8051 authentication system

you can give it a try

#include "uart.h"
#include "uart.c"

void delay_rony(unsigned int delay_val)
{	
	int temp = 0;
	do
		{
			temp++;
		}
		while(temp<=delay_val);
}

void main(void)
{
	//int i;
	unsigned char usr1, usr2, usr3, usr4, usr5, pass1, pass2, pass3, pass4, pass5;
	while(1)
	{
	uart_init();
start:
	uart_string("******************************\n\r");
	uart_string("  8051 AUTHENTICATION SYSTEM  \n\r");
	uart_string("******************************\n\r\n\r");
	delay_rony(50000);
	uart_string("Username: ");
	usr1 = uart_receive();
	uart_send(usr1);
	usr2 = uart_receive();
	uart_send(usr2);
	usr3 = uart_receive();
	uart_send(usr3);
	usr4 = uart_receive();
	uart_send(usr4);
	usr5 = uart_receive();
	uart_send(usr5);
		if(uart_receive() == 0x0d)
			{
				if(usr1==0x61&&usr2==0x64&&usr3==0x6d&&usr4==0x69&&usr5==0x6e)
				{
				uart_string("\n\r");
				goto passwd;
				}
				else
				{
				uart_string("\n\r\n\rInvalid User!!!\n\r");
				goto start;
				}
			}
		else
			{
				uart_string("\n\r\n\rYOU HAVE EXCEEDED MAX NUMBER OF CHARS. \n\r");
			}
		}
passwd:
	uart_string("\n\rPassword: ");
	pass1 = uart_receive();
	uart_string("*");
	pass2 = uart_receive();
	uart_string("*");
	pass3 = uart_receive();
	uart_string("*");
	pass4 = uart_receive();
	uart_string("*");
	pass5 = uart_receive();
	uart_string("*");
		if(uart_receive() == 0x0d)
			{
				if(pass1==0x61&&pass2==0x64&&pass3==0x6d&&pass4==0x69&&pass5==0x6e)
				{
				uart_string("\n\r\n\rACCESS GRANTED\n\r");
				}
				else
				{
				uart_string("\n\r\n\rInvalid Password!!!\n\r");
				goto start;
				}
			}
		else
			{
				uart_string("\n\r\n\rYOU HAVE EXCEEDED MAX NUMBER OF CHARS. \n\r");
			}
		uart_receive();

}

Hello rearthur2003

Thanks for the post.
Could you explain a bit more about how your program is used ?.

This works with serial port on baud rate 4800 once connected to you will need to authenticate yourself before doing anything, it can be added to uart based code. username is admin and password is admin. hope you like it.

good work
Why dont you make an application using this code, will be a good project and can help others too

i am working on it, i am working on something to control doors lights in the home so i can do everything from my pc so i dont get interrupted. anyways thanks for the comment