void SignVerifyMessageDialog::on_verifyMessageButton_VM_clicked() { CBitcoinAddress addr(ui->addressIn_VM->text().toStdString()); if (!addr.IsValid()) { ui->addressIn_VM->setValid(false); ui->statusLabel_VM->setStyleSheet("QLabel { color: red; }"); ui->statusLabel_VM->setText(tr("The entered address is invalid.") + QString(" ") + tr("Please check the address and try again.")); return; } CKeyID keyID; if (!addr.GetKeyID(keyID)) { ui->addressIn_VM->setValid(false); ui->statusLabel_VM->setStyleSheet("QLabel { color: red; }"); ui->statusLabel_VM->setText(tr("The entered address does not refer to a key.") + QString(" ") + tr("Please check the address and try again.")); return; } bool fInvalid = false; std::vector<unsigned char> vchSig = DecodeBase64(ui->signatureIn_VM->text().toStdString().c_str(), &fInvalid); if (fInvalid) { ui->signatureIn_VM->setValid(false); ui->statusLabel_VM->setStyleSheet("QLabel { color: red; }"); ui->statusLabel_VM->setText(tr("The signature could not be decoded.") + QString(" ") + tr("Please check the signature and try again.")); return; } CDataStream ss(SER_GETHASH, 0); ss << strMessageMagic; ss << ui->messageIn_VM->document()->toPlainText().toStdString(); CPubKey pubkey; if (!pubkey.Recover(Hash(ss.begin(), ss.end()), vchSig)) { ui->signatureIn_VM->setValid(false); ui->statusLabel_VM->setStyleSheet("QLabel { color: red; }"); ui->statusLabel_VM->setText(tr("The signature did not match the message digest.") + QString(" ") + tr("Please check the signature and try again.")); return; } if (!(CBitcoinAddress(pubkey.GetID()) == addr)) { ui->statusLabel_VM->setStyleSheet("QLabel { color: red; }"); ui->statusLabel_VM->setText(QString("<nobr>") + tr("Message verification failed.") + QString("</nobr>")); return; } ui->statusLabel_VM->setStyleSheet("QLabel { color: green; }"); ui->statusLabel_VM->setText(QString("<nobr>") + tr("Message verified.") + QString("</nobr>")); }