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Sign JoinSplit transactions

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This commit is contained in:
Taylor Hornby
2016-05-24 15:33:41 -06:00
parent fd7c139e37
commit 6aae9d1a55
6 changed files with 132 additions and 22 deletions
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36
src/wallet/rpcwallet.cpp
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@@ -18,6 +18,8 @@
#include "walletdb.h"
#include "primitives/transaction.h"
#include "zcbenchmarks.h"
#include "key.h"
#include "script/interpreter.h"
#include <stdint.h>
@@ -2650,22 +2652,38 @@ Value zc_raw_pour(const json_spirit::Array& params, bool fHelp)
throw runtime_error("unsupported pour input/output counts");
}
// TODO: #808
uint256 pubKeyHash;
CKey joinSplitPrivKey;
joinSplitPrivKey.MakeNewKey(true);
CCompressedPubKey joinSplitPubKey(joinSplitPrivKey.GetPubKey());
CMutableTransaction mtx(tx);
mtx.nVersion = 2;
mtx.joinSplitPubKey = joinSplitPubKey;
CPourTx pourtx(*pzcashParams,
pubKeyHash,
joinSplitPubKey.GetZcashHash(),
anchor,
{vpourin[0], vpourin[1]},
{vpourout[0], vpourout[1]},
vpub_old,
vpub_new);
assert(pourtx.Verify(*pzcashParams, joinSplitPubKey.GetZcashHash()));
assert(pourtx.Verify(*pzcashParams, pubKeyHash));
CMutableTransaction mtx(tx);
mtx.nVersion = 2;
mtx.vpour.push_back(pourtx);
// TODO: #966.
static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
// Empty output script.
CScript scriptCode;
CTransaction signTx(mtx);
uint256 dataToBeSigned = SignatureHash(scriptCode, signTx, NOT_AN_INPUT, SIGHASH_ALL);
if (dataToBeSigned == one) {
throw runtime_error("SignatureHash failed");
}
// Add the signature
joinSplitPrivKey.SignCompact(dataToBeSigned, mtx.joinSplitSig);
CTransaction rawTx(mtx);
CDataStream ss(SER_NETWORK, PROTOCOL_VERSION);
@@ -2678,7 +2696,7 @@ Value zc_raw_pour(const json_spirit::Array& params, bool fHelp)
ss2 << ((unsigned char) 0x00);
ss2 << pourtx.ephemeralKey;
ss2 << pourtx.ciphertexts[0];
ss2 << pourtx.h_sig(*pzcashParams, pubKeyHash);
ss2 << pourtx.h_sig(*pzcashParams, joinSplitPubKey.GetZcashHash());
encryptedBucket1 = HexStr(ss2.begin(), ss2.end());
}
@@ -2687,7 +2705,7 @@ Value zc_raw_pour(const json_spirit::Array& params, bool fHelp)
ss2 << ((unsigned char) 0x01);
ss2 << pourtx.ephemeralKey;
ss2 << pourtx.ciphertexts[1];
ss2 << pourtx.h_sig(*pzcashParams, pubKeyHash);
ss2 << pourtx.h_sig(*pzcashParams, joinSplitPubKey.GetZcashHash());
encryptedBucket2 = HexStr(ss2.begin(), ss2.end());
}