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();

headers/encrypt.h

@@ -0,0 +1,15 @@
+#ifndef ENCRYPT_H
+#define ENCRYPT_H
+#pragma once
+
+#include <string>
+#include <cstring>
+#include <sodium.h>
+#include <iostream>
+
+using std::string;
+
+string hash_password(string password);
+bool verify_password(string hashed_password, string unhashed_password);
+
+#endif