针对mysql的Php Login / Mysql检查不适用于SHA512

时间:2011-08-09 14:54:10

标签: php mysql sha sha512

目标:尝试创建登录信息。注册页面使用此命令根据输入创建用户名和密码:

注册

 <?php
$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password=""; // Mysql password 
$db_name="dbname"; // Database name 
$tbl_name="Student"; // Table name

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

/* Obliterate bad input */
$secUser = mysql_real_escape_string($_POST['reguser']);
$badpasses = $_POST['regpass'];
$salt = '~Z`!@#$%I^&*()_-+Q=}]{[\|"><';
$secPass = hash('sha512', $badpasses.$salt);

$sql= "INSERT INTO Student (uname, upass, fname, lname, email, currGrade)                VALUES('$secUser','$secPass','$_POST[regfirst]','$_POST[reglast]','$_POST[regemail]','$_POST[regclassrank]')";

$result = mysql_query($sql);
if (!$result) {
    die('Invalid query: ' . mysql_error());
}
else{
echo "Registered";
}

?>

的login.php

<?php
ob_start();
$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password=""; // Mysql password 
$db_name="dbname"; // Database name 
$tbl_name="Student"; // Table name

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");

// Define $myusername and $mypassword 
$salt = '~Z`!@#$%I^&*()_-+Q=}]{[\|"><';
$myusername = $_POST['uname']; 
$mypassword = $_POST['upass'];
$mypassword = hash('sha512', $mypassword.$salt);

$sql = "SELECT * FROM $tbl_name WHERE uname = '$myusername' AND upass = '$mypassword')";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("regduser");
session_register("regdpass"); 
header("location:login_success.php");
}
else {
echo "$mypassword<br />";
echo "Wrong Username or Password";
}

ob_end_flush();
?>

我得到的错误是Wrong User or Pass,但我尝试登录时的密码是:

bffbc4f94f40d0cece6774ed9ec792b03ad5362edf768d190913d033c46ad4af4e2cbe1d42134f58da402efb7d3209b7e9b62ff3e81caf6341262b24dd300e9a

数据库中用户poop和密码poop中的密码是:

4e4d252a08ac4c35c2917b4fc715fef13bac2b686c7ebc8f8256765bd584a89634df3fa455ed73c1fbec84d442f11d5e064749396dcb1c0f1525f82c1b0ea57a

为什么这些密码不同?!有人可以帮忙吗?

3 个答案:

答案 0 :(得分:2)

应该

// Define $myusername and $mypassword 
$salt = '~Z`!@#$%I^&*()_-+Q=}]{[\|"><';
$myusername = $_POST['uname']; 
$mypassword = $_POST['upass'];
$mypassword = hash('sha512', $mypassword);

不是

// Define $myusername and $mypassword 
$salt = '~Z`!@#$%I^&*()_-+Q=}]{[\|"><';
$myusername = $_POST['uname']; 
$mypassword = $_POST['upass'];
$mypassword = hash('sha512', $mypassword.$salt);

您在注册时将salt添加到密码哈希中,但在尝试登录时不会添加它。

我还强烈建议您不要直接POST到数据库查询中,而是将mysql_real_escape用于查询中使用的每个POST变量。更好的是使用准备好的陈述。

Doest有帮助吗?

答案 1 :(得分:0)

我没有看到您的登录脚本中使用“salt”的位置。也许尝试以下方法:

$mypassword = hash('sha512', $mypassword . $salt);

答案 2 :(得分:0)

您的$_POST['upass'];变量为空。检查您的表单字段是否实际上被称为upass

基于这条信息:

>> $salt = '~Z`!@#$%I^&*()_-+Q=}]{[\|"><';
'~Z`!@#$%I^&*()_-+Q=}]{[\\|"><'

>> hash('sha512', 'poop'.$salt);
'4e4d252a08ac4c35c2917b4fc715fef13bac2b686c7ebc8f8256765bd584a89634df3fa455ed73c1fbec84d442f11d5e064749396dcb1c0f1525f82c1b0ea57a'

>> hash('sha512', ''.$salt);
'bffbc4f94f40d0cece6774ed9ec792b03ad5362edf768d190913d033c46ad4af4e2cbe1d42134f58da402efb7d3209b7e9b62ff3e81caf6341262b24dd300e9a'