Errors printout define moved to wallet.h
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@@ -16,30 +16,29 @@
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#include "CCdice.h"
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#include "CCdice.h"
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extern std::string CCerror;
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extern std::string CCerror;
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#define ERR_RESULT(x) result.push_back(Pair("result", "error")) , result.push_back(Pair("error", x));
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// timeout
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// timeout
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/*
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/*
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in order to implement a dice game, we need a source of entropy, reasonably fast completion time and a way to manage the utxos.
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in order to implement a dice game, we need a source of entropy, reasonably fast completion time and a way to manage the utxos.
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1. CC vout locks "house" funds with hash(entropy)
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1. CC vout locks "house" funds with hash(entropy)
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2. bettor submits bet, with entropy, odds, houseid and sends combined amount into another CC vout.
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2. bettor submits bet, with entropy, odds, houseid and sends combined amount into another CC vout.
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3. house account sends funds to winner/loser with proof of entropy
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3. house account sends funds to winner/loser with proof of entropy
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4. if timeout, bettor gets refund
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4. if timeout, bettor gets refund
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2. and 3. can be done in mempool
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2. and 3. can be done in mempool
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The house commits to an entropy value by including the hash of the entropy value in the 'E' transaction.
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The house commits to an entropy value by including the hash of the entropy value in the 'E' transaction.
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To bet, one of these 'E' transactions is used as the first input and its hashed entropy is combined with the unhashed entropy attached to the bet 'B' transaction.
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To bet, one of these 'E' transactions is used as the first input and its hashed entropy is combined with the unhashed entropy attached to the bet 'B' transaction.
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The house node monitors the 'B' transactions and if it sees one of its own, it creates either a winner 'W' or loser 'L' transaction, with proof of hash of entropy.
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The house node monitors the 'B' transactions and if it sees one of its own, it creates either a winner 'W' or loser 'L' transaction, with proof of hash of entropy.
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In the even the house node doesnt respond before timeoutblocks, then anybody (including bettor) can undo the bet with funds going back to the house and bettor
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In the even the house node doesnt respond before timeoutblocks, then anybody (including bettor) can undo the bet with funds going back to the house and bettor
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In order for people to play dice, someone (anyone) needs to create a funded dice plan and addfunding with enough utxo to allow players to find one.
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In order for people to play dice, someone (anyone) needs to create a funded dice plan and addfunding with enough utxo to allow players to find one.
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createfunding:
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createfunding:
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vins.*: normal inputs
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vins.*: normal inputs
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vout.0: CC vout for funding
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vout.0: CC vout for funding
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@@ -73,7 +72,7 @@ loser:
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vout.1: tag to owner address for entropy funds
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vout.1: tag to owner address for entropy funds
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vout.2: change to fundingpk
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vout.2: change to fundingpk
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vout.n-1: opreturn 'L' sbits fundingtxid hentropy proof
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vout.n-1: opreturn 'L' sbits fundingtxid hentropy proof
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winner:
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winner:
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same as loser, but vout.2 is winnings
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same as loser, but vout.2 is winnings
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vout.3: change to fundingpk
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vout.3: change to fundingpk
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@@ -81,12 +80,12 @@ winner:
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timeout:
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timeout:
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same as winner, just without hentropy or proof
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same as winner, just without hentropy or proof
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WARNING: there is an attack vector that precludes betting any large amounts, it goes as follows:
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WARNING: there is an attack vector that precludes betting any large amounts, it goes as follows:
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1. do dicebet to get the house entropy revealed
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1. do dicebet to get the house entropy revealed
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2. calculate bettor entropy that would win against the house entropy
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2. calculate bettor entropy that would win against the house entropy
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3. reorg the chain and make a big bet using the winning entropy calculated in 2.
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3. reorg the chain and make a big bet using the winning entropy calculated in 2.
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In order to mitigate this, the disclosure of the house entropy needs to be delayed beyond a reasonable reorg depth (notarization). It is recommended for production dice game with significant amounts of money to use such a delayed disclosure method.
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In order to mitigate this, the disclosure of the house entropy needs to be delayed beyond a reasonable reorg depth (notarization). It is recommended for production dice game with significant amounts of money to use such a delayed disclosure method.
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*/
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*/
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@@ -38,7 +38,6 @@
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#include <numeric>
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#include <numeric>
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#define ERR_RESULT(x) result.push_back(Pair("result", "error")) , result.push_back(Pair("error", x));
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using namespace std;
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using namespace std;
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@@ -119,9 +118,9 @@ string AccountFromValue(const UniValue& value)
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return strAccount;
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return strAccount;
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}
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}
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char *komodo_chainname()
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char *komodo_chainname()
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{
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{
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return(ASSETCHAINS_SYMBOL[0] == 0 ? (char *)"KMD" : ASSETCHAINS_SYMBOL);
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return(ASSETCHAINS_SYMBOL[0] == 0 ? (char *)"KMD" : ASSETCHAINS_SYMBOL);
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}
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}
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UniValue getnewaddress(const UniValue& params, bool fHelp)
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UniValue getnewaddress(const UniValue& params, bool fHelp)
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@@ -4567,7 +4566,7 @@ int32_t komodo_notaryvin(CMutableTransaction &txNew,uint8_t *notarypub33)
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utxovout = out.i;
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utxovout = out.i;
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best_scriptPubKey = out.tx->vout[out.i].scriptPubKey;
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best_scriptPubKey = out.tx->vout[out.i].scriptPubKey;
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//fprintf(stderr,"check %s/v%d %llu\n",(char *)utxotxid.GetHex().c_str(),utxovout,(long long)utxovalue);
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//fprintf(stderr,"check %s/v%d %llu\n",(char *)utxotxid.GetHex().c_str(),utxovout,(long long)utxovalue);
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txNew.vin.resize(1);
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txNew.vin.resize(1);
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txNew.vout.resize(1);
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txNew.vout.resize(1);
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txfee = utxovalue / 2;
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txfee = utxovalue / 2;
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@@ -5779,5 +5778,3 @@ UniValue getbalance64(const UniValue& params, bool fHelp)
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ret.push_back(Pair("notstaking", b));
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ret.push_back(Pair("notstaking", b));
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return ret;
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return ret;
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}
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}
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@@ -1148,7 +1148,7 @@ public:
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int minDepth=1,
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int minDepth=1,
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bool ignoreSpent=true,
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bool ignoreSpent=true,
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bool ignoreUnspendable=true);
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bool ignoreUnspendable=true);
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};
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};
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/** A key allocated from the key pool. */
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/** A key allocated from the key pool. */
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@@ -1204,4 +1204,8 @@ public:
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READWRITE(vchPubKey);
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READWRITE(vchPubKey);
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}
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}
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};
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};
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/** Error status printout */
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#define ERR_RESULT(x) result.push_back(Pair("result", "error")) , result.push_back(Pair("error", x));
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#endif // BITCOIN_WALLET_WALLET_H
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#endif // BITCOIN_WALLET_WALLET_H
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