snmpv3 authentication protocol

PPP, that is, the Point-to-Point Protocol, is the data link layer protocol for point-to-point lines launched by IETF. This protocol is not a proprietary protocol. It can connect devices of different vendors, support multiple protocols, provide optional authentication service

Brief introductionHttpClient supports three different forms of HTTP protocol validation: Basic,digest and NTLM. These can resolve authentication between the HTTP server and the proxy server.Authentication ServerHttpClient processing server Authentication is almost transparent, and the sender only needs to do one thing and provide a legitimate login certificate. T

Through understanding the PPP protocol, we also entered the configuration phase. We know that the PPP protocol (point to point protocol) is the predecessor of the point-to-point protocol, SLIP, the PPP protocol provides a standard method for encapsulating multiple network da

understanding of SSH, let's look at how the SSH protocol achieves secure data communication. First look at the main architecture of the SSH protocol: Figure 2. The composition of the SSH protocol Transport Layer protocol: typically running on top of TCP/IP, is the basis of many secure network services, providing da

algorithm and many public key cryptography algorithms.3.3 DH key exchange processUser A and User B share the prime number Q and its generated meta A, now A and B key exchangeUser A: Generates random number Xa User B: Generates a random number Xb A Get Yb after: Calculate ka = (Yb) ^xa mod qb After getting Ya, calculate KB = (Ya) ^XB mod qThe final result is: Ka = KbThe proof process is omitted here, and the surrogate method can soon prove ka = KbAnd the k here is the key that both A and B negot

Reference URL: Http://www.faqs.org/rfcs/rfc2617.html Http://www.faqs.org/rfcs/rfc1321.html Http://www.cnblogs.com/my_life/articles/2285649.html Http://blog.sina.com.cn/s/blog_53b15ed5010006t9.html Http://blog.chinaunix.net/uid-26212859-id-3485297.html Http://blog.csdn.net/jackxinxu2100/article/details/5610448#reply Http://www.vsharing.com/k/KM/2003-1/458471.html Http://support.microsoft.com/kb/811318/zh-cn The first five are important, and the first two are the most important. A thttpd Web serv

The Kerberos protocol was first proposed by MIT and is an identity authentication protocol. Application scenarios:In an open environment, if a Workstation user wants to request various services distributed in the network through the network, the server can only provide services to authorized users, and can identify the types of service requests. Principles of Ker

HTTP protocol (ii) Basic authenticationThe HTTP protocol is stateless and can be identified by a cookie between the browser and the Web Server. How are desktop applications (such as the Sina desktop client, SkyDrive client) and the Web server identified?What is HTTP Basic Authenticationdesktop applications also pass The HTTP protocol interacts with the Web server

MySQL5.1 adopts an authentication protocol based on the cryptographic mixed encoding algorithm, which is incompatible with the protocol used by the early client (before 4.1. If you upgrade the server to MySQL 4.1, the connection may fail with an earlier client and the following message is displayed: The shellmysql client does not support the

MYSQL4.1 and later, a new user authentication protocol is adopted. for old clients, there will be errors that do not support the authentication protocol. The following is the solution on the official website: 1Upgradeallclientprogramstousea4. 1.1ornewerclientlibrary. update the client library, which requires updating t