Secure settings rework

client/3rd/QSimpleCrypto/include/QAead.h

@@ -0,0 +1,87 @@
+/**
+ * Copyright 2021 BrutalWizard (https://github.com/bru74lw1z4rd). All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution
+**/
+
+#ifndef QAEAD_H
+#define QAEAD_H
+
+#include "QSimpleCrypto_global.h"
+
+#include <QObject>
+
+#include <memory>
+
+#include <openssl/aes.h>
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+
+#include "QCryptoError.h"
+
+// clang-format off
+namespace QSimpleCrypto
+{
+    class QSIMPLECRYPTO_EXPORT QAead {
+    public:
+        QAead();
+
+        ///
+        /// \brief encryptAesGcm - Function encrypts data with Gcm algorithm.
+        /// \param data - Data that will be encrypted.
+        /// \param key - AES key.
+        /// \param iv - Initialization vector.
+        /// \param tag - Authorization tag.
+        /// \param aad - Additional authenticated data. Must be nullptr, if not used.
+        /// \param cipher - Can be used with OpenSSL EVP_CIPHER (gcm) - 128, 192, 256. Example: EVP_aes_256_gcm().
+        /// \return Returns encrypted data or "", if error happened.
+        ///
+        QByteArray encryptAesGcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_gcm());
+
+        ///
+        /// \brief decryptAesGcm - Function decrypts data with Gcm algorithm.
+        /// \param data - Data that will be decrypted
+        /// \param key - AES key
+        /// \param iv - Initialization vector
+        /// \param tag - Authorization tag
+        /// \param aad - Additional authenticated data. Must be nullptr, if not used
+        /// \param cipher - Can be used with OpenSSL EVP_CIPHER (gcm) - 128, 192, 256. Example: EVP_aes_256_gcm()
+        /// \return Returns decrypted data or "", if error happened.
+        ///
+        QByteArray decryptAesGcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_gcm());
+
+        ///
+        /// \brief encryptAesCcm - Function encrypts data with Ccm algorithm.
+        /// \param data - Data that will be encrypted.
+        /// \param key - AES key.
+        /// \param iv - Initialization vector.
+        /// \param tag - Authorization tag.
+        /// \param aad - Additional authenticated data. Must be nullptr, if not used.
+        /// \param cipher - Can be used with OpenSSL EVP_CIPHER (ccm) - 128, 192, 256. Example: EVP_aes_256_ccm().
+        /// \return Returns encrypted data or "", if error happened.
+        ///
+        QByteArray encryptAesCcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_ccm());
+
+        ///
+        /// \brief decryptAesCcm - Function decrypts data with Ccm algorithm.
+        /// \param data - Data that will be decrypted.
+        /// \param key - AES key.
+        /// \param iv - Initialization vector.
+        /// \param tag - Authorization tag.
+        /// \param aad - Additional authenticated data. Must be nullptr, if not used.
+        /// \param cipher - Can be used with OpenSSL EVP_CIPHER (ccm) - 128, 192, 256. Example: EVP_aes_256_ccm().
+        /// \return Returns decrypted data or "", if error happened.
+        ///
+        QByteArray decryptAesCcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad = "", const EVP_CIPHER* cipher = EVP_aes_256_ccm());
+
+        ///
+        /// \brief error - Error handler class.
+        ///
+        QCryptoError error;
+    };
+} // namespace QSimpleCrypto
+
+#endif // QAEAD_H