1 files changed, 29 insertions, 0 deletions
diff --git a/include/Encryption.hpp b/include/Encryption.hpp
new file mode 100644
index 0000000..b70687d
--- /dev/null
+++ b/include/Encryption.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+/*
+ * Encrypts/decrypts data using xchacha20
+ */
+
+#include <string>
+
+namespace odhtdb
+{
+    const int NONCE_BYTE_SIZE = 24;
+    
+    struct EncryptedData
+    {
+        char nonce[NONCE_BYTE_SIZE];
+        std::string data;
+    };
+    
+    using EncryptionKey = char[32];
+    
+    // Stores randomly generated encryption key in @output
+    void generateEncryptionKey(EncryptionKey *output);
+    
+    // Returns 0 on success, storing encrypted data in @output
+    int encrypt(EncryptedData *output, const EncryptionKey *key, const void *data, size_t dataSize);
+    
+    // Returns 0 on success, storing decrypted data in @output
+    int decrypt(std::string *output, const EncryptionKey *key, const EncryptedData *encryptedData);
+}