ssl and tls protocols

handshake protocol. SSL is developed by Netscape to protect Web communication. The current version is 3.0. The latest version of TLS 1.0 is a new protocol developed by IETF (engineering task group). It is based on the SSL 3.0 protocol specification and is a later version of SSL 3.0. The difference between the two is v

:1. HTTPS is still to be transmitted based on TCP(If you change to UDP as the transport layer, whether it is a WEB server or browser client, you have to change the big, the movement is too large)2. Use a new protocol alone to wrap up the HTTP protocol(The so-called "http over SSL" is actually a layer of SSL encapsulation outside of the original HTTP data.) HTTP protocol of the original GET, POST and other m

following conclusions: HTTPS or TCP-based transmission(If you change to UDP as the transport layer, whether it is a WEB server or browser client, you have to change the big, the movement is too large) Use a new protocol alone, wrap up the HTTP protocol(The so-called "http over SSL" is actually a layer of SSL encapsulation outside of the original HTTP data.) HTTP protocol of the original GET, P

still to be transmitted based on TCP(If you change to UDP as the transport layer, whether it is a WEB server or browser client, you have to change the big, the movement is too large)2. Use a new protocol alone to wrap up the HTTP protocol(The so-called "http over SSL" is actually a layer of SSL encapsulation outside of the original HTTP data.) HTTP protocol of the original GET, POST and other mechanisms, b

the transport layer, whether it is a WEB server or browser client, you have to change the big, the movement is too large)2. Use a new protocol alone to wrap up the HTTP protocol(The so-called "http over SSL" is actually a layer of SSL encapsulation outside of the original HTTP data.) HTTP protocol of the original GET, POST and other mechanisms, basically intact)For example: If the original HTTP is a plasti

the transport layer, whether it is a WEB server or browser client, you have to change the big, the movement is too large)2. Use a new protocol alone to wrap up the HTTP protocol(The so-called "http over SSL" is actually a layer of SSL encapsulation outside of the original HTTP data.) HTTP protocol of the original GET, POST and other mechanisms, basically intact)For example: If the original HTTP is a plasti

HTTPS protocols: TLS, SSL, SNI, ALPN, PNP, snialpn HTTPS is now widely used. It brings security while introducing more complicated concepts to the Web. This includes a series of network protocols that have never been seen before. Now, based on the principle of HTTPS, Harttle tries to interpret these

is, each session has a number (session ID ). If the dialog is interrupted, the client can re-use the existing "dialog key" as long as the client gives this number and the server has this number record during the next reconnection ", instead of generating a new one. The client provides the session ID. When the server confirms that the number exists, both parties no longer perform the remaining steps in the handshake phase, and directly use the existing conversation key for encrypted communicati

This week, cloudflare announced that it began to provide the keyless service, that is, you put the website on their CDN, without providing your own private key, you can also use SSL encrypted links. After reading cloudflare's instructions (here and here), I suddenly realized that this is an excellent example to illustrate the running mechanism of the SSL/TLS pro

authentication code (MAC) to ensure data integrity and prevent message tampering Replay protection-Protection against replay attacks by Using implicit serial numbers To achieve these security goals, the SSL/TLS protocol is designed as a two-phase protocol, divided into the handshake phase and application phase: The handshake stage is also called the negotiation stage. At this stage, the client and the serv

When I used httpwebrequest to access other websites, the error "the request was aborted: unable to establish SSL/TLS Secure Channel" appeared. So goog and Baidu compared the problem. The answer is servicepointmanager. servercertificatevalidationcallback write delegate Public responsemodel gethtml (string URL) {servicepointmanager. servercertificatevalidationcallback = validateservercertificate; httpwebrequ

and DSS) to verify the identity of the peer entity.L reliable when connected. Message transfer uses a key for the MAC, including message integrity checks. A secure hash function (such as SHA and MD5) is used for Mac computing.The degree of acceptance of SSL is limited to HTTP only. It has been shown to be available in other protocols, but it has not been widely used.Second, TLS1. About TLSTLS: Secure Trans

Me: hi,tls! This is your special session! Tls:ok, then I'll start! First of all, my name is called Transport Layer Security Protocol (Transport Layer Secure Protocol), which is an upgraded version of SSL. In fact, my left and right hand are able to use the left hand is called record layer (record), the right hand is called handshake layer (handshake layer) ...Me: Hey, wait a minute, record layer? The handsh

/TLS family using secure protocols: S SLv2, SSL v3, TLS v1.0, TLS v1.1, TLS v1.2. (Shawn Note: TLS v1.3 is still in the draft phase) * SSL v

punctured.◇ ScalabilityAs I said earlier, HTTPS is equivalent to "HTTP over SSL".If the SSL protocol is designed to be "scalable" enough, it can be paired with other application-layer protocols in addition to HTTP. Wouldn't it be beautiful?Now it seems that the person who designed the SSL did compare cattle. Today's

session) throws Exception {System. out. println ("sessionCreated") ;}@ Override public void sessionClosed (IoSession session) throws Exception {System. out. println ("sessionClosed ");}}Netty Netty implements SSL/TLS by adding an SslHandler, Which is simpler than MINA: Public class NettyServer {public static void main (String [] args) throws InterruptedException, SSLException {File certificate = new File (

OpenLDAPAndOpenSSLIntroductionOpenLDAP is one of the most common directory services. It is an open-source project developed and managed by open-source communities and volunteers. It provides all the functions of directory services, including Directory Search, identity authentication, secure channel, and filter. Most Linux distributions contain OpenLDAP installation packages. By default, OpenLDAP uses the unencrypted TCP/IP protocol to receive service requests and transmit the query results back

version. If your server platform does not support tlsv1.2, make an upgrade plan. If your service provider does not support tlsv1.2, ask them to upgrade. For those older clients, you still need to continue to support tlsv1.0 and tlsv1.1. For a temporary solution, these protocols are still considered safe for most Web sites. 2.3 Use secure Ciphersuites (shawn Note: True TM does not know how to turn the word, meaning a bunch of cipher sets, including ke

data using a key during work, the creation and use of the key depend on the JCE submodule. However, this article will focus on the SSL/TLS protocol in the main JSSE section, focusing on the security and communication details of the SSL/TLS Protocol. At the same time, we will compare and explain this application in And

After human established the communication system, how to ensure the security of communication is always an important problem. With the establishment of modern communication system, people use mathematical theory to find some effective methods to ensure the security of digital communication. In simple terms, the process of the two-party communication is treated confidentially, such as the content of the communication between the parties to encrypt, so that can effectively prevent the listener eas