mirror of
https://github.com/QuasarApp/qca.git
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121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
/*
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* Copyright (C) 2008 Michael Leupold <lemma@confuego.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include <QtCrypto>
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#include <QtPlugin>
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#include <qstringlist.h>
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#ifdef Q_OS_WIN32
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#include <wincrypt.h>
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//-----------------------------------------------------------
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class WinCryptoRandomContext : public QCA::RandomContext
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{
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public:
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WinCryptoRandomContext(QCA::Provider *p) : RandomContext(p)
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{
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}
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Context *clone() const
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{
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return new WinCryptoRandomContext(*this);
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}
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QCA::SecureArray nextBytes(int size)
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{
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QCA::SecureArray buf(size);
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HCRYPTPROV hProv;
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/* FIXME: currently loop while there's an error. */
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while (true)
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{
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// acquire the crypto context
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if (!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL,
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CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) continue;
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if (CryptGenRandom(hProv, static_cast<DWORD>(size), (BYTE*)buf.data())) {
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break;
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}
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}
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// release the crypto context
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CryptReleaseContext(hProv, 0);
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return buf;
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}
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};
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//-----------------------------------------------------------
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class WinCryptoProvider : public QCA::Provider
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{
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public:
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void init()
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{
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}
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~WinCryptoProvider()
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{
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}
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int qcaVersion() const
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{
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return QCA_VERSION;
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}
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QString name() const
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{
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return "qca-wincrypto";
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}
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QStringList features() const
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{
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QStringList list;
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list += "random";
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return list;
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}
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Context *createContext(const QString &type)
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{
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if ( type == "random" )
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return new WinCryptoRandomContext(this);
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else
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return 0;
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}
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};
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//-----------------------------------------------------------
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class WinCryptoPlugin : public QObject, public QCAPlugin
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{
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Q_OBJECT
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#if QT_VERSION >= 0x050000
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Q_PLUGIN_METADATA(IID "com.affinix.qca.Plugin/1.0")
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#endif
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Q_INTERFACES(QCAPlugin)
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public:
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virtual QCA::Provider *createProvider() { return new WinCryptoProvider; }
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};
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#if QT_VERSION < 0x050000
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#include "qca-wincrypto.moc"
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#endif
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Q_EXPORT_PLUGIN2(qca_wincrypto, WinCryptoPlugin);
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#endif // Q_OS_WIN32
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