mfa token

Recently in the interface with PHP to write apps, there are some questions First on token (token)Token is generated when the user logs onUser Token save inbound client on the server the local majority of the interfaces require the client to send tokens in the token and serv

PHPToken (token) design. How to achieve the goal: How to avoid repeated submission? You need to store an array in the SESSION. this array is used to store successfully submitted tokens. when processing in the background, first determine whether the token is in this array for the purpose: How to avoid repeated submission? You need to store an array in the SESSION, which is saved as the

Problem Description: Now the site in the registration step, because the background to deal with a lot of information, resulting in slow response (test machine poor performance is also a factor to slow down), before the front page to submit information, wait for the backend response, at this time if the userClick the Submit button again, and the background will save multiple copies of the user information. In order to solve this problem, the token idea

What's token? The user's data security is important, and HTTP is a stateless protocol and does not differentiate visitors. This needs to do user authentication, user input account and password, the user needs to record the login information, to prevent access to the next page needs to be verified. The traditional processing method is that, with the help of the session mechanism, when the user logs in, the server generates a record that marks the user

How PHP adds token validation to the controller//获得tokenprivatefunctiongetToken(){$tokenName=C(‘TOKEN_NAME‘,null,‘__hash__‘);$tokenType=C(‘TOKEN_TYPE‘,null,‘md5‘);if(!isset($_SESSION[$tokenName])){$_SESSION[$tokenName]=array();}//标识当前页面唯一性$tokenKey=md5($_SERVER[‘REQUEST_URI‘]);if(isset($_SESSION[$tokenName][$tokenKey])){//相同页面不重复生成session$tokenValue =$_SESSION[$tokenName][$tokenKey];}else{$tokenValue=is_callable($tokenType)?$tokenType(microtime(true))

Learn about Token-based authentication recently and share it with everyone. Many large web sites are also used, such as Facebook,twitter,google+,github, and so on, compared to traditional authentication methods, Token is more extensible and more secure, it is very suitable for use in WEB applications or mobile applications. Token of the Chinese people translated

Struts2 token not only effectively prevents the form from repeating the submission, but also can be CSRF verified.CSRF attack principles such as:CSRF attack schematic diagramIn fact, B may also be a benign website, just hijacked by hacker XSS. User is really wronged AH: I did not go to a mess of the site, how still in the recruit?Struts2 token Check principle:STRUTS2 to