Found cryptography library that was very easy to install.

Have hashing and verification functs ready.

headers/data.h

@@ -2,6 +2,8 @@
 #define DATA_H
 #pragma once
 #include "../thirdparty/SQLiteCpp/include/SQLiteCpp/SQLiteCpp.h"
+#include "encrypt.h"
+
 namespace data {
 SQLite::Database
 start_db();