Initial commit

src/core/decryptor.h

@@ -0,0 +1,37 @@
+// Copyright 2019 threeSD Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <string>
+#include <vector>
+#include "common/common_types.h"
+
+class SDMCDecryptor {
+public:
+    /**
+     * Initializes the decryptor.
+     * @param root_folder Path to the "Nintendo 3DS/<ID0>/<ID1>" folder.
+     */
+    explicit SDMCDecryptor(const std::string& root_folder);
+
+    ~SDMCDecryptor();
+
+    /**
+     * Decrypts a file from the SD card and writes it into another file.
+     * @param source Path to the file relative to the root folder, starting with "/".
+     * @param destination Path to the destination file.
+     * @return true on success, false otherwise
+     */
+    bool DecryptAndWriteFile(const std::string& source, const std::string& destination) const;
+
+    /**
+     * Decrypts a file and reads it into a vector.
+     * @param source Path to the file relative to the root folder, starting with "/".
+     */
+    std::vector<u8> DecryptFile(const std::string& source) const;
+
+private:
+    std::string root_folder;
+};