OTP

One Time Password, AKA High security password, for secure log in systems, using Object Oriented PHP

This repository includes two important things.

1. SMS API, currently for use of only with REDSMS.In, Similar methods can be adopted though for other SMS Providers.

2. OTP Class, to generate the OTP CODE and Send it using the SMS API.

3. Further Improvements will be updated.

4. Example.php is demo file and shows a minimal example.

5. Session Class also checks WRONG OTP ATTEMPTS and therefore can be useful to block the user if he/she enters wrong OTP code more than said.

Thank You!

Contribution Matters.

EXAMPLE::::: ::::::::::::::::::::::::::

<?php																							
require_once 'core/init.php';																		
																							
if(!Input::exists()){																						
?>																						
	<form method="post" action="index.php">													
	<input type="text" maxlength="10" placeholder="Enter Mobile Number" name="mobile"><br/>	
	<input type="submit" value="Send OTP">													
	</form>																						
<?php																					
}																							
else if(Input::exists() && Input::get('mobile')!=''){
	$otp = new OTP(8,4); // defining length and strength of the OTP CODE!!
	
	//GET the OTP Code in $code;
	
	$code = $otp->getOTPCode();
	
	//Form the contents of the text message that needs to be send!
	
	$message = "Your OTP is : $code ";
	
	if($otp->send(Input::get('mobile'), $message) && Session::loginAttempt('OTP')){					
			Session::put('OTP Sending', 'OTP Sent Successfully');							
			Redirect::to('example.php');		
	}
	else{																					
			echo "OTP Sending Error ... login attempt = " . Session::loginAttempts('OTP');	
	}																					
}																							
if(Session::exists('OTP Sending')){																
	echo Session::get('OTP Sending') . "<br/>";												
	Session::delete('OTP Sending');															
	if(Session::loginAttempts('OTP')){														
		?>																					
    	<form action="example.php" method="post">													
    	<input type="text" maxlength="8" placeholder="Enter OTP Here" name="OTP_response_code"> 
    	<input type="submit" Value="Verify">													
    	</form>																					
    	<?php																						
		}																					
	else{																					
			echo 'You have been blocked.. contact Administrator';							
		}																					
	}																						
if(Input::exists() && Input::get('OTP_response_code')!=''){										
	$otp=new OTP();																			
	if($otp->verifyOTP(Input::get('OTP_response_code'))){									
			Session::deleteloginAttempt('OTP');												
			echo 'Yipppeeee Verified';														
		}																					
	else{																					
			Session::put('OTP Sending', 'Incorrect, Enter Again');							
			if(Session::loginAttempt('OTP')){												
					Redirect::to('index.php');												
				}																			
				
		}
}
?>