Method WalletBlindPSBT

src/wallet/wallet.cpp:1984–2018

}

BlindingStatus CWallet::WalletBlindPSBT(PartiallySignedTransaction& psbtx) const
{
    // Gather our input data
    LOCK(cs_wallet);
    std::map<uint32_t, std::tuple<CAmount, CAsset, uint256, uint256>> our_input_data;
    std::map<uint32_t, std::pair<CKey, CKey>> our_issuances_to_blind;
    for (unsigned int i = 0; i < psbtx.inputs.size(); ++i) {
        PSBTInput& input = psbtx.inputs[i];

        if (input.m_peg_in_value && !input.m_peg_in_claim_script.empty()) {
            if (!this->IsMine(CTxOut(Params().GetConsensus().pegged_asset, *input.m_peg_in_value, input.m_peg_in_claim_script))) continue;
            our_input_data[i] = std::make_tuple(*input.m_peg_in_value, Params().GetConsensus().pegged_asset, uint256(), uint256());
        } else {
            if (!InputIsMine(*this, COutPoint(input.prev_txid, *input.prev_out))) continue;
            const CWalletTx* wtx = GetWalletTx(input.prev_txid);
            if (!wtx) continue;
            CPubKey blinding_pubkey;
            CAmount amount;
            uint256 value_blinder;
            CAsset asset;
            uint256 asset_blinder;
            wtx->GetNonIssuanceBlindingData(*this, *input.prev_out, &blinding_pubkey, &amount, &value_blinder, &asset, &asset_blinder);
            our_input_data[i] = std::make_tuple(amount, asset, asset_blinder, value_blinder);
        }

        // Blind issuances on our inputs if at least one commitment was provided.
        if (input.m_issuance_value_commitment.IsCommitment() || input.m_issuance_inflation_keys_commitment.IsCommitment()) {
            CScript blinding_script(CScript() << OP_RETURN << std::vector<unsigned char>(input.prev_txid.begin(), input.prev_txid.end()) << *input.prev_out);
            our_issuances_to_blind[i] = std::make_pair(GetBlindingKey(&blinding_script), GetBlindingKey(&blinding_script));
        }
    }

    // Blind the PSBT
    return BlindPSBT(psbtx, our_input_data, our_issuances_to_blind);
}
TransactionError CWallet::SignPSBT(PartiallySignedTransaction& psbtx, bool& complete, int sighash_type, bool sign, bool imbalance_ok, bool bip32derivs, size_t* n_signed, bool finalize) const
{
    LOCK(cs_wallet);