public void TestP2SH_P2PKH()
{
//Create p2pkh
CryptoRSA rsa = new CryptoRSA(key, true);
Interpreter.Initialize();
//Create address
byte[] pubkeyhash;
using (var rid = RIPEMD160.Create())
using (var sha = SHA256.Create())
pubkeyhash = rid.ComputeHash(sha.ComputeHash(key.publicKey));
LockingScript ls = new LockingScript(BASE58.Encode(pubkeyhash));
UnlockingScript us = new UnlockingScript(rsa.Sign(transaction.Hash()), key.publicKey);
//Create p2sh and insert p2pkh in it
LockingScript ls1 = new LockingScript(ls);
UnlockingScript us1 = new UnlockingScript(ls, us);
us1.InsertScript(ls1);
Assert.AreEqual(EXECUTION_RESULT.SUCCESS, us1.Run(transaction), "Execution of P2SH script failed");
}
/// <summary>
/// This will initialize the script as an P2PKH-locking script (Pay To Private Key Hash)
/// </summary>
/// <param name="address">The hashed and BASE58 encoded address</param>
public LockingScript(string address) : base(SCRIPTTYPE.LOCK_P2PKH)
{
if (address.Length < 20)
{
throw new ArgumentException("Address is invalid: too short");
}
if (address.Length > 255)
{
throw new ArgumentException("Address is invalid: too big");
}
byte[] addressHash = BASE58.Decode(address);
if (addressHash.Length != 20)
{
throw new ArgumentException("Invalid address. Address byte[] size must be 20 (HASH160)");
}
this.Add(OPCODE.DUP); //OPCODE = Duplicate the original public key, first instruction
this.Add(OPCODE.HASH160); //OPCODE = Hash public key
this.Add(OPCODE.PUBKEY_HASH);
this.AddRange(addressHash); //Hashed publicKey
this.Add(OPCODE.EQ_VERIFY); //OPCODE = Check if equal: address and hashed public key
this.Add(OPCODE.CHECKSIG); //Validate signature with the provided public key
}
