId, this) };
}
else
{
var payToMultiSig = new PayToMultiSigTemplate();
var para = payToMultiSig.ExtractScriptPubKeyParameters(SpendableScript);
if(para == null)
throw new ArgumentException("Invalid stealth spendable output script", "spendable");
StealthKeys = para.PubKeys.Select(k => new StealthSpendKey(k.ID, this)).ToArray();
}
}
public KeyId GetDestination()
{
var template = FindTemplate();
var payToPubKeyHash = template as PayToPubkeyHashTemplate;
if(payToPubKeyHash != null)
{
return payToPubKeyHash.ExtractScriptPubKeyParameters(this);
}
var payToPubKey = template as PayToPubkeyTemplate;
if(payToPubKey != null)
{
var result = new PayToPubkeyHashTemplate().ExtractScriptPubKeyParameters(this);
if(result == null)
{
var pub = new PayToPubkeyTemplate().ExtractScriptPubKeyParameters(this);
if(pub != null)
return pub.ID;
}
}
return null;
}
