在其他php文件中使用mcrypt_decrypt时不起作用

我正在创建一个登录名，注册用户可以使用Emailid和密码登录

我有一个表单，其中用户注册的信息是用户名、EmailID、密码等

然后，在mysql数据库中插入数据时，我正在加密密码

代码是：

<?php


    define("ENCRYPTION_KEY", "!@#$%^&*");

    $finalarray=array();


    $finalarray['UserName']= $_POST["fname"];

    $finalarray['EmailID']= $_POST['email'];
    $password = $_POST['pwd'];

   $encrypted = encryptIt( $input );
    $finalarray['Password']= $encrypted;



function encryptIt( $q ) 
{
    $cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
    $qEncoded      = base64_encode( mcrypt_encrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), $q, MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ) );
    return( $qEncoded );
}  


/* code for insert into database */


?>

<?php
include 'ConnectionDatabase.php'; /database connnection
define("ENCRYPTION_KEY", "!@#$%^&*");


ob_start();
session_start();

$username = $_POST['email'];
$password = $_POST['password'];




$connection= connection();  //connected

$username = mysql_real_escape_string($username);
$query = "SELECT  EmailID,Password
        FROM User
        WHERE EmailID = ".'$username';






$result = mysql_query($query);

if(mysql_num_rows($result) == 0) // User not found. So, redirect to login_form again.
{
   echo "Not Valid User";
   header('Location: login.html');
}



$row=mysql_fetch_array($result);

$encryptpassword=$row[1];

echo $encryptpassword."<br>";


$decrypted = decryptIt($encryptpassword);




echo $decrypted; //no value is coming




if($password != $decrypted ) // Incorrect password. So, redirect to login_form again.
{
    header('Location: login_fb.php');
}else{ // Redirect to home page after successful login.
       echo "login";
    session_regenerate_id();
    $_SESSION['sess_user_id'] = $userData['id'];
    $_SESSION['sess_username'] = $userData['username'];
    session_write_close();
    //header('Location: creatememorial.php');
}



function decryptIt( $q ) {
    $cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
    $qDecoded      = rtrim( mcrypt_decrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), base64_decode( $q ), MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ), "\0");
    return( $qDecoded );
}
?>

当用户登录时，会交叉检查数据库中的电子邮件id和密码

为此，我编写了解密函数来匹配密码，如果emailid与密码匹配，则用户将登录

代码是：

<?php


    define("ENCRYPTION_KEY", "!@#$%^&*");

    $finalarray=array();


    $finalarray['UserName']= $_POST["fname"];

    $finalarray['EmailID']= $_POST['email'];
    $password = $_POST['pwd'];

   $encrypted = encryptIt( $input );
    $finalarray['Password']= $encrypted;



function encryptIt( $q ) 
{
    $cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
    $qEncoded      = base64_encode( mcrypt_encrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), $q, MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ) );
    return( $qEncoded );
}  


/* code for insert into database */


?>

<?php
include 'ConnectionDatabase.php'; /database connnection
define("ENCRYPTION_KEY", "!@#$%^&*");


ob_start();
session_start();

$username = $_POST['email'];
$password = $_POST['password'];




$connection= connection();  //connected

$username = mysql_real_escape_string($username);
$query = "SELECT  EmailID,Password
        FROM User
        WHERE EmailID = ".'$username';






$result = mysql_query($query);

if(mysql_num_rows($result) == 0) // User not found. So, redirect to login_form again.
{
   echo "Not Valid User";
   header('Location: login.html');
}



$row=mysql_fetch_array($result);

$encryptpassword=$row[1];

echo $encryptpassword."<br>";


$decrypted = decryptIt($encryptpassword);




echo $decrypted; //no value is coming




if($password != $decrypted ) // Incorrect password. So, redirect to login_form again.
{
    header('Location: login_fb.php');
}else{ // Redirect to home page after successful login.
       echo "login";
    session_regenerate_id();
    $_SESSION['sess_user_id'] = $userData['id'];
    $_SESSION['sess_username'] = $userData['username'];
    session_write_close();
    //header('Location: creatememorial.php');
}



function decryptIt( $q ) {
    $cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
    $qDecoded      = rtrim( mcrypt_decrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), base64_decode( $q ), MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ), "\0");
    return( $qDecoded );
}
?>

echo$已解密；没有任何想法

当我在一个程序中执行此操作时，我引用了link

当我使用这两个php文件时，它不工作

我不知道是什么问题

---

有人能帮我吗

你在这方面走了很长的路

只需加密用户密码，并在数据库查询中使用加密密码

例如：

$username = $_POST['email'];
$password = $_POST['password'];

$connection = connection();

$username = mysql_real_escape_string($username);
$password = encryptIt(mysql_real_escape_string($_POST['password']));

$query = "SELECT  EmailID,Password
          FROM User
          WHERE EmailID = '".$username."' AND Password = '".$password."';

如果它返回一行，则有一个用户具有该电子邮件和该密码

作为旁注；不再推荐使用mysql_*函数-您应该切换到mysqli_*库，或者更好地使用准备好的语句

---

另外-您使用MD5生成哈希，您无法解密哈希-这是一种单向转换。

谢谢您的回复。但当我在数据库中插入密码加密FCYGGLQLFHK6J7W7XUMGWGPOJWIZLAUFI2YT5/Q68xM=并且在登录时，相同的密码是ZPR2EL6EOTXA91J9W+C/XG32j4bvk0lZ5AmcFS9vR4=我不明白问题出在哪里，请帮我解决。是的，因此，如果您加密用户在登录时输入的密码-如果密码正确，它将与数据库中的字符串匹配。密码相同。但它赋予了不同的价值。有什么问题