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https://github.com/QuasarApp/qca.git
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6d690c0070
Added new cmake variable SHARED_LIBRARY. By default is on. When it is off QCA library, plugins, tools, examples and unittests will be built as static. Also if is used static Qt plugins will be built as static. Tested with Qt4.
118 lines
3.9 KiB
C++
118 lines
3.9 KiB
C++
/*
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Copyright (C) 2003 Justin Karneges <justin@affinix.com>
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Copyright (C) 2005 Brad Hards <bradh@frogmouth.net>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <QtCrypto>
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#include <QCoreApplication>
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#include <iostream>
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#ifdef QT_STATICPLUGIN
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#include "import_plugins.h"
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#endif
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int main(int argc, char** argv)
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{
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// the Initializer object sets things up, and
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// also does cleanup when it goes out of scope
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QCA::Initializer init;
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QCoreApplication app(argc, argv);
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// We need to ensure that we have certificate handling support
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if ( !QCA::isSupported( "cert" ) ) {
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std::cout << "Sorry, no PKI certificate support" << std::endl;
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return 1;
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}
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// Read in a private key
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QCA::PrivateKey privKey;
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QCA::ConvertResult convRes;
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QCA::SecureArray passPhrase = "start";
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privKey = QCA::PrivateKey::fromPEMFile( "Userkey.pem", passPhrase, &convRes );
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if ( convRes != QCA::ConvertGood ) {
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std::cout << "Sorry, could not import Private Key" << std::endl;
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return 1;
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}
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// Read in a matching public key cert
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// you could also build this using the fromPEMFile() method
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QCA::Certificate pubCert( "User.pem" );
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if ( pubCert.isNull() ) {
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std::cout << "Sorry, could not import public key certificate" << std::endl;
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return 1;
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}
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// We are building the certificate into a SecureMessageKey object, via a
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// CertificateChain
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QCA::SecureMessageKey secMsgKey;
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QCA::CertificateChain chain;
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chain += pubCert;
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secMsgKey.setX509CertificateChain( chain );
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// build up a SecureMessage object, based on our public key certificate
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QCA::CMS cms;
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QCA::SecureMessage msg(&cms);
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msg.setRecipient(secMsgKey);
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// Some plain text - we use the first command line argument if provided
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QByteArray plainText = (argc >= 2) ? argv[1] : "What do ya want for nuthin'";
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// Now use the SecureMessage object to encrypt the plain text.
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msg.startEncrypt();
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msg.update(plainText);
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msg.end();
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// I think it is reasonable to wait for 1 second for this
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msg.waitForFinished(1000);
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// check to see if it worked
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if(!msg.success())
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{
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std::cout << "Error encrypting: " << msg.errorCode() << std::endl;
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return 1;
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}
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// get the result
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QCA::SecureArray cipherText = msg.read();
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QCA::Base64 enc;
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std::cout << plainText.data() << " encrypts to (in base 64): ";
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std::cout << qPrintable( enc.arrayToString( cipherText ) ) << std::endl;
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// Show we can decrypt it with the private key
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if ( !privKey.canDecrypt() ) {
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std::cout << "Private key cannot be used to decrypt" << std::endl;
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return 1;
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}
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QCA::SecureArray plainTextResult;
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if ( 0 == privKey.decrypt(cipherText, &plainTextResult, QCA::EME_PKCS1_OAEP ) ) {
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std::cout << "Decryption process failed" << std::endl;
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return 1;
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}
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std::cout << qPrintable( enc.arrayToString( cipherText ) );
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std::cout << " (in base 64) decrypts to: ";
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std::cout << plainTextResult.data() << std::endl;
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return 0;
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}
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