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CreateTransaction stores destination blinding keys,factors, and amounts

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instagibbs 2016-06-07 14:51:47 -04:00 • committed by Gregory Sanders
parent 7acb86cf8b
commit e30340a8d6
4 changed files with 49 additions and 7 deletions
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11
src/blind.cpp
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@ -60,7 +60,7 @@ bool UnblindOutput(const CKey &key, const CTxOut& txout, CAmount& amount_out, ui
}
}
bool BlindOutputs(const std::vector<uint256 >& input_blinding_factors, const std::vector<uint256 >& output_blinding_factors, const std::vector<CPubKey>& output_pubkeys, CMutableTransaction& tx)
bool BlindOutputs(const std::vector<uint256 >& input_blinding_factors, std::vector<uint256 >& output_blinding_factors, const std::vector<CPubKey>& output_pubkeys, CMutableTransaction& tx)
{
assert(tx.vout.size() == output_blinding_factors.size());
assert(tx.vout.size() == output_pubkeys.size());
@ -84,10 +84,10 @@ bool BlindOutputs(const std::vector<uint256 >& input_blinding_factors, const std
//Number of outputs to newly blind
int nToBlind = 0;
for (size_t nOut = 0; nOut < tx.vout.size(); nOut++) {
assert((output_blinding_factors[nOut] != uint256()) == !tx.vout[nOut].nValue.IsAmount());
if (output_blinding_factors[nOut] != uint256()) {
blindptrs.push_back(output_blinding_factors[nOut].begin());
nBlindsOut++;
assert((output_blinding_factors[nOut] != uint256()) == !tx.vout[nOut].nValue.IsAmount());
if (output_blinding_factors[nOut] != uint256()) {
blindptrs.push_back(output_blinding_factors[nOut].begin());
nBlindsOut++;
} else {
if (output_pubkeys[nOut].IsValid()) {
nToBlind++;
@ -125,6 +125,7 @@ bool BlindOutputs(const std::vector<uint256 >& input_blinding_factors, const std
GetRandBytes(&blind[nBlinded][0], 32);
blindptrs.push_back(&blind[nBlinded++][0]);
}
output_blinding_factors[nOut] = uint256(std::vector<unsigned char>(blindptrs[blindptrs.size()-1], blindptrs[blindptrs.size()-1]+32));
nBlindsOut++;
// Create blinded value
CTxOutValue& value = tx.vout[nOut].nValue;