Rename script.h/.cpp to scriptutils.h/.cpp (plus remove duplicated includes)

1 files changed, 0 insertions, 2079 deletions

diff --git a/src/script.cpp b/src/script.cpp
deleted file mode 100644
index f3d423a424..0000000000
--- a/src/script.cpp
+++ /dev/null
@@ -1,2079 +0,0 @@
-// Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#include "script.h"
-
-#include "crypto/ripemd160.h"
-#include "crypto/sha1.h"
-#include "crypto/sha2.h"
-#include "core.h"
-#include "hash.h"
-#include "key.h"
-#include "keystore.h"
-#include "random.h"
-#include "sync.h"
-#include "uint256.h"
-#include "util.h"
-
-#include <boost/foreach.hpp>
-#include <boost/thread.hpp>
-#include <boost/tuple/tuple.hpp>
-#include <boost/tuple/tuple_comparison.hpp>
-
-using namespace std;
-using namespace boost;
-
-typedef vector<unsigned char> valtype;
-static const valtype vchFalse(0);
-static const valtype vchZero(0);
-static const valtype vchTrue(1, 1);
-static const CScriptNum bnZero(0);
-static const CScriptNum bnOne(1);
-static const CScriptNum bnFalse(0);
-static const CScriptNum bnTrue(1);
-
-bool CheckSig(vector<unsigned char> vchSig, const vector<unsigned char> &vchPubKey, const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType, int flags);
-
-bool CastToBool(const valtype& vch)
-{
-    for (unsigned int i = 0; i < vch.size(); i++)
-    {
-        if (vch[i] != 0)
-        {
-            // Can be negative zero
-            if (i == vch.size()-1 && vch[i] == 0x80)
-                return false;
-            return true;
-        }
-    }
-    return false;
-}
-
-
-
-//
-// Script is a stack machine (like Forth) that evaluates a predicate
-// returning a bool indicating valid or not.  There are no loops.
-//
-#define stacktop(i)  (stack.at(stack.size()+(i)))
-#define altstacktop(i)  (altstack.at(altstack.size()+(i)))
-static inline void popstack(vector<valtype>& stack)
-{
-    if (stack.empty())
-        throw runtime_error("popstack() : stack empty");
-    stack.pop_back();
-}
-
-
-const char* GetTxnOutputType(txnouttype t)
-{
-    switch (t)
-    {
-    case TX_NONSTANDARD: return "nonstandard";
-    case TX_PUBKEY: return "pubkey";
-    case TX_PUBKEYHASH: return "pubkeyhash";
-    case TX_SCRIPTHASH: return "scripthash";
-    case TX_MULTISIG: return "multisig";
-    case TX_NULL_DATA: return "nulldata";
-    }
-    return NULL;
-}
-
-
-const char* GetOpName(opcodetype opcode)
-{
-    switch (opcode)
-    {
-    // push value
-    case OP_0                      : return "0";
-    case OP_PUSHDATA1              : return "OP_PUSHDATA1";
-    case OP_PUSHDATA2              : return "OP_PUSHDATA2";
-    case OP_PUSHDATA4              : return "OP_PUSHDATA4";
-    case OP_1NEGATE                : return "-1";
-    case OP_RESERVED               : return "OP_RESERVED";
-    case OP_1                      : return "1";
-    case OP_2                      : return "2";
-    case OP_3                      : return "3";
-    case OP_4                      : return "4";
-    case OP_5                      : return "5";
-    case OP_6                      : return "6";
-    case OP_7                      : return "7";
-    case OP_8                      : return "8";
-    case OP_9                      : return "9";
-    case OP_10                     : return "10";
-    case OP_11                     : return "11";
-    case OP_12                     : return "12";
-    case OP_13                     : return "13";
-    case OP_14                     : return "14";
-    case OP_15                     : return "15";
-    case OP_16                     : return "16";
-
-    // control
-    case OP_NOP                    : return "OP_NOP";
-    case OP_VER                    : return "OP_VER";
-    case OP_IF                     : return "OP_IF";
-    case OP_NOTIF                  : return "OP_NOTIF";
-    case OP_VERIF                  : return "OP_VERIF";
-    case OP_VERNOTIF               : return "OP_VERNOTIF";
-    case OP_ELSE                   : return "OP_ELSE";
-    case OP_ENDIF                  : return "OP_ENDIF";
-    case OP_VERIFY                 : return "OP_VERIFY";
-    case OP_RETURN                 : return "OP_RETURN";
-
-    // stack ops
-    case OP_TOALTSTACK             : return "OP_TOALTSTACK";
-    case OP_FROMALTSTACK           : return "OP_FROMALTSTACK";
-    case OP_2DROP                  : return "OP_2DROP";
-    case OP_2DUP                   : return "OP_2DUP";
-    case OP_3DUP                   : return "OP_3DUP";
-    case OP_2OVER                  : return "OP_2OVER";
-    case OP_2ROT                   : return "OP_2ROT";
-    case OP_2SWAP                  : return "OP_2SWAP";
-    case OP_IFDUP                  : return "OP_IFDUP";
-    case OP_DEPTH                  : return "OP_DEPTH";
-    case OP_DROP                   : return "OP_DROP";
-    case OP_DUP                    : return "OP_DUP";
-    case OP_NIP                    : return "OP_NIP";
-    case OP_OVER                   : return "OP_OVER";
-    case OP_PICK                   : return "OP_PICK";
-    case OP_ROLL                   : return "OP_ROLL";
-    case OP_ROT                    : return "OP_ROT";
-    case OP_SWAP                   : return "OP_SWAP";
-    case OP_TUCK                   : return "OP_TUCK";
-
-    // splice ops
-    case OP_CAT                    : return "OP_CAT";
-    case OP_SUBSTR                 : return "OP_SUBSTR";
-    case OP_LEFT                   : return "OP_LEFT";
-    case OP_RIGHT                  : return "OP_RIGHT";
-    case OP_SIZE                   : return "OP_SIZE";
-
-    // bit logic
-    case OP_INVERT                 : return "OP_INVERT";
-    case OP_AND                    : return "OP_AND";
-    case OP_OR                     : return "OP_OR";
-    case OP_XOR                    : return "OP_XOR";
-    case OP_EQUAL                  : return "OP_EQUAL";
-    case OP_EQUALVERIFY            : return "OP_EQUALVERIFY";
-    case OP_RESERVED1              : return "OP_RESERVED1";
-    case OP_RESERVED2              : return "OP_RESERVED2";
-
-    // numeric
-    case OP_1ADD                   : return "OP_1ADD";
-    case OP_1SUB                   : return "OP_1SUB";
-    case OP_2MUL                   : return "OP_2MUL";
-    case OP_2DIV                   : return "OP_2DIV";
-    case OP_NEGATE                 : return "OP_NEGATE";
-    case OP_ABS                    : return "OP_ABS";
-    case OP_NOT                    : return "OP_NOT";
-    case OP_0NOTEQUAL              : return "OP_0NOTEQUAL";
-    case OP_ADD                    : return "OP_ADD";
-    case OP_SUB                    : return "OP_SUB";
-    case OP_MUL                    : return "OP_MUL";
-    case OP_DIV                    : return "OP_DIV";
-    case OP_MOD                    : return "OP_MOD";
-    case OP_LSHIFT                 : return "OP_LSHIFT";
-    case OP_RSHIFT                 : return "OP_RSHIFT";
-    case OP_BOOLAND                : return "OP_BOOLAND";
-    case OP_BOOLOR                 : return "OP_BOOLOR";
-    case OP_NUMEQUAL               : return "OP_NUMEQUAL";
-    case OP_NUMEQUALVERIFY         : return "OP_NUMEQUALVERIFY";
-    case OP_NUMNOTEQUAL            : return "OP_NUMNOTEQUAL";
-    case OP_LESSTHAN               : return "OP_LESSTHAN";
-    case OP_GREATERTHAN            : return "OP_GREATERTHAN";
-    case OP_LESSTHANOREQUAL        : return "OP_LESSTHANOREQUAL";
-    case OP_GREATERTHANOREQUAL     : return "OP_GREATERTHANOREQUAL";
-    case OP_MIN                    : return "OP_MIN";
-    case OP_MAX                    : return "OP_MAX";
-    case OP_WITHIN                 : return "OP_WITHIN";
-
-    // crypto
-    case OP_RIPEMD160              : return "OP_RIPEMD160";
-    case OP_SHA1                   : return "OP_SHA1";
-    case OP_SHA256                 : return "OP_SHA256";
-    case OP_HASH160                : return "OP_HASH160";
-    case OP_HASH256                : return "OP_HASH256";
-    case OP_CODESEPARATOR          : return "OP_CODESEPARATOR";
-    case OP_CHECKSIG               : return "OP_CHECKSIG";
-    case OP_CHECKSIGVERIFY         : return "OP_CHECKSIGVERIFY";
-    case OP_CHECKMULTISIG          : return "OP_CHECKMULTISIG";
-    case OP_CHECKMULTISIGVERIFY    : return "OP_CHECKMULTISIGVERIFY";
-
-    // expanson
-    case OP_NOP1                   : return "OP_NOP1";
-    case OP_NOP2                   : return "OP_NOP2";
-    case OP_NOP3                   : return "OP_NOP3";
-    case OP_NOP4                   : return "OP_NOP4";
-    case OP_NOP5                   : return "OP_NOP5";
-    case OP_NOP6                   : return "OP_NOP6";
-    case OP_NOP7                   : return "OP_NOP7";
-    case OP_NOP8                   : return "OP_NOP8";
-    case OP_NOP9                   : return "OP_NOP9";
-    case OP_NOP10                  : return "OP_NOP10";
-
-    case OP_INVALIDOPCODE          : return "OP_INVALIDOPCODE";
-
-    // Note:
-    //  The template matching params OP_SMALLDATA/etc are defined in opcodetype enum
-    //  as kind of implementation hack, they are *NOT* real opcodes.  If found in real
-    //  Script, just let the default: case deal with them.
-
-    default:
-        return "OP_UNKNOWN";
-    }
-}
-
-bool IsCanonicalPubKey(const valtype &vchPubKey, unsigned int flags) {
-    if (!(flags & SCRIPT_VERIFY_STRICTENC))
-        return true;
-
-    if (vchPubKey.size() < 33)
-        return error("Non-canonical public key: too short");
-    if (vchPubKey[0] == 0x04) {
-        if (vchPubKey.size() != 65)
-            return error("Non-canonical public key: invalid length for uncompressed key");
-    } else if (vchPubKey[0] == 0x02 || vchPubKey[0] == 0x03) {
-        if (vchPubKey.size() != 33)
-            return error("Non-canonical public key: invalid length for compressed key");
-    } else {
-        return error("Non-canonical public key: neither compressed nor uncompressed");
-    }
-    return true;
-}
-
-bool IsCanonicalSignature(const valtype &vchSig, unsigned int flags) {
-    if (!(flags & SCRIPT_VERIFY_STRICTENC))
-        return true;
-
-    // See https://bitcointalk.org/index.php?topic=8392.msg127623#msg127623
-    // A canonical signature exists of: <30> <total len> <02> <len R> <R> <02> <len S> <S> <hashtype>
-    // Where R and S are not negative (their first byte has its highest bit not set), and not
-    // excessively padded (do not start with a 0 byte, unless an otherwise negative number follows,
-    // in which case a single 0 byte is necessary and even required).
-    if (vchSig.size() < 9)
-        return error("Non-canonical signature: too short");
-    if (vchSig.size() > 73)
-        return error("Non-canonical signature: too long");
-    unsigned char nHashType = vchSig[vchSig.size() - 1] & (~(SIGHASH_ANYONECANPAY));
-    if (nHashType < SIGHASH_ALL || nHashType > SIGHASH_SINGLE)
-        return error("Non-canonical signature: unknown hashtype byte");
-    if (vchSig[0] != 0x30)
-        return error("Non-canonical signature: wrong type");
-    if (vchSig[1] != vchSig.size()-3)
-        return error("Non-canonical signature: wrong length marker");
-    unsigned int nLenR = vchSig[3];
-    if (5 + nLenR >= vchSig.size())
-        return error("Non-canonical signature: S length misplaced");
-    unsigned int nLenS = vchSig[5+nLenR];
-    if ((unsigned long)(nLenR+nLenS+7) != vchSig.size())
-        return error("Non-canonical signature: R+S length mismatch");
-
-    const unsigned char *R = &vchSig[4];
-    if (R[-2] != 0x02)
-        return error("Non-canonical signature: R value type mismatch");
-    if (nLenR == 0)
-        return error("Non-canonical signature: R length is zero");
-    if (R[0] & 0x80)
-        return error("Non-canonical signature: R value negative");
-    if (nLenR > 1 && (R[0] == 0x00) && !(R[1] & 0x80))
-        return error("Non-canonical signature: R value excessively padded");
-
-    const unsigned char *S = &vchSig[6+nLenR];
-    if (S[-2] != 0x02)
-        return error("Non-canonical signature: S value type mismatch");
-    if (nLenS == 0)
-        return error("Non-canonical signature: S length is zero");
-    if (S[0] & 0x80)
-        return error("Non-canonical signature: S value negative");
-    if (nLenS > 1 && (S[0] == 0x00) && !(S[1] & 0x80))
-        return error("Non-canonical signature: S value excessively padded");
-
-    if (flags & SCRIPT_VERIFY_LOW_S) {
-        // If the S value is above the order of the curve divided by two, its
-        // complement modulo the order could have been used instead, which is
-        // one byte shorter when encoded correctly.
-        if (!CKey::CheckSignatureElement(S, nLenS, true))
-            return error("Non-canonical signature: S value is unnecessarily high");
-    }
-
-    return true;
-}
-
-bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, const CTransaction& txTo, unsigned int nIn, unsigned int flags, int nHashType)
-{
-    CScript::const_iterator pc = script.begin();
-    CScript::const_iterator pend = script.end();
-    CScript::const_iterator pbegincodehash = script.begin();
-    opcodetype opcode;
-    valtype vchPushValue;
-    vector<bool> vfExec;
-    vector<valtype> altstack;
-    if (script.size() > 10000)
-        return false;
-    int nOpCount = 0;
-
-    try
-    {
-        while (pc < pend)
-        {
-            bool fExec = !count(vfExec.begin(), vfExec.end(), false);
-
-            //
-            // Read instruction
-            //
-            if (!script.GetOp(pc, opcode, vchPushValue))
-                return false;
-            if (vchPushValue.size() > MAX_SCRIPT_ELEMENT_SIZE)
-                return false;
-
-            // Note how OP_RESERVED does not count towards the opcode limit.
-            if (opcode > OP_16 && ++nOpCount > 201)
-                return false;
-
-            if (opcode == OP_CAT ||
-                opcode == OP_SUBSTR ||
-                opcode == OP_LEFT ||
-                opcode == OP_RIGHT ||
-                opcode == OP_INVERT ||
-                opcode == OP_AND ||
-                opcode == OP_OR ||
-                opcode == OP_XOR ||
-                opcode == OP_2MUL ||
-                opcode == OP_2DIV ||
-                opcode == OP_MUL ||
-                opcode == OP_DIV ||
-                opcode == OP_MOD ||
-                opcode == OP_LSHIFT ||
-                opcode == OP_RSHIFT)
-                return false; // Disabled opcodes.
-
-            if (fExec && 0 <= opcode && opcode <= OP_PUSHDATA4)
-                stack.push_back(vchPushValue);
-            else if (fExec || (OP_IF <= opcode && opcode <= OP_ENDIF))
-            switch (opcode)
-            {
-                //
-                // Push value
-                //
-                case OP_1NEGATE:
-                case OP_1:
-                case OP_2:
-                case OP_3:
-                case OP_4:
-                case OP_5:
-                case OP_6:
-                case OP_7:
-                case OP_8:
-                case OP_9:
-                case OP_10:
-                case OP_11:
-                case OP_12:
-                case OP_13:
-                case OP_14:
-                case OP_15:
-                case OP_16:
-                {
-                    // ( -- value)
-                    CScriptNum bn((int)opcode - (int)(OP_1 - 1));
-                    stack.push_back(bn.getvch());
-                }
-                break;
-
-
-                //
-                // Control
-                //
-                case OP_NOP:
-                case OP_NOP1: case OP_NOP2: case OP_NOP3: case OP_NOP4: case OP_NOP5:
-                case OP_NOP6: case OP_NOP7: case OP_NOP8: case OP_NOP9: case OP_NOP10:
-                break;
-
-                case OP_IF:
-                case OP_NOTIF:
-                {
-                    // <expression> if [statements] [else [statements]] endif
-                    bool fValue = false;
-                    if (fExec)
-                    {
-                        if (stack.size() < 1)
-                            return false;
-                        valtype& vch = stacktop(-1);
-                        fValue = CastToBool(vch);
-                        if (opcode == OP_NOTIF)
-                            fValue = !fValue;
-                        popstack(stack);
-                    }
-                    vfExec.push_back(fValue);
-                }
-                break;
-
-                case OP_ELSE:
-                {
-                    if (vfExec.empty())
-                        return false;
-                    vfExec.back() = !vfExec.back();
-                }
-                break;
-
-                case OP_ENDIF:
-                {
-                    if (vfExec.empty())
-                        return false;
-                    vfExec.pop_back();
-                }
-                break;
-
-                case OP_VERIFY:
-                {
-                    // (true -- ) or
-                    // (false -- false) and return
-                    if (stack.size() < 1)
-                        return false;
-                    bool fValue = CastToBool(stacktop(-1));
-                    if (fValue)
-                        popstack(stack);
-                    else
-                        return false;
-                }
-                break;
-
-                case OP_RETURN:
-                {
-                    return false;
-                }
-                break;
-
-
-                //
-                // Stack ops
-                //
-                case OP_TOALTSTACK:
-                {
-                    if (stack.size() < 1)
-                        return false;
-                    altstack.push_back(stacktop(-1));
-                    popstack(stack);
-                }
-                break;
-
-                case OP_FROMALTSTACK:
-                {
-                    if (altstack.size() < 1)
-                        return false;
-                    stack.push_back(altstacktop(-1));
-                    popstack(altstack);
-                }
-                break;
-
-                case OP_2DROP:
-                {
-                    // (x1 x2 -- )
-                    if (stack.size() < 2)
-                        return false;
-                    popstack(stack);
-                    popstack(stack);
-                }
-                break;
-
-                case OP_2DUP:
-                {
-                    // (x1 x2 -- x1 x2 x1 x2)
-                    if (stack.size() < 2)
-                        return false;
-                    valtype vch1 = stacktop(-2);
-                    valtype vch2 = stacktop(-1);
-                    stack.push_back(vch1);
-                    stack.push_back(vch2);
-                }
-                break;
-
-                case OP_3DUP:
-                {
-                    // (x1 x2 x3 -- x1 x2 x3 x1 x2 x3)
-                    if (stack.size() < 3)
-                        return false;
-                    valtype vch1 = stacktop(-3);
-                    valtype vch2 = stacktop(-2);
-                    valtype vch3 = stacktop(-1);
-                    stack.push_back(vch1);
-                    stack.push_back(vch2);
-                    stack.push_back(vch3);
-                }
-                break;
-
-                case OP_2OVER:
-                {
-                    // (x1 x2 x3 x4 -- x1 x2 x3 x4 x1 x2)
-                    if (stack.size() < 4)
-                        return false;
-                    valtype vch1 = stacktop(-4);
-                    valtype vch2 = stacktop(-3);
-                    stack.push_back(vch1);
-                    stack.push_back(vch2);
-                }
-                break;
-
-                case OP_2ROT:
-                {
-                    // (x1 x2 x3 x4 x5 x6 -- x3 x4 x5 x6 x1 x2)
-                    if (stack.size() < 6)
-                        return false;
-                    valtype vch1 = stacktop(-6);
-                    valtype vch2 = stacktop(-5);
-                    stack.erase(stack.end()-6, stack.end()-4);
-                    stack.push_back(vch1);
-                    stack.push_back(vch2);
-                }
-                break;
-
-                case OP_2SWAP:
-                {
-                    // (x1 x2 x3 x4 -- x3 x4 x1 x2)
-                    if (stack.size() < 4)
-                        return false;
-                    swap(stacktop(-4), stacktop(-2));
-                    swap(stacktop(-3), stacktop(-1));
-                }
-                break;
-
-                case OP_IFDUP:
-                {
-                    // (x - 0 | x x)
-                    if (stack.size() < 1)
-                        return false;
-                    valtype vch = stacktop(-1);
-                    if (CastToBool(vch))
-                        stack.push_back(vch);
-                }
-                break;
-
-                case OP_DEPTH:
-                {
-                    // -- stacksize
-                    CScriptNum bn(stack.size());
-                    stack.push_back(bn.getvch());
-                }
-                break;
-
-                case OP_DROP:
-                {
-                    // (x -- )
-                    if (stack.size() < 1)
-                        return false;
-                    popstack(stack);
-                }
-                break;
-
-                case OP_DUP:
-                {
-                    // (x -- x x)
-                    if (stack.size() < 1)
-                        return false;
-                    valtype vch = stacktop(-1);
-                    stack.push_back(vch);
-                }
-                break;
-
-                case OP_NIP:
-                {
-                    // (x1 x2 -- x2)
-                    if (stack.size() < 2)
-                        return false;
-                    stack.erase(stack.end() - 2);
-                }
-                break;
-
-                case OP_OVER:
-                {
-                    // (x1 x2 -- x1 x2 x1)
-                    if (stack.size() < 2)
-                        return false;
-                    valtype vch = stacktop(-2);
-                    stack.push_back(vch);
-                }
-                break;
-
-                case OP_PICK:
-                case OP_ROLL:
-                {
-                    // (xn ... x2 x1 x0 n - xn ... x2 x1 x0 xn)
-                    // (xn ... x2 x1 x0 n - ... x2 x1 x0 xn)
-                    if (stack.size() < 2)
-                        return false;
-                    int n = CScriptNum(stacktop(-1)).getint();
-                    popstack(stack);
-                    if (n < 0 || n >= (int)stack.size())
-                        return false;
-                    valtype vch = stacktop(-n-1);
-                    if (opcode == OP_ROLL)
-                        stack.erase(stack.end()-n-1);
-                    stack.push_back(vch);
-                }
-                break;
-
-                case OP_ROT:
-                {
-                    // (x1 x2 x3 -- x2 x3 x1)
-                    //  x2 x1 x3  after first swap
-                    //  x2 x3 x1  after second swap
-                    if (stack.size() < 3)
-                        return false;
-                    swap(stacktop(-3), stacktop(-2));
-                    swap(stacktop(-2), stacktop(-1));
-                }
-                break;
-
-                case OP_SWAP:
-                {
-                    // (x1 x2 -- x2 x1)
-                    if (stack.size() < 2)
-                        return false;
-                    swap(stacktop(-2), stacktop(-1));
-                }
-                break;
-
-                case OP_TUCK:
-                {
-                    // (x1 x2 -- x2 x1 x2)
-                    if (stack.size() < 2)
-                        return false;
-                    valtype vch = stacktop(-1);
-                    stack.insert(stack.end()-2, vch);
-                }
-                break;
-
-
-                case OP_SIZE:
-                {
-                    // (in -- in size)
-                    if (stack.size() < 1)
-                        return false;
-                    CScriptNum bn(stacktop(-1).size());
-                    stack.push_back(bn.getvch());
-                }
-                break;
-
-
-                //
-                // Bitwise logic
-                //
-                case OP_EQUAL:
-                case OP_EQUALVERIFY:
-                //case OP_NOTEQUAL: // use OP_NUMNOTEQUAL
-                {
-                    // (x1 x2 - bool)
-                    if (stack.size() < 2)
-                        return false;
-                    valtype& vch1 = stacktop(-2);
-                    valtype& vch2 = stacktop(-1);
-                    bool fEqual = (vch1 == vch2);
-                    // OP_NOTEQUAL is disabled because it would be too easy to say
-                    // something like n != 1 and have some wiseguy pass in 1 with extra
-                    // zero bytes after it (numerically, 0x01 == 0x0001 == 0x000001)
-                    //if (opcode == OP_NOTEQUAL)
-                    //    fEqual = !fEqual;
-                    popstack(stack);
-                    popstack(stack);
-                    stack.push_back(fEqual ? vchTrue : vchFalse);
-                    if (opcode == OP_EQUALVERIFY)
-                    {
-                        if (fEqual)
-                            popstack(stack);
-                        else
-                            return false;
-                    }
-                }
-                break;
-
-
-                //
-                // Numeric
-                //
-                case OP_1ADD:
-                case OP_1SUB:
-                case OP_NEGATE:
-                case OP_ABS:
-                case OP_NOT:
-                case OP_0NOTEQUAL:
-                {
-                    // (in -- out)
-                    if (stack.size() < 1)
-                        return false;
-                    CScriptNum bn(stacktop(-1));
-                    switch (opcode)
-                    {
-                    case OP_1ADD:       bn += bnOne; break;
-                    case OP_1SUB:       bn -= bnOne; break;
-                    case OP_NEGATE:     bn = -bn; break;
-                    case OP_ABS:        if (bn < bnZero) bn = -bn; break;
-                    case OP_NOT:        bn = (bn == bnZero); break;
-                    case OP_0NOTEQUAL:  bn = (bn != bnZero); break;
-                    default:            assert(!"invalid opcode"); break;
-                    }
-                    popstack(stack);
-                    stack.push_back(bn.getvch());
-                }
-                break;
-
-                case OP_ADD:
-                case OP_SUB:
-                case OP_BOOLAND:
-                case OP_BOOLOR:
-                case OP_NUMEQUAL:
-                case OP_NUMEQUALVERIFY:
-                case OP_NUMNOTEQUAL:
-                case OP_LESSTHAN:
-                case OP_GREATERTHAN:
-                case OP_LESSTHANOREQUAL:
-                case OP_GREATERTHANOREQUAL:
-                case OP_MIN:
-                case OP_MAX:
-                {
-                    // (x1 x2 -- out)
-                    if (stack.size() < 2)
-                        return false;
-                    CScriptNum bn1(stacktop(-2));
-                    CScriptNum bn2(stacktop(-1));
-                    CScriptNum bn(0);
-                    switch (opcode)
-                    {
-                    case OP_ADD:
-                        bn = bn1 + bn2;
-                        break;
-
-                    case OP_SUB:
-                        bn = bn1 - bn2;
-                        break;
-
-                    case OP_BOOLAND:             bn = (bn1 != bnZero && bn2 != bnZero); break;
-                    case OP_BOOLOR:              bn = (bn1 != bnZero || bn2 != bnZero); break;
-                    case OP_NUMEQUAL:            bn = (bn1 == bn2); break;
-                    case OP_NUMEQUALVERIFY:      bn = (bn1 == bn2); break;
-                    case OP_NUMNOTEQUAL:         bn = (bn1 != bn2); break;
-                    case OP_LESSTHAN:            bn = (bn1 < bn2); break;
-                    case OP_GREATERTHAN:         bn = (bn1 > bn2); break;
-                    case OP_LESSTHANOREQUAL:     bn = (bn1 <= bn2); break;
-                    case OP_GREATERTHANOREQUAL:  bn = (bn1 >= bn2); break;
-                    case OP_MIN:                 bn = (bn1 < bn2 ? bn1 : bn2); break;
-                    case OP_MAX:                 bn = (bn1 > bn2 ? bn1 : bn2); break;
-                    default:                     assert(!"invalid opcode"); break;
-                    }
-                    popstack(stack);
-                    popstack(stack);
-                    stack.push_back(bn.getvch());
-
-                    if (opcode == OP_NUMEQUALVERIFY)
-                    {
-                        if (CastToBool(stacktop(-1)))
-                            popstack(stack);
-                        else
-                            return false;
-                    }
-                }
-                break;
-
-                case OP_WITHIN:
-                {
-                    // (x min max -- out)
-                    if (stack.size() < 3)
-                        return false;
-                    CScriptNum bn1(stacktop(-3));
-                    CScriptNum bn2(stacktop(-2));
-                    CScriptNum bn3(stacktop(-1));
-                    bool fValue = (bn2 <= bn1 && bn1 < bn3);
-                    popstack(stack);
-                    popstack(stack);
-                    popstack(stack);
-                    stack.push_back(fValue ? vchTrue : vchFalse);
-                }
-                break;
-
-
-                //
-                // Crypto
-                //
-                case OP_RIPEMD160:
-                case OP_SHA1:
-                case OP_SHA256:
-                case OP_HASH160:
-                case OP_HASH256:
-                {
-                    // (in -- hash)
-                    if (stack.size() < 1)
-                        return false;
-                    valtype& vch = stacktop(-1);
-                    valtype vchHash((opcode == OP_RIPEMD160 || opcode == OP_SHA1 || opcode == OP_HASH160) ? 20 : 32);
-                    if (opcode == OP_RIPEMD160)
-                        CRIPEMD160().Write(&vch[0], vch.size()).Finalize(&vchHash[0]);
-                    else if (opcode == OP_SHA1)
-                        CSHA1().Write(&vch[0], vch.size()).Finalize(&vchHash[0]);
-                    else if (opcode == OP_SHA256)
-                        CSHA256().Write(&vch[0], vch.size()).Finalize(&vchHash[0]);
-                    else if (opcode == OP_HASH160)
-                        CHash160().Write(&vch[0], vch.size()).Finalize(&vchHash[0]);
-                    else if (opcode == OP_HASH256)
-                        CHash256().Write(&vch[0], vch.size()).Finalize(&vchHash[0]);
-                    popstack(stack);
-                    stack.push_back(vchHash);
-                }
-                break;
-
-                case OP_CODESEPARATOR:
-                {
-                    // Hash starts after the code separator
-                    pbegincodehash = pc;
-                }
-                break;
-
-                case OP_CHECKSIG:
-                case OP_CHECKSIGVERIFY:
-                {
-                    // (sig pubkey -- bool)
-                    if (stack.size() < 2)
-                        return false;
-
-                    valtype& vchSig    = stacktop(-2);
-                    valtype& vchPubKey = stacktop(-1);
-
-                    // Subset of script starting at the most recent codeseparator
-                    CScript scriptCode(pbegincodehash, pend);
-
-                    // Drop the signature, since there's no way for a signature to sign itself
-                    scriptCode.FindAndDelete(CScript(vchSig));
-
-                    bool fSuccess = IsCanonicalSignature(vchSig, flags) && IsCanonicalPubKey(vchPubKey, flags) &&
-                        CheckSig(vchSig, vchPubKey, scriptCode, txTo, nIn, nHashType, flags);
-
-                    popstack(stack);
-                    popstack(stack);
-                    stack.push_back(fSuccess ? vchTrue : vchFalse);
-                    if (opcode == OP_CHECKSIGVERIFY)
-                    {
-                        if (fSuccess)
-                            popstack(stack);
-                        else
-                            return false;
-                    }
-                }
-                break;
-
-                case OP_CHECKMULTISIG:
-                case OP_CHECKMULTISIGVERIFY:
-                {
-                    // ([sig ...] num_of_signatures [pubkey ...] num_of_pubkeys -- bool)
-
-                    int i = 1;
-                    if ((int)stack.size() < i)
-                        return false;
-
-                    int nKeysCount = CScriptNum(stacktop(-i)).getint();
-                    if (nKeysCount < 0 || nKeysCount > 20)
-                        return false;
-                    nOpCount += nKeysCount;
-                    if (nOpCount > 201)
-                        return false;
-                    int ikey = ++i;
-                    i += nKeysCount;
-                    if ((int)stack.size() < i)
-                        return false;
-
-                    int nSigsCount = CScriptNum(stacktop(-i)).getint();
-                    if (nSigsCount < 0 || nSigsCount > nKeysCount)
-                        return false;
-                    int isig = ++i;
-                    i += nSigsCount;
-                    if ((int)stack.size() < i)
-                        return false;
-
-                    // Subset of script starting at the most recent codeseparator
-                    CScript scriptCode(pbegincodehash, pend);
-
-                    // Drop the signatures, since there's no way for a signature to sign itself
-                    for (int k = 0; k < nSigsCount; k++)
-                    {
-                        valtype& vchSig = stacktop(-isig-k);
-                        scriptCode.FindAndDelete(CScript(vchSig));
-                    }
-
-                    bool fSuccess = true;
-                    while (fSuccess && nSigsCount > 0)
-                    {
-                        valtype& vchSig    = stacktop(-isig);
-                        valtype& vchPubKey = stacktop(-ikey);
-
-                        // Check signature
-                        bool fOk = IsCanonicalSignature(vchSig, flags) && IsCanonicalPubKey(vchPubKey, flags) &&
-                            CheckSig(vchSig, vchPubKey, scriptCode, txTo, nIn, nHashType, flags);
-
-                        if (fOk) {
-                            isig++;
-                            nSigsCount--;
-                        }
-                        ikey++;
-                        nKeysCount--;
-
-                        // If there are more signatures left than keys left,
-                        // then too many signatures have failed
-                        if (nSigsCount > nKeysCount)
-                            fSuccess = false;
-                    }
-
-                    // Clean up stack of actual arguments
-                    while (i-- > 1)
-                        popstack(stack);
-
-                    // A bug causes CHECKMULTISIG to consume one extra argument
-                    // whose contents were not checked in any way.
-                    //
-                    // Unfortunately this is a potential source of mutability,
-                    // so optionally verify it is exactly equal to zero prior
-                    // to removing it from the stack.
-                    if (stack.size() < 1)
-                        return false;
-                    if ((flags & SCRIPT_VERIFY_NULLDUMMY) && stacktop(-1).size())
-                        return error("CHECKMULTISIG dummy argument not null");
-                    popstack(stack);
-
-                    stack.push_back(fSuccess ? vchTrue : vchFalse);
-
-                    if (opcode == OP_CHECKMULTISIGVERIFY)
-                    {
-                        if (fSuccess)
-                            popstack(stack);
-                        else
-                            return false;
-                    }
-                }
-                break;
-
-                default:
-                    return false;
-            }
-
-            // Size limits
-            if (stack.size() + altstack.size() > 1000)
-                return false;
-        }
-    }
-    catch (...)
-    {
-        return false;
-    }
-
-
-    if (!vfExec.empty())
-        return false;
-
-    return true;
-}
-
-
-
-
-
-
-
-namespace {
-
-/** Wrapper that serializes like CTransaction, but with the modifications
- *  required for the signature hash done in-place
- */
-class CTransactionSignatureSerializer {
-private:
-    const CTransaction &txTo;  // reference to the spending transaction (the one being serialized)
-    const CScript &scriptCode; // output script being consumed
-    const unsigned int nIn;    // input index of txTo being signed
-    const bool fAnyoneCanPay;  // whether the hashtype has the SIGHASH_ANYONECANPAY flag set
-    const bool fHashSingle;    // whether the hashtype is SIGHASH_SINGLE
-    const bool fHashNone;      // whether the hashtype is SIGHASH_NONE
-
-public:
-    CTransactionSignatureSerializer(const CTransaction &txToIn, const CScript &scriptCodeIn, unsigned int nInIn, int nHashTypeIn) :
-        txTo(txToIn), scriptCode(scriptCodeIn), nIn(nInIn),
-        fAnyoneCanPay(!!(nHashTypeIn & SIGHASH_ANYONECANPAY)),
-        fHashSingle((nHashTypeIn & 0x1f) == SIGHASH_SINGLE),
-        fHashNone((nHashTypeIn & 0x1f) == SIGHASH_NONE) {}
-
-    /** Serialize the passed scriptCode, skipping OP_CODESEPARATORs */
-    template<typename S>
-    void SerializeScriptCode(S &s, int nType, int nVersion) const {
-        CScript::const_iterator it = scriptCode.begin();
-        CScript::const_iterator itBegin = it;
-        opcodetype opcode;
-        unsigned int nCodeSeparators = 0;
-        while (scriptCode.GetOp(it, opcode)) {
-            if (opcode == OP_CODESEPARATOR)
-                nCodeSeparators++;
-        }
-        ::WriteCompactSize(s, scriptCode.size() - nCodeSeparators);
-        it = itBegin;
-        while (scriptCode.GetOp(it, opcode)) {
-            if (opcode == OP_CODESEPARATOR) {
-                s.write((char*)&itBegin[0], it-itBegin-1);
-                itBegin = it;
-            }
-        }
-        s.write((char*)&itBegin[0], it-itBegin);
-    }
-
-    /** Serialize an input of txTo */
-    template<typename S>
-    void SerializeInput(S &s, unsigned int nInput, int nType, int nVersion) const {
-        // In case of SIGHASH_ANYONECANPAY, only the input being signed is serialized
-        if (fAnyoneCanPay)
-            nInput = nIn;
-        // Serialize the prevout
-        ::Serialize(s, txTo.vin[nInput].prevout, nType, nVersion);
-        // Serialize the script
-        if (nInput != nIn)
-            // Blank out other inputs' signatures
-            ::Serialize(s, CScript(), nType, nVersion);
-        else
-            SerializeScriptCode(s, nType, nVersion);
-        // Serialize the nSequence
-        if (nInput != nIn && (fHashSingle || fHashNone))
-            // let the others update at will
-            ::Serialize(s, (int)0, nType, nVersion);
-        else
-            ::Serialize(s, txTo.vin[nInput].nSequence, nType, nVersion);
-    }
-
-    /** Serialize an output of txTo */
-    template<typename S>
-    void SerializeOutput(S &s, unsigned int nOutput, int nType, int nVersion) const {
-        if (fHashSingle && nOutput != nIn)
-            // Do not lock-in the txout payee at other indices as txin
-            ::Serialize(s, CTxOut(), nType, nVersion);
-        else
-            ::Serialize(s, txTo.vout[nOutput], nType, nVersion);
-    }
-
-    /** Serialize txTo */
-    template<typename S>
-    void Serialize(S &s, int nType, int nVersion) const {
-        // Serialize nVersion
-        ::Serialize(s, txTo.nVersion, nType, nVersion);
-        // Serialize vin
-        unsigned int nInputs = fAnyoneCanPay ? 1 : txTo.vin.size();
-        ::WriteCompactSize(s, nInputs);
-        for (unsigned int nInput = 0; nInput < nInputs; nInput++)
-             SerializeInput(s, nInput, nType, nVersion);
-        // Serialize vout
-        unsigned int nOutputs = fHashNone ? 0 : (fHashSingle ? nIn+1 : txTo.vout.size());
-        ::WriteCompactSize(s, nOutputs);
-        for (unsigned int nOutput = 0; nOutput < nOutputs; nOutput++)
-             SerializeOutput(s, nOutput, nType, nVersion);
-        // Serialie nLockTime
-        ::Serialize(s, txTo.nLockTime, nType, nVersion);
-    }
-};
-
-} // anon namespace
-
-uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType)
-{
-    if (nIn >= txTo.vin.size()) {
-        LogPrintf("ERROR: SignatureHash() : nIn=%d out of range\n", nIn);
-        return 1;
-    }
-
-    // Check for invalid use of SIGHASH_SINGLE
-    if ((nHashType & 0x1f) == SIGHASH_SINGLE) {
-        if (nIn >= txTo.vout.size()) {
-            LogPrintf("ERROR: SignatureHash() : nOut=%d out of range\n", nIn);
-            return 1;
-        }
-    }
-
-    // Wrapper to serialize only the necessary parts of the transaction being signed
-    CTransactionSignatureSerializer txTmp(txTo, scriptCode, nIn, nHashType);
-
-    // Serialize and hash
-    CHashWriter ss(SER_GETHASH, 0);
-    ss << txTmp << nHashType;
-    return ss.GetHash();
-}
-
-// Valid signature cache, to avoid doing expensive ECDSA signature checking
-// twice for every transaction (once when accepted into memory pool, and
-// again when accepted into the block chain)
-class CSignatureCache
-{
-private:
-     // sigdata_type is (signature hash, signature, public key):
-    typedef boost::tuple<uint256, std::vector<unsigned char>, CPubKey> sigdata_type;
-    std::set< sigdata_type> setValid;
-    boost::shared_mutex cs_sigcache;
-
-public:
-    bool
-    Get(const uint256 &hash, const std::vector<unsigned char>& vchSig, const CPubKey& pubKey)
-    {
-        boost::shared_lock<boost::shared_mutex> lock(cs_sigcache);
-
-        sigdata_type k(hash, vchSig, pubKey);
-        std::set<sigdata_type>::iterator mi = setValid.find(k);
-        if (mi != setValid.end())
-            return true;
-        return false;
-    }
-
-    void Set(const uint256 &hash, const std::vector<unsigned char>& vchSig, const CPubKey& pubKey)
-    {
-        // DoS prevention: limit cache size to less than 10MB
-        // (~200 bytes per cache entry times 50,000 entries)
-        // Since there are a maximum of 20,000 signature operations per block
-        // 50,000 is a reasonable default.
-        int64_t nMaxCacheSize = GetArg("-maxsigcachesize", 50000);
-        if (nMaxCacheSize <= 0) return;
-
-        boost::unique_lock<boost::shared_mutex> lock(cs_sigcache);
-
-        while (static_cast<int64_t>(setValid.size()) > nMaxCacheSize)
-        {
-            // Evict a random entry. Random because that helps
-            // foil would-be DoS attackers who might try to pre-generate
-            // and re-use a set of valid signatures just-slightly-greater
-            // than our cache size.
-            uint256 randomHash = GetRandHash();
-            std::vector<unsigned char> unused;
-            std::set<sigdata_type>::iterator it =
-                setValid.lower_bound(sigdata_type(randomHash, unused, unused));
-            if (it == setValid.end())
-                it = setValid.begin();
-            setValid.erase(*it);
-        }
-
-        sigdata_type k(hash, vchSig, pubKey);
-        setValid.insert(k);
-    }
-};
-
-bool CheckSig(vector<unsigned char> vchSig, const vector<unsigned char> &vchPubKey, const CScript &scriptCode,
-              const CTransaction& txTo, unsigned int nIn, int nHashType, int flags)
-{
-    static CSignatureCache signatureCache;
-
-    CPubKey pubkey(vchPubKey);
-    if (!pubkey.IsValid())
-        return false;
-
-    // Hash type is one byte tacked on to the end of the signature
-    if (vchSig.empty())
-        return false;
-    if (nHashType == 0)
-        nHashType = vchSig.back();
-    else if (nHashType != vchSig.back())
-        return false;
-    vchSig.pop_back();
-
-    uint256 sighash = SignatureHash(scriptCode, txTo, nIn, nHashType);
-
-    if (signatureCache.Get(sighash, vchSig, pubkey))
-        return true;
-
-    if (!pubkey.Verify(sighash, vchSig))
-        return false;
-
-    if (!(flags & SCRIPT_VERIFY_NOCACHE))
-        signatureCache.Set(sighash, vchSig, pubkey);
-
-    return true;
-}
-
-
-
-
-
-
-
-
-
-//
-// Return public keys or hashes from scriptPubKey, for 'standard' transaction types.
-//
-bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsigned char> >& vSolutionsRet)
-{
-    // Templates
-    static multimap<txnouttype, CScript> mTemplates;
-    if (mTemplates.empty())
-    {
-        // Standard tx, sender provides pubkey, receiver adds signature
-        mTemplates.insert(make_pair(TX_PUBKEY, CScript() << OP_PUBKEY << OP_CHECKSIG));
-
-        // Bitcoin address tx, sender provides hash of pubkey, receiver provides signature and pubkey
-        mTemplates.insert(make_pair(TX_PUBKEYHASH, CScript() << OP_DUP << OP_HASH160 << OP_PUBKEYHASH << OP_EQUALVERIFY << OP_CHECKSIG));
-
-        // Sender provides N pubkeys, receivers provides M signatures
-        mTemplates.insert(make_pair(TX_MULTISIG, CScript() << OP_SMALLINTEGER << OP_PUBKEYS << OP_SMALLINTEGER << OP_CHECKMULTISIG));
-
-        // Empty, provably prunable, data-carrying output
-        if (GetBoolArg("-datacarrier", true))
-            mTemplates.insert(make_pair(TX_NULL_DATA, CScript() << OP_RETURN << OP_SMALLDATA));
-        mTemplates.insert(make_pair(TX_NULL_DATA, CScript() << OP_RETURN));
-    }
-
-    // Shortcut for pay-to-script-hash, which are more constrained than the other types:
-    // it is always OP_HASH160 20 [20 byte hash] OP_EQUAL
-    if (scriptPubKey.IsPayToScriptHash())
-    {
-        typeRet = TX_SCRIPTHASH;
-        vector<unsigned char> hashBytes(scriptPubKey.begin()+2, scriptPubKey.begin()+22);
-        vSolutionsRet.push_back(hashBytes);
-        return true;
-    }
-
-    // Scan templates
-    const CScript& script1 = scriptPubKey;
-    BOOST_FOREACH(const PAIRTYPE(txnouttype, CScript)& tplate, mTemplates)
-    {
-        const CScript& script2 = tplate.second;
-        vSolutionsRet.clear();
-
-        opcodetype opcode1, opcode2;
-        vector<unsigned char> vch1, vch2;
-
-        // Compare
-        CScript::const_iterator pc1 = script1.begin();
-        CScript::const_iterator pc2 = script2.begin();
-        while (true)
-        {
-            if (pc1 == script1.end() && pc2 == script2.end())
-            {
-                // Found a match
-                typeRet = tplate.first;
-                if (typeRet == TX_MULTISIG)
-                {
-                    // Additional checks for TX_MULTISIG:
-                    unsigned char m = vSolutionsRet.front()[0];
-                    unsigned char n = vSolutionsRet.back()[0];
-                    if (m < 1 || n < 1 || m > n || vSolutionsRet.size()-2 != n)
-                        return false;
-                }
-                return true;
-            }
-            if (!script1.GetOp(pc1, opcode1, vch1))
-                break;
-            if (!script2.GetOp(pc2, opcode2, vch2))
-                break;
-
-            // Template matching opcodes:
-            if (opcode2 == OP_PUBKEYS)
-            {
-                while (vch1.size() >= 33 && vch1.size() <= 65)
-                {
-                    vSolutionsRet.push_back(vch1);
-                    if (!script1.GetOp(pc1, opcode1, vch1))
-                        break;
-                }
-                if (!script2.GetOp(pc2, opcode2, vch2))
-                    break;
-                // Normal situation is to fall through
-                // to other if/else statements
-            }
-
-            if (opcode2 == OP_PUBKEY)
-            {
-                if (vch1.size() < 33 || vch1.size() > 65)
-                    break;
-                vSolutionsRet.push_back(vch1);
-            }
-            else if (opcode2 == OP_PUBKEYHASH)
-            {
-                if (vch1.size() != sizeof(uint160))
-                    break;
-                vSolutionsRet.push_back(vch1);
-            }
-            else if (opcode2 == OP_SMALLINTEGER)
-            {   // Single-byte small integer pushed onto vSolutions
-                if (opcode1 == OP_0 ||
-                    (opcode1 >= OP_1 && opcode1 <= OP_16))
-                {
-                    char n = (char)CScript::DecodeOP_N(opcode1);
-                    vSolutionsRet.push_back(valtype(1, n));
-                }
-                else
-                    break;
-            }
-            else if (opcode2 == OP_SMALLDATA)
-            {
-                // small pushdata, <= MAX_OP_RETURN_RELAY bytes
-                if (vch1.size() > MAX_OP_RETURN_RELAY)
-                    break;
-            }
-            else if (opcode1 != opcode2 || vch1 != vch2)
-            {
-                // Others must match exactly
-                break;
-            }
-        }
-    }
-
-    vSolutionsRet.clear();
-    typeRet = TX_NONSTANDARD;
-    return false;
-}
-
-
-bool Sign1(const CKeyID& address, const CKeyStore& keystore, uint256 hash, int nHashType, CScript& scriptSigRet)
-{
-    CKey key;
-    if (!keystore.GetKey(address, key))
-        return false;
-
-    vector<unsigned char> vchSig;
-    if (!key.Sign(hash, vchSig))
-        return false;
-    vchSig.push_back((unsigned char)nHashType);
-    scriptSigRet << vchSig;
-
-    return true;
-}
-
-bool SignN(const vector<valtype>& multisigdata, const CKeyStore& keystore, uint256 hash, int nHashType, CScript& scriptSigRet)
-{
-    int nSigned = 0;
-    int nRequired = multisigdata.front()[0];
-    for (unsigned int i = 1; i < multisigdata.size()-1 && nSigned < nRequired; i++)
-    {
-        const valtype& pubkey = multisigdata[i];
-        CKeyID keyID = CPubKey(pubkey).GetID();
-        if (Sign1(keyID, keystore, hash, nHashType, scriptSigRet))
-            ++nSigned;
-    }
-    return nSigned==nRequired;
-}
-
-//
-// Sign scriptPubKey with private keys stored in keystore, given transaction hash and hash type.
-// Signatures are returned in scriptSigRet (or returns false if scriptPubKey can't be signed),
-// unless whichTypeRet is TX_SCRIPTHASH, in which case scriptSigRet is the redemption script.
-// Returns false if scriptPubKey could not be completely satisfied.
-//
-bool Solver(const CKeyStore& keystore, const CScript& scriptPubKey, uint256 hash, int nHashType,
-                  CScript& scriptSigRet, txnouttype& whichTypeRet)
-{
-    scriptSigRet.clear();
-
-    vector<valtype> vSolutions;
-    if (!Solver(scriptPubKey, whichTypeRet, vSolutions))
-        return false;
-
-    CKeyID keyID;
-    switch (whichTypeRet)
-    {
-    case TX_NONSTANDARD:
-    case TX_NULL_DATA:
-        return false;
-    case TX_PUBKEY:
-        keyID = CPubKey(vSolutions[0]).GetID();
-        return Sign1(keyID, keystore, hash, nHashType, scriptSigRet);
-    case TX_PUBKEYHASH:
-        keyID = CKeyID(uint160(vSolutions[0]));
-        if (!Sign1(keyID, keystore, hash, nHashType, scriptSigRet))
-            return false;
-        else
-        {
-            CPubKey vch;
-            keystore.GetPubKey(keyID, vch);
-            scriptSigRet << vch;
-        }
-        return true;
-    case TX_SCRIPTHASH:
-        return keystore.GetCScript(uint160(vSolutions[0]), scriptSigRet);
-
-    case TX_MULTISIG:
-        scriptSigRet << OP_0; // workaround CHECKMULTISIG bug
-        return (SignN(vSolutions, keystore, hash, nHashType, scriptSigRet));
-    }
-    return false;
-}
-
-int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned char> >& vSolutions)
-{
-    switch (t)
-    {
-    case TX_NONSTANDARD:
-    case TX_NULL_DATA:
-        return -1;
-    case TX_PUBKEY:
-        return 1;
-    case TX_PUBKEYHASH:
-        return 2;
-    case TX_MULTISIG:
-        if (vSolutions.size() < 1 || vSolutions[0].size() < 1)
-            return -1;
-        return vSolutions[0][0] + 1;
-    case TX_SCRIPTHASH:
-        return 1; // doesn't include args needed by the script
-    }
-    return -1;
-}
-
-bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType)
-{
-    vector<valtype> vSolutions;
-    if (!Solver(scriptPubKey, whichType, vSolutions))
-        return false;
-
-    if (whichType == TX_MULTISIG)
-    {
-        unsigned char m = vSolutions.front()[0];
-        unsigned char n = vSolutions.back()[0];
-        // Support up to x-of-3 multisig txns as standard
-        if (n < 1 || n > 3)
-            return false;
-        if (m < 1 || m > n)
-            return false;
-    }
-
-    return whichType != TX_NONSTANDARD;
-}
-
-
-unsigned int HaveKeys(const vector<valtype>& pubkeys, const CKeyStore& keystore)
-{
-    unsigned int nResult = 0;
-    BOOST_FOREACH(const valtype& pubkey, pubkeys)
-    {
-        CKeyID keyID = CPubKey(pubkey).GetID();
-        if (keystore.HaveKey(keyID))
-            ++nResult;
-    }
-    return nResult;
-}
-
-isminetype IsMine(const CKeyStore &keystore, const CTxDestination& dest)
-{
-    CScript script;
-    script.SetDestination(dest);
-    return IsMine(keystore, script);
-}
-
-isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
-{
-    vector<valtype> vSolutions;
-    txnouttype whichType;
-    if (!Solver(scriptPubKey, whichType, vSolutions)) {
-        if (keystore.HaveWatchOnly(scriptPubKey))
-            return ISMINE_WATCH_ONLY;
-        return ISMINE_NO;
-    }
-
-    CKeyID keyID;
-    switch (whichType)
-    {
-    case TX_NONSTANDARD:
-    case TX_NULL_DATA:
-        break;
-    case TX_PUBKEY:
-        keyID = CPubKey(vSolutions[0]).GetID();
-        if (keystore.HaveKey(keyID))
-            return ISMINE_SPENDABLE;
-        break;
-    case TX_PUBKEYHASH:
-        keyID = CKeyID(uint160(vSolutions[0]));
-        if (keystore.HaveKey(keyID))
-            return ISMINE_SPENDABLE;
-        break;
-    case TX_SCRIPTHASH:
-    {
-        CScriptID scriptID = CScriptID(uint160(vSolutions[0]));
-        CScript subscript;
-        if (keystore.GetCScript(scriptID, subscript)) {
-            isminetype ret = IsMine(keystore, subscript);
-            if (ret == ISMINE_SPENDABLE)
-                return ret;
-        }
-        break;
-    }
-    case TX_MULTISIG:
-    {
-        // Only consider transactions "mine" if we own ALL the
-        // keys involved. multi-signature transactions that are
-        // partially owned (somebody else has a key that can spend
-        // them) enable spend-out-from-under-you attacks, especially
-        // in shared-wallet situations.
-        vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1);
-        if (HaveKeys(keys, keystore) == keys.size())
-            return ISMINE_SPENDABLE;
-        break;
-    }
-    }
-
-    if (keystore.HaveWatchOnly(scriptPubKey))
-        return ISMINE_WATCH_ONLY;
-    return ISMINE_NO;
-}
-
-bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet)
-{
-    vector<valtype> vSolutions;
-    txnouttype whichType;
-    if (!Solver(scriptPubKey, whichType, vSolutions))
-        return false;
-
-    if (whichType == TX_PUBKEY)
-    {
-        addressRet = CPubKey(vSolutions[0]).GetID();
-        return true;
-    }
-    else if (whichType == TX_PUBKEYHASH)
-    {
-        addressRet = CKeyID(uint160(vSolutions[0]));
-        return true;
-    }
-    else if (whichType == TX_SCRIPTHASH)
-    {
-        addressRet = CScriptID(uint160(vSolutions[0]));
-        return true;
-    }
-    // Multisig txns have more than one address...
-    return false;
-}
-
-bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, vector<CTxDestination>& addressRet, int& nRequiredRet)
-{
-    addressRet.clear();
-    typeRet = TX_NONSTANDARD;
-    vector<valtype> vSolutions;
-    if (!Solver(scriptPubKey, typeRet, vSolutions))
-        return false;
-    if (typeRet == TX_NULL_DATA){
-        // This is data, not addresses
-        return false;
-    }
-
-    if (typeRet == TX_MULTISIG)
-    {
-        nRequiredRet = vSolutions.front()[0];
-        for (unsigned int i = 1; i < vSolutions.size()-1; i++)
-        {
-            CTxDestination address = CPubKey(vSolutions[i]).GetID();
-            addressRet.push_back(address);
-        }
-    }
-    else
-    {
-        nRequiredRet = 1;
-        CTxDestination address;
-        if (!ExtractDestination(scriptPubKey, address))
-           return false;
-        addressRet.push_back(address);
-    }
-
-    return true;
-}
-
-class CAffectedKeysVisitor : public boost::static_visitor<void> {
-private:
-    const CKeyStore &keystore;
-    std::vector<CKeyID> &vKeys;
-
-public:
-    CAffectedKeysVisitor(const CKeyStore &keystoreIn, std::vector<CKeyID> &vKeysIn) : keystore(keystoreIn), vKeys(vKeysIn) {}
-
-    void Process(const CScript &script) {
-        txnouttype type;
-        std::vector<CTxDestination> vDest;
-        int nRequired;
-        if (ExtractDestinations(script, type, vDest, nRequired)) {
-            BOOST_FOREACH(const CTxDestination &dest, vDest)
-                boost::apply_visitor(*this, dest);
-        }
-    }
-
-    void operator()(const CKeyID &keyId) {
-        if (keystore.HaveKey(keyId))
-            vKeys.push_back(keyId);
-    }
-
-    void operator()(const CScriptID &scriptId) {
-        CScript script;
-        if (keystore.GetCScript(scriptId, script))
-            Process(script);
-    }
-
-    void operator()(const CNoDestination &none) {}
-};
-
-void ExtractAffectedKeys(const CKeyStore &keystore, const CScript& scriptPubKey, std::vector<CKeyID> &vKeys) {
-    CAffectedKeysVisitor(keystore, vKeys).Process(scriptPubKey);
-}
-
-bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn,
-                  unsigned int flags, int nHashType)
-{
-    vector<vector<unsigned char> > stack, stackCopy;
-    if (!EvalScript(stack, scriptSig, txTo, nIn, flags, nHashType))
-        return false;
-    if (flags & SCRIPT_VERIFY_P2SH)
-        stackCopy = stack;
-    if (!EvalScript(stack, scriptPubKey, txTo, nIn, flags, nHashType))
-        return false;
-    if (stack.empty())
-        return false;
-
-    if (CastToBool(stack.back()) == false)
-        return false;
-
-    // Additional validation for spend-to-script-hash transactions:
-    if ((flags & SCRIPT_VERIFY_P2SH) && scriptPubKey.IsPayToScriptHash())
-    {
-        if (!scriptSig.IsPushOnly()) // scriptSig must be literals-only
-            return false;            // or validation fails
-
-        // stackCopy cannot be empty here, because if it was the
-        // P2SH  HASH <> EQUAL  scriptPubKey would be evaluated with
-        // an empty stack and the EvalScript above would return false.
-        assert(!stackCopy.empty());
-
-        const valtype& pubKeySerialized = stackCopy.back();
-        CScript pubKey2(pubKeySerialized.begin(), pubKeySerialized.end());
-        popstack(stackCopy);
-
-        if (!EvalScript(stackCopy, pubKey2, txTo, nIn, flags, nHashType))
-            return false;
-        if (stackCopy.empty())
-            return false;
-        return CastToBool(stackCopy.back());
-    }
-
-    return true;
-}
-
-
-bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, int nHashType)
-{
-    assert(nIn < txTo.vin.size());
-    CTxIn& txin = txTo.vin[nIn];
-
-    // Leave out the signature from the hash, since a signature can't sign itself.
-    // The checksig op will also drop the signatures from its hash.
-    uint256 hash = SignatureHash(fromPubKey, txTo, nIn, nHashType);
-
-    txnouttype whichType;
-    if (!Solver(keystore, fromPubKey, hash, nHashType, txin.scriptSig, whichType))
-        return false;
-
-    if (whichType == TX_SCRIPTHASH)
-    {
-        // Solver returns the subscript that need to be evaluated;
-        // the final scriptSig is the signatures from that
-        // and then the serialized subscript:
-        CScript subscript = txin.scriptSig;
-
-        // Recompute txn hash using subscript in place of scriptPubKey:
-        uint256 hash2 = SignatureHash(subscript, txTo, nIn, nHashType);
-
-        txnouttype subType;
-        bool fSolved =
-            Solver(keystore, subscript, hash2, nHashType, txin.scriptSig, subType) && subType != TX_SCRIPTHASH;
-        // Append serialized subscript whether or not it is completely signed:
-        txin.scriptSig << static_cast<valtype>(subscript);
-        if (!fSolved) return false;
-    }
-
-    // Test solution
-    return VerifyScript(txin.scriptSig, fromPubKey, txTo, nIn, STANDARD_SCRIPT_VERIFY_FLAGS, 0);
-}
-
-bool SignSignature(const CKeyStore &keystore, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType)
-{
-    assert(nIn < txTo.vin.size());
-    CTxIn& txin = txTo.vin[nIn];
-    assert(txin.prevout.n < txFrom.vout.size());
-    const CTxOut& txout = txFrom.vout[txin.prevout.n];
-
-    return SignSignature(keystore, txout.scriptPubKey, txTo, nIn, nHashType);
-}
-
-static CScript PushAll(const vector<valtype>& values)
-{
-    CScript result;
-    BOOST_FOREACH(const valtype& v, values)
-        result << v;
-    return result;
-}
-
-static CScript CombineMultisig(CScript scriptPubKey, const CMutableTransaction& txTo, unsigned int nIn,
-                               const vector<valtype>& vSolutions,
-                               vector<valtype>& sigs1, vector<valtype>& sigs2)
-{
-    // Combine all the signatures we've got:
-    set<valtype> allsigs;
-    BOOST_FOREACH(const valtype& v, sigs1)
-    {
-        if (!v.empty())
-            allsigs.insert(v);
-    }
-    BOOST_FOREACH(const valtype& v, sigs2)
-    {
-        if (!v.empty())
-            allsigs.insert(v);
-    }
-
-    // Build a map of pubkey -> signature by matching sigs to pubkeys:
-    assert(vSolutions.size() > 1);
-    unsigned int nSigsRequired = vSolutions.front()[0];
-    unsigned int nPubKeys = vSolutions.size()-2;
-    map<valtype, valtype> sigs;
-    BOOST_FOREACH(const valtype& sig, allsigs)
-    {
-        for (unsigned int i = 0; i < nPubKeys; i++)
-        {
-            const valtype& pubkey = vSolutions[i+1];
-            if (sigs.count(pubkey))
-                continue; // Already got a sig for this pubkey
-
-            if (CheckSig(sig, pubkey, scriptPubKey, txTo, nIn, 0, 0))
-            {
-                sigs[pubkey] = sig;
-                break;
-            }
-        }
-    }
-    // Now build a merged CScript:
-    unsigned int nSigsHave = 0;
-    CScript result; result << OP_0; // pop-one-too-many workaround
-    for (unsigned int i = 0; i < nPubKeys && nSigsHave < nSigsRequired; i++)
-    {
-        if (sigs.count(vSolutions[i+1]))
-        {
-            result << sigs[vSolutions[i+1]];
-            ++nSigsHave;
-        }
-    }
-    // Fill any missing with OP_0:
-    for (unsigned int i = nSigsHave; i < nSigsRequired; i++)
-        result << OP_0;
-
-    return result;
-}
-
-static CScript CombineSignatures(CScript scriptPubKey, const CTransaction& txTo, unsigned int nIn,
-                                 const txnouttype txType, const vector<valtype>& vSolutions,
-                                 vector<valtype>& sigs1, vector<valtype>& sigs2)
-{
-    switch (txType)
-    {
-    case TX_NONSTANDARD:
-    case TX_NULL_DATA:
-        // Don't know anything about this, assume bigger one is correct:
-        if (sigs1.size() >= sigs2.size())
-            return PushAll(sigs1);
-        return PushAll(sigs2);
-    case TX_PUBKEY:
-    case TX_PUBKEYHASH:
-        // Signatures are bigger than placeholders or empty scripts:
-        if (sigs1.empty() || sigs1[0].empty())
-            return PushAll(sigs2);
-        return PushAll(sigs1);
-    case TX_SCRIPTHASH:
-        if (sigs1.empty() || sigs1.back().empty())
-            return PushAll(sigs2);
-        else if (sigs2.empty() || sigs2.back().empty())
-            return PushAll(sigs1);
-        else
-        {
-            // Recur to combine:
-            valtype spk = sigs1.back();
-            CScript pubKey2(spk.begin(), spk.end());
-
-            txnouttype txType2;
-            vector<vector<unsigned char> > vSolutions2;
-            Solver(pubKey2, txType2, vSolutions2);
-            sigs1.pop_back();
-            sigs2.pop_back();
-            CScript result = CombineSignatures(pubKey2, txTo, nIn, txType2, vSolutions2, sigs1, sigs2);
-            result << spk;
-            return result;
-        }
-    case TX_MULTISIG:
-        return CombineMultisig(scriptPubKey, txTo, nIn, vSolutions, sigs1, sigs2);
-    }
-
-    return CScript();
-}
-
-CScript CombineSignatures(CScript scriptPubKey, const CTransaction& txTo, unsigned int nIn,
-                          const CScript& scriptSig1, const CScript& scriptSig2)
-{
-    txnouttype txType;
-    vector<vector<unsigned char> > vSolutions;
-    Solver(scriptPubKey, txType, vSolutions);
-
-    vector<valtype> stack1;
-    EvalScript(stack1, scriptSig1, CTransaction(), 0, SCRIPT_VERIFY_STRICTENC, 0);
-    vector<valtype> stack2;
-    EvalScript(stack2, scriptSig2, CTransaction(), 0, SCRIPT_VERIFY_STRICTENC, 0);
-
-    return CombineSignatures(scriptPubKey, txTo, nIn, txType, vSolutions, stack1, stack2);
-}
-
-unsigned int CScript::GetSigOpCount(bool fAccurate) const
-{
-    unsigned int n = 0;
-    const_iterator pc = begin();
-    opcodetype lastOpcode = OP_INVALIDOPCODE;
-    while (pc < end())
-    {
-        opcodetype opcode;
-        if (!GetOp(pc, opcode))
-            break;
-        if (opcode == OP_CHECKSIG || opcode == OP_CHECKSIGVERIFY)
-            n++;
-        else if (opcode == OP_CHECKMULTISIG || opcode == OP_CHECKMULTISIGVERIFY)
-        {
-            if (fAccurate && lastOpcode >= OP_1 && lastOpcode <= OP_16)
-                n += DecodeOP_N(lastOpcode);
-            else
-                n += 20;
-        }
-        lastOpcode = opcode;
-    }
-    return n;
-}
-
-unsigned int CScript::GetSigOpCount(const CScript& scriptSig) const
-{
-    if (!IsPayToScriptHash())
-        return GetSigOpCount(true);
-
-    // This is a pay-to-script-hash scriptPubKey;
-    // get the last item that the scriptSig
-    // pushes onto the stack:
-    const_iterator pc = scriptSig.begin();
-    vector<unsigned char> data;
-    while (pc < scriptSig.end())
-    {
-        opcodetype opcode;
-        if (!scriptSig.GetOp(pc, opcode, data))
-            return 0;
-        if (opcode > OP_16)
-            return 0;
-    }
-
-    /// ... and return its opcount:
-    CScript subscript(data.begin(), data.end());
-    return subscript.GetSigOpCount(true);
-}
-
-bool CScript::IsPayToScriptHash() const
-{
-    // Extra-fast test for pay-to-script-hash CScripts:
-    return (this->size() == 23 &&
-            this->at(0) == OP_HASH160 &&
-            this->at(1) == 0x14 &&
-            this->at(22) == OP_EQUAL);
-}
-
-bool CScript::IsPushOnly() const
-{
-    const_iterator pc = begin();
-    while (pc < end())
-    {
-        // Note how a script with an invalid PUSHDATA returns False.
-        opcodetype opcode;
-        if (!GetOp(pc, opcode))
-            return false;
-
-        // Note that IsPushOnly() *does* consider OP_RESERVED to be a
-        // push-type opcode, however execution of OP_RESERVED fails, so
-        // it's not relevant to P2SH as the scriptSig would fail prior to
-        // the P2SH special validation code being executed.
-        if (opcode > OP_16)
-            return false;
-    }
-    return true;
-}
-
-bool CScript::HasCanonicalPushes() const
-{
-    const_iterator pc = begin();
-    while (pc < end())
-    {
-        opcodetype opcode;
-        std::vector<unsigned char> data;
-        if (!GetOp(pc, opcode, data))
-            return false;
-        if (opcode > OP_16)
-            continue;
-        if (opcode < OP_PUSHDATA1 && opcode > OP_0 && (data.size() == 1 && data[0] <= 16))
-            // Could have used an OP_n code, rather than a 1-byte push.
-            return false;
-        if (opcode == OP_PUSHDATA1 && data.size() < OP_PUSHDATA1)
-            // Could have used a normal n-byte push, rather than OP_PUSHDATA1.
-            return false;
-        if (opcode == OP_PUSHDATA2 && data.size() <= 0xFF)
-            // Could have used an OP_PUSHDATA1.
-            return false;
-        if (opcode == OP_PUSHDATA4 && data.size() <= 0xFFFF)
-            // Could have used an OP_PUSHDATA2.
-            return false;
-    }
-    return true;
-}
-
-class CScriptVisitor : public boost::static_visitor<bool>
-{
-private:
-    CScript *script;
-public:
-    CScriptVisitor(CScript *scriptin) { script = scriptin; }
-
-    bool operator()(const CNoDestination &dest) const {
-        script->clear();
-        return false;
-    }
-
-    bool operator()(const CKeyID &keyID) const {
-        script->clear();
-        *script << OP_DUP << OP_HASH160 << keyID << OP_EQUALVERIFY << OP_CHECKSIG;
-        return true;
-    }
-
-    bool operator()(const CScriptID &scriptID) const {
-        script->clear();
-        *script << OP_HASH160 << scriptID << OP_EQUAL;
-        return true;
-    }
-};
-
-void CScript::SetDestination(const CTxDestination& dest)
-{
-    boost::apply_visitor(CScriptVisitor(this), dest);
-}
-
-void CScript::SetMultisig(int nRequired, const std::vector<CPubKey>& keys)
-{
-    this->clear();
-
-    *this << EncodeOP_N(nRequired);
-    BOOST_FOREACH(const CPubKey& key, keys)
-        *this << key;
-    *this << EncodeOP_N(keys.size()) << OP_CHECKMULTISIG;
-}
-
-bool CScriptCompressor::IsToKeyID(CKeyID &hash) const
-{
-    if (script.size() == 25 && script[0] == OP_DUP && script[1] == OP_HASH160
-                            && script[2] == 20 && script[23] == OP_EQUALVERIFY
-                            && script[24] == OP_CHECKSIG) {
-        memcpy(&hash, &script[3], 20);
-        return true;
-    }
-    return false;
-}
-
-bool CScriptCompressor::IsToScriptID(CScriptID &hash) const
-{
-    if (script.size() == 23 && script[0] == OP_HASH160 && script[1] == 20
-                            && script[22] == OP_EQUAL) {
-        memcpy(&hash, &script[2], 20);
-        return true;
-    }
-    return false;
-}
-
-bool CScriptCompressor::IsToPubKey(CPubKey &pubkey) const
-{
-    if (script.size() == 35 && script[0] == 33 && script[34] == OP_CHECKSIG
-                            && (script[1] == 0x02 || script[1] == 0x03)) {
-        pubkey.Set(&script[1], &script[34]);
-        return true;
-    }
-    if (script.size() == 67 && script[0] == 65 && script[66] == OP_CHECKSIG
-                            && script[1] == 0x04) {
-        pubkey.Set(&script[1], &script[66]);
-        return pubkey.IsFullyValid(); // if not fully valid, a case that would not be compressible
-    }
-    return false;
-}
-
-bool CScriptCompressor::Compress(std::vector<unsigned char> &out) const
-{
-    CKeyID keyID;
-    if (IsToKeyID(keyID)) {
-        out.resize(21);
-        out[0] = 0x00;
-        memcpy(&out[1], &keyID, 20);
-        return true;
-    }
-    CScriptID scriptID;
-    if (IsToScriptID(scriptID)) {
-        out.resize(21);
-        out[0] = 0x01;
-        memcpy(&out[1], &scriptID, 20);
-        return true;
-    }
-    CPubKey pubkey;
-    if (IsToPubKey(pubkey)) {
-        out.resize(33);
-        memcpy(&out[1], &pubkey[1], 32);
-        if (pubkey[0] == 0x02 || pubkey[0] == 0x03) {
-            out[0] = pubkey[0];
-            return true;
-        } else if (pubkey[0] == 0x04) {
-            out[0] = 0x04 | (pubkey[64] & 0x01);
-            return true;
-        }
-    }
-    return false;
-}
-
-unsigned int CScriptCompressor::GetSpecialSize(unsigned int nSize) const
-{
-    if (nSize == 0 || nSize == 1)
-        return 20;
-    if (nSize == 2 || nSize == 3 || nSize == 4 || nSize == 5)
-        return 32;
-    return 0;
-}
-
-bool CScriptCompressor::Decompress(unsigned int nSize, const std::vector<unsigned char> &in)
-{
-    switch(nSize) {
-    case 0x00:
-        script.resize(25);
-        script[0] = OP_DUP;
-        script[1] = OP_HASH160;
-        script[2] = 20;
-        memcpy(&script[3], &in[0], 20);
-        script[23] = OP_EQUALVERIFY;
-        script[24] = OP_CHECKSIG;
-        return true;
-    case 0x01:
-        script.resize(23);
-        script[0] = OP_HASH160;
-        script[1] = 20;
-        memcpy(&script[2], &in[0], 20);
-        script[22] = OP_EQUAL;
-        return true;
-    case 0x02:
-    case 0x03:
-        script.resize(35);
-        script[0] = 33;
-        script[1] = nSize;
-        memcpy(&script[2], &in[0], 32);
-        script[34] = OP_CHECKSIG;
-        return true;
-    case 0x04:
-    case 0x05:
-        unsigned char vch[33] = {};
-        vch[0] = nSize - 2;
-        memcpy(&vch[1], &in[0], 32);
-        CPubKey pubkey(&vch[0], &vch[33]);
-        if (!pubkey.Decompress())
-            return false;
-        assert(pubkey.size() == 65);
-        script.resize(67);
-        script[0] = 65;
-        memcpy(&script[1], pubkey.begin(), 65);
-        script[66] = OP_CHECKSIG;
-        return true;
-    }
-    return false;
-}