这很奇怪。一切都在共享服务器上正常工作，但用户注册时给出的密码完全不同。 例如，这是关于共享服务器上phpmyadmin中所有哈希密码的样子：
$P$BFLZVVoJlzQpwA3STCCmcXy.s/bRQa0
这就是它们在专用服务器上的创建方式：
$2a$08$Kdk3Zg11Va0LvAWTDacLYeqgKbojUY2Tuqtg4QXuhx/
它更长，看起来不同。我多次检查过。两个服务器上载相同的文件。这个问题的结果是，注册后用户无法登录，就好像他们输错了密码一样。
注册时，这是散列的完成方式：
$hasher = new PasswordHash(8, false);
$hash = $hasher->HashPassword($form_password1);
其中$ form_password1是用户提供的密码。
我正在使用此类进行散列和检查密码：
class PasswordHash {
var $itoa64;
var $iteration_count_log2;
var $portable_hashes;
var $random_state;
function PasswordHash($iteration_count_log2, $portable_hashes)
{
$this->itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
if ($iteration_count_log2 < 4 || $iteration_count_log2 > 31)
$iteration_count_log2 = 8;
$this->iteration_count_log2 = $iteration_count_log2;
$this->portable_hashes = $portable_hashes;
$this->random_state = microtime();
if (function_exists('getmypid'))
$this->random_state .= getmypid();
}
function get_random_bytes($count)
{
$output = '';
if (is_readable('/dev/urandom') &&
($fh = @fopen('/dev/urandom', 'rb'))) {
$output = fread($fh, $count);
fclose($fh);
}
if (strlen($output) < $count) {
$output = '';
for ($i = 0; $i < $count; $i += 16) {
$this->random_state =
md5(microtime() . $this->random_state);
$output .=
pack('H*', md5($this->random_state));
}
$output = substr($output, 0, $count);
}
return $output;
}
function encode64($input, $count)
{
$output = '';
$i = 0;
do {
$value = ord($input[$i++]);
$output .= $this->itoa64[$value & 0x3f];
if ($i < $count)
$value |= ord($input[$i]) << 8;
$output .= $this->itoa64[($value >> 6) & 0x3f];
if ($i++ >= $count)
break;
if ($i < $count)
$value |= ord($input[$i]) << 16;
$output .= $this->itoa64[($value >> 12) & 0x3f];
if ($i++ >= $count)
break;
$output .= $this->itoa64[($value >> 18) & 0x3f];
} while ($i < $count);
return $output;
}
function gensalt_private($input)
{
$output = '$P$';
$output .= $this->itoa64[min($this->iteration_count_log2 +
((PHP_VERSION >= '5') ? 5 : 3), 30)];
$output .= $this->encode64($input, 6);
return $output;
}
function crypt_private($password, $setting)
{
$output = '*0';
if (substr($setting, 0, 2) == $output)
$output = '*1';
$id = substr($setting, 0, 3);
# We use "$P$", phpBB3 uses "$H$" for the same thing
if ($id != '$P$' && $id != '$H$')
return $output;
$count_log2 = strpos($this->itoa64, $setting[3]);
if ($count_log2 < 7 || $count_log2 > 30)
return $output;
$count = 1 << $count_log2;
$salt = substr($setting, 4, 8);
if (strlen($salt) != 8)
return $output;
# We're kind of forced to use MD5 here since it's the only
# cryptographic primitive available in all versions of PHP
# currently in use. To implement our own low-level crypto
# in PHP would result in much worse performance and
# consequently in lower iteration counts and hashes that are
# quicker to crack (by non-PHP code).
if (PHP_VERSION >= '5') {
$hash = md5($salt . $password, TRUE);
do {
$hash = md5($hash . $password, TRUE);
} while (--$count);
} else {
$hash = pack('H*', md5($salt . $password));
do {
$hash = pack('H*', md5($hash . $password));
} while (--$count);
}
$output = substr($setting, 0, 12);
$output .= $this->encode64($hash, 16);
return $output;
}
function gensalt_extended($input)
{
$count_log2 = min($this->iteration_count_log2 + 8, 24);
# This should be odd to not reveal weak DES keys, and the
# maximum valid value is (2**24 - 1) which is odd anyway.
$count = (1 << $count_log2) - 1;
$output = '_';
$output .= $this->itoa64[$count & 0x3f];
$output .= $this->itoa64[($count >> 6) & 0x3f];
$output .= $this->itoa64[($count >> 12) & 0x3f];
$output .= $this->itoa64[($count >> 18) & 0x3f];
$output .= $this->encode64($input, 3);
return $output;
}
function gensalt_blowfish($input)
{
# This one needs to use a different order of characters and a
# different encoding scheme from the one in encode64() above.
# We care because the last character in our encoded string will
# only represent 2 bits. While two known implementations of
# bcrypt will happily accept and correct a salt string which
# has the 4 unused bits set to non-zero, we do not want to take
# chances and we also do not want to waste an additional byte
# of entropy.
$itoa64 = './ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
$output = '$2a$';
$output .= chr(ord('0') + $this->iteration_count_log2 / 10);
$output .= chr(ord('0') + $this->iteration_count_log2 % 10);
$output .= '$';
$i = 0;
do {
$c1 = ord($input[$i++]);
$output .= $itoa64[$c1 >> 2];
$c1 = ($c1 & 0x03) << 4;
if ($i >= 16) {
$output .= $itoa64[$c1];
break;
}
$c2 = ord($input[$i++]);
$c1 |= $c2 >> 4;
$output .= $itoa64[$c1];
$c1 = ($c2 & 0x0f) << 2;
$c2 = ord($input[$i++]);
$c1 |= $c2 >> 6;
$output .= $itoa64[$c1];
$output .= $itoa64[$c2 & 0x3f];
} while (1);
return $output;
}
function HashPassword($password)
{
$random = '';
if (CRYPT_BLOWFISH == 1 && !$this->portable_hashes) {
$random = $this->get_random_bytes(16);
$hash =
crypt($password, $this->gensalt_blowfish($random));
if (strlen($hash) == 60)
return $hash;
}
if (CRYPT_EXT_DES == 1 && !$this->portable_hashes) {
if (strlen($random) < 3)
$random = $this->get_random_bytes(3);
$hash =
crypt($password, $this->gensalt_extended($random));
if (strlen($hash) == 20)
return $hash;
}
if (strlen($random) < 6)
$random = $this->get_random_bytes(6);
$hash =
$this->crypt_private($password,
$this->gensalt_private($random));
if (strlen($hash) == 34)
return $hash;
# Returning '*' on error is safe here, but would _not_ be safe
# in a crypt(3)-like function used _both_ for generating new
# hashes and for validating passwords against existing hashes.
return '*';
}
function CheckPassword($password, $stored_hash)
{
$hash = $this->crypt_private($password, $stored_hash);
if ($hash[0] == '*')
$hash = crypt($password, $stored_hash);
return $hash == $stored_hash;
}
}
这是用户尝试登录时验证的方式：
$number_of_rows=checkpass();
如果$number_of_rows==1，则用户已登录。
function checkpass()
{
global $username, $password, $database, $host;
try {
$conn = new PDO("mysql:host=$host;dbname=$database", $username, $password, array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage(); //Oops, something went wrong page
$goto = "error";
$server_dir = $_SERVER['HTTP_HOST'] . rtrim(dirname($_SERVER['PHP_SELF']), '/\\') . '/';
header('Location: http://' . $server_dir . $goto);
exit();
}
echo $conn->errorCode();
echo $conn->errorInfo();
//LOGIN WITH HASH
$hasher = new PasswordHash(8, false);
$stored_hash="*";
$user = $_POST['username'];
$pass = $_POST['password'];
echo 'username: ' . $user . '<br>'; //myname
echo 'password: ' . $pass . '<br>'; //mypass
$error = '';
if ($user == '') $error = 'Wrong username or password!';
if ($pass == '') $error = 'Wrong username or password!';
try {
$stmt = $conn->prepare("SELECT PASSWORD, CONFIRMED FROM REG_USERS WHERE USERNAME=? LIMIT 1");
$stmt->execute(array($user));
$row = $stmt->fetchAll(PDO::FETCH_ASSOC);
echo '<br>most jon<br>';
foreach ($row as $row2)
{
$confirmed = $row2['CONFIRMED'];
$stored_hash = $row2['PASSWORD'];
echo '<br>stored_hash1: '.$stored_hash.'<br>';
}
} catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage(); //Oops, something went wrong page
$goto = "error";
$server_dir = $_SERVER['HTTP_HOST'] . rtrim(dirname($_SERVER['PHP_SELF']), '/\\') . '/';
header('Location: http://' . $server_dir . $goto);
exit();
}
echo 'user: '.$user.'<br>';
echo 'savedpass: '.$stored_hash.'<br>';
echo 'pass: '.$pass.'<br>';
//exit();
$check = $hasher->CheckPassword($pass, $stored_hash);
if ($confirmed == 'Yes')
{
if ($check) {
echo 'passwords matched! show account dashboard or something';
return 1;
} else {
echo 'passwords didn’t match, show an error';
return 0;
}
}
else if ($confirmed == 'No')
{
return 2;
}
}
0。 我现在处于死胡同，我不知道散列如何在两个不同的服务器中创建两种不同类型的散列密码。顺便说一句，这应该是常见的，我对不同的哈希完全没问题，但为什么我无法以新的注册登录？
注意：由于数据库最初是从一台服务器复制到另一台服务器，因此我可以使用在共享服务器上创建的帐户登录。但我无法登录我在专用服务器上创建的那些。
答案 0 :(得分：1)
看起来您的salt是基于服务器PHP版本生成的。确保两个服务器都是相同的版本（PHP）。
答案 1 :(得分：0)
确保两台服务器使用相同的散列算法。
此代码似乎可以打开任何可用的代码。它使用河豚，否则DES，否则定制（？）
答案 2 :(得分：0)
第二个字符串是使用blowfish生成的（请参阅php.net/manual/en/function.crypt.php），第一个是我不知道的事情。
Blowfish算法是在PHP 5.3.7中引入的，因此如果您在一台服务器上使用5.2.17而在另一台服务器上使用5.3.10，那么您的哈希方法使用回退算法。
解决方案：更新您的PHP版本！它是2013年，你现在仍在使用一个已经死亡4年（！）年的版本。这真的很糟糕。