Is it possible to implement your own authorization logic in the system?

Yes, it is possible to implement custom authentication logic in the system. This is often done when standard mechanisms do not meet specific requirements.

To implement custom authentication, you typically need to:

• Define how to store and verify credentials (login, password, tokens).
• Implement access rights verification for resources.
• Ensure secure storage of passwords (for example, using hashing and salting).
• Organize a session or token mechanism to maintain authentication state.

In Android, for example, user data can be stored in a secure storage (SharedPreferences with encryption or EncryptedSharedPreferences), and for verification, you can implement your own authentication class that checks the entered data and issues tokens or sessions.

A simplified verification example:

class AuthManager {
    private val validUsers = mapOf("user1" to "password123")

    fun login(username: String, password: String): Boolean {
        val storedPassword = validUsers[username]
        return storedPassword != null && storedPassword == password
    }
}

However, it is important to consider security and use tested methods and libraries to avoid vulnerabilities.