from password to token, a licensed story
Article reprinted from the public number "yard Farm roll Over"
Author: Liu Xin
1. I dedicate my password to you.
Xiao Liang developed a "credit card Butler" program, you can automatically read from the mailbox credit card-related messages, analysis, summary, form a report.
Trabecula Find credit card talent Big Fat trial: "Your credit card so much, see my program, categorization malleability you will love it
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
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
The composition of JWT tokensHead (header), in the following format:{"Typ": "JWT","ALG": "HS256"}From the above, the token uses the HS256 encryption algorithm, which uses the BASE64 encoding of the head to obtain a string in the following format:Payload (playload):{"ISS": "Online JWT Builder","IAT": 1416797419,"Exp": 1448333419,......."UserID": 10001}The payload contains token issuer (ISS), issue time (IAT)
forgery and can be exploited to access other sites.Among these problems, scalability is the most prominent. Therefore, it is necessary for us to seek a more effective method.
2. Token based authentication
Using the Token authentication method, you do not need to store the user's logon record on the server side. The approximate process is this:
1. Client login using username and password
2. The server recei
1, first of all, say what is the interface: the interface is simply the server side used to return to other programs or client data bridge
2, the role of the interface: according to fixed parameters to return fixed data, such as the client a=1, then the server returns the name of a, the client passes a=2, the server returns the gender of a, and does not return other data.
3, the role of signature signature: To ensure the security of the interface and data
4, the role of
What is learning Tokentoken?
Token is a string generated by the server to serve as a token for the client to make the request, and when the first login is made, a token is returned to the client, and the client needs to bring the token to request the data, without having to bring the username and password agai
Side dishes recently contacted the struts2 in the knowledge of the token, because the knowledge point is more important, so want to understand some, so the confidence of the Internet access to data, the result is very helpless, the data on the web, summed up a sentence: "When the page, the page generated a token ID, At the same time, the server in the session to save the same ID, when submitted to determine
In large data high concurrent access, there is often a service or interface in the face of the explosion of the request is not available, or even triggered a chain reaction caused the entire system crashes. At this point you need to use one of the technical means to limit the flow, when the request reached a certain number of concurrent or rate, it is waiting, queuing, demotion, denial of service and so on. In the current limit, the two common algorithms are leaky bucket and
Principle:
Servlet page Code:
1. Each request produces a token (generally timestamp), stored in the session and followed by hidden submission, in the servlet to determine whether the received token and session consistency to determine whether to repeat the submission, if not the recurrence of a Token is stored in the session to overwrite the original
What is learning Tokentoken?
Token is a string generated by the server to serve as a token for the client to make the request, and when the first login is made, a token is returned to the client, and the client needs to bring the token to request the data, without having to bring the username and password agai
1 Packagetoken2 3 Import (4"Crypto/md5"5"FMT"6"IO"7"Math/rand"8"Sync"9"Time"Ten ) One A type User struct { - ID String -Timer *Time . Timer the } - -var Token map[string]*user = Make (map[string]*User) -var maxlivetime time. Duration = time. Hour * 24//token update time is tentatively 24 hours + var lock sync. Rwmutex - + ConstRandstringlen = 16 A at func randstring () string { -str: = make ([]byte, Ra
ObjectiveLog on to the site, often encounter token parameters, token association is not difficult, it is difficult to find out the first time the server returned the value of the token where the location, taken out can be dynamically associated withLogin Pull-Hook net1. First find the Login homepage https://passport.lagou.com/login/login.html, enter the account n
How do I use token? I see a token when someone else's mobile client interacts with the server. what is the principle of token? How to implement it? How can I use php to develop servers?
Reply to discussion (solution)
The token is used to verify that the request belongs to your client. only when the
In order to ensure the relative security of mobile and server data transmission, the interface needs to be encrypted and transmitted.first, the purpose of Ttoken design:Because the app side does not have the same session mechanism as the PC, it is not possible to determine whether the user is logged in or not, so a mechanism is needed to implement the session, which is the role of tokenToken is the only ticket the user logs on, as long as the app comes with tokens and server-side consistent, you
PHP Token. Because base64 is used, a problem occurs when sending the token through the GET method. For example: testtest. php? A1 + 2 you use $ _ GET [a] to obtain 12, that is, because base64 is used, a problem occurs when sending this token through the GET method.
For example, http: // test/test. php? A = 1 + 2
You can use $ _ GET ["a"] to obtain the value: 1 2,
The words in Windows core programming cannot dispel doubts. Let's explain it to us in msdn. If you want to give a detailed introduction, go to msdn and take a closer look. I just want to describe it in a language that is easy to understand.
Windows ACM and access control mode are composed of two parts. One is access tokens, and the other is Security Identifiers ).
An access token is the information used by the process to access the data that indicat
session timeout by configuring Web.xml, in minutes
allow two ways to coexist, but the former has higher priority
5 Other common API
6. Comparison of Cookie and session tracking mechanism
Cookie session remains on the
client side of the server
can only keep string objects support various types of objects the
type of cookie that distinguishes cookies through expiration time value requires SessionID to maintain communication
with the client Session cookie--negative Cookie (default)
normal c
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