Simple auth program that minimally demonstrates the following:

• Console IO: get username/password from console
• File IO: store/retrieve username/password from file
• Error handling: terminate program when bad credentials are entered.

Additional functionality may include: encryption, better credential storage format, allow three login attemps before terminating program, and more.

Simple Auth is an adaption of the Login and Registration System program featured on Top 10 C++ Projects Ideas for C++ Beginners:

The project involves a user registration process by asking username and password. Upon successful registration, a user file is created with the credentials. If the user does not exist, upon login, an error will be shown.