我正在使用从 android 到一些 php 脚本的 HTTP POST 来更新数据库中的用户密码。
我正在使用与用户创建帐户并且数据库更新正在运行并更改 SALT 的值时相同的 SALT 哈希值,但是当我尝试使用新密码登录时,它会出现错误。
创建密码的初始代码是:
public function storeUser($name, $email, $password, $rand) {
$uuid = uniqid('', true);
$hash = $this->hashSSHA($password);
$encrypted_password = $hash["encrypted"]; // encrypted password
$salt = $hash["salt"]; // salt
$auth = 0;
$result = mysql_query("INSERT INTO users(unique_id, authorized, auth_code, name, email, encrypted_password, salt, created_at) VALUES('$uuid', '$auth', '$rand', '$name', '$email', '$encrypted_password', '$salt', NOW())");
// check for successful store
if ($result) {
// get user details
$uid = mysql_insert_id(); // last inserted id
$result = mysql_query("SELECT * FROM users WHERE uid = $uid");
// return user details
return mysql_fetch_array($result);
} else {
return false;
}
}
哈希函数是:
/**
* Encrypting password
* @param password
* returns salt and encrypted password
*/
public function hashSSHA($password) {
$salt = sha1(rand());
$salt = substr($salt, 0, 10);
$encrypted = base64_encode(sha1($password . $salt, true) . $salt);
$hash = array("salt" => $salt, "encrypted" => $encrypted);
return $hash;
}
/**
* Decrypting password
* @param salt, password
* returns hash string
*/
public function checkhashSSHA($salt, $password) {
$hash = base64_encode(sha1($password . $salt, true) . $salt);
return $hash;
}
最后是更新功能(问题出在哪里):
/**
* Updating a users
* password
*/
public function updatePassword($email, $password) {
$uuid = uniqid('', true);
$hash = $this->hashSSHA($password);
$encrypted_password = $hash["encrypted"]; // encrypted password
$salt = $hash["salt"]; // salt
$result = mysql_query("UPDATE users SET encrypted_password='$encrypted_password', updated_at = NOW() WHERE email='$email'");
$result = mysql_query("UPDATE users SET salt='$salt', updated_at = NOW() WHERE email='$email'");
// check for successful store
if ($result) {
// get user details
$uid = mysql_insert_id(); // last inserted id
$result = mysql_query("SELECT * FROM users WHERE email = '$email'");
// return user details
return mysql_fetch_array($result);
} else {
return false;
}
}
一如既往,非常感谢任何帮助。
编辑:
按要求登录功能:
/**
* Get user by email and password
*/
public function getUserByEmailAndPassword($email, $password) {
$result = mysql_query("SELECT * FROM users WHERE email = '$email'") or die(mysql_error());
// check for result
$no_of_rows = mysql_num_rows($result);
if ($no_of_rows > 0) {
$result = mysql_fetch_array($result);
$salt = $result['salt'];
$encrypted_password = $result['encrypted_password'];
$hash = $this->checkhashSSHA($salt, $password);
// check for password equality
if ($encrypted_password == $hash) {
// user authentication details are correct
return $result;
}
} else {
// user not found
return false;
}
}