コード例 #1
0
ファイル: qcacryptointerface.cpp プロジェクト: czeidler/fejoa
WP::err QCACryptoInterface::decryptAsymmetric(const QByteArray &input, QByteArray &plain,
                                 const QString &privateKey, const SecureArray &keyPassword,
                                 const QString &certificate)
{
    QCA::PrivateKey privKey;
    QCA::ConvertResult convRes;
    privKey = QCA::PrivateKey::fromPEM(privateKey, keyPassword, &convRes);
    if (convRes != QCA::ConvertGood) {
        std::cout << "Sorry, could not import Private Key" << std::endl;
        return (WP::err)convRes;
    }

    // Read in a matching public key cert
    // you could also build this using the fromPEMFile() method
    QCA::Certificate pubCert = QCA::Certificate::fromPEM(certificate, &convRes);
    if (convRes != QCA::ConvertGood) {
        std::cout << "Sorry, could not import public key certificate" << std::endl;
        return (WP::err)convRes;
    }
    // We are building the certificate into a SecureMessageKey object, via a
    // CertificateChain
    QCA::CertificateChain chain;
    chain += pubCert;

    QCA::SecureMessageKeyList skeys;
    QCA::SecureMessageKey skey;
    skey.setX509CertificateChain(chain);
    skey.setX509PrivateKey(privKey);
    skeys += skey;
    QCA::CMS sms;
    sms.setPrivateKeys(skeys);

    QCA::SecureMessage decryptedMessage(&sms);
    decryptedMessage.startDecrypt();
    decryptedMessage.update(input);
    decryptedMessage.end();
    decryptedMessage.waitForFinished(-1);

    plain = decryptedMessage.read();
    return WP::kOk;
}
コード例 #2
0
ファイル: qcacryptointerface.cpp プロジェクト: czeidler/fejoa
WP::err QCACryptoInterface::encyrptAsymmetric(const QByteArray &input, QByteArray &encrypted,
                                 const QString &certificate)
{
    // Read in a matching public key cert
    // you could also build this using the fromPEMFile() method
    QCA::ConvertResult convRes;
    QCA::Certificate pubCert = QCA::Certificate::fromPEM(certificate, &convRes);
    if (convRes != QCA::ConvertGood) {
        std::cout << "Sorry, could not import public key certificate" << std::endl;
        return (WP::err)convRes;
    }
    // We are building the certificate into a SecureMessageKey object, via a
    // CertificateChain
    QCA::SecureMessageKey secMsgKey;
    QCA::CertificateChain chain;
    chain += pubCert;
    secMsgKey.setX509CertificateChain(chain);

    // build up a SecureMessage object, based on our public key certificate
    QCA::CMS cms;
    QCA::SecureMessage msg(&cms);
    msg.setRecipient(secMsgKey);

    // Now use the SecureMessage object to encrypt the plain text.
    msg.startEncrypt();
    msg.update(input);
    msg.end();
    // I think it is reasonable to wait for 1 second for this
    msg.waitForFinished(1000);

    // check to see if it worked
    if(!msg.success()) {
        std::cout << "Error encrypting: " << msg.errorCode() << std::endl;
        return (WP::err)msg.errorCode();
    }

    // get the result
    encrypted = msg.read();
    return WP::kOk;
}
コード例 #3
0
ファイル: publickeyexample.cpp プロジェクト: digideskio/qca
int main(int argc, char** argv)
{
    // the Initializer object sets things up, and
    // also does cleanup when it goes out of scope
    QCA::Initializer init;

    QCoreApplication app(argc, argv);

    // We need to ensure that we have certificate handling support
    if ( !QCA::isSupported( "cert" ) ) {
	std::cout << "Sorry, no PKI certificate support" << std::endl;
    	return 1;
    }

    // Read in a private key
    QCA::PrivateKey privKey;
    QCA::ConvertResult convRes;
    QCA::SecureArray passPhrase = "start";
    privKey = QCA::PrivateKey::fromPEMFile( "Userkey.pem", passPhrase, &convRes );
    if ( convRes != QCA::ConvertGood ) {
	std::cout << "Sorry, could not import Private Key" << std::endl;
	return 1;
    }

    // Read in a matching public key cert
    // you could also build this using the fromPEMFile() method
    QCA::Certificate pubCert( "User.pem" );
    if ( pubCert.isNull() ) {
	std::cout << "Sorry, could not import public key certificate" << std::endl;
	return 1;
    }
    // We are building the certificate into a SecureMessageKey object, via a
    // CertificateChain
    QCA::SecureMessageKey secMsgKey;
    QCA::CertificateChain chain;
    chain += pubCert;
    secMsgKey.setX509CertificateChain( chain );

    // build up a SecureMessage object, based on our public key certificate
    QCA::CMS cms;
    QCA::SecureMessage msg(&cms);
    msg.setRecipient(secMsgKey);

    // Some plain text - we use the first command line argument if provided
    QByteArray plainText = (argc >= 2) ? argv[1] : "What do ya want for nuthin'";

    // Now use the SecureMessage object to encrypt the plain text.
    msg.startEncrypt();
    msg.update(plainText);
    msg.end();
    // I think it is reasonable to wait for 1 second for this
    msg.waitForFinished(1000);

    // check to see if it worked
    if(!msg.success())
    {
	std::cout << "Error encrypting: " << msg.errorCode() << std::endl;
	return 1;
    }

    // get the result
    QCA::SecureArray cipherText = msg.read();
    QCA::Base64 enc;
    std::cout << plainText.data() << " encrypts to (in base 64): ";
    std::cout << qPrintable( enc.arrayToString( cipherText ) ) << std::endl;

    // Show we can decrypt it with the private key
    if ( !privKey.canDecrypt() ) {
	std::cout << "Private key cannot be used to decrypt" << std::endl;
	return 1;
    }
    QCA::SecureArray plainTextResult;
    if ( 0 == privKey.decrypt(cipherText, &plainTextResult, QCA::EME_PKCS1_OAEP ) ) {
	std::cout << "Decryption process failed" << std::endl;
	return 1;
    }

    std::cout << qPrintable( enc.arrayToString( cipherText ) );
    std::cout << " (in base 64) decrypts to: ";
    std::cout << plainTextResult.data() << std::endl;

    return 0;
}