ocsp responder

incoming SPI value.Nat cannot map SPI because the end of ESP contains a hashed message authentication code (HMAC), which verifies the ESP Protocol Data Unit (PDU) (esp PDU contains the ESP header, esp payload, and ESP tail). SPI cannot be changed before the HMAC value expires. The Ike UDP port cannot be changed..Some IPSec implementations use UDP port 500 as both the source and target UDP port numbers. However, for an IPsec contact after Nat, Nat changes the source address of the original Ike

. NET Server can also call the client conveniently and call the client method (for example, implement system broadcast ). I. Client RPC (The client calls the server.) To implement the method for client access to the server, you must first be familiar with netconnection in ActionScript. This class provides an example method called () for RPC access. The method is defined as follows: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Public Fu

IOS_38 _ gesture and ios_38 gestureEvents are classified into three categories: Touch, accelerator, and remote control.Only the subcategory of the responder can receive and process events.The event processing interface defined in the parent class responder is as follows:The following are four methods for processing a touch event: (as long as the event is implemented, the system automatically calls the event

How to Use the SARG log analyzer on CentOS to analyze Squid logs In the previous tutorial, we showed you how to use Squid to configure transparent proxy on CentOS. Squid provides many useful features, but it is not straightforward to analyze an original Squid log file. For example, how do you analyze the timestamp and number in the following Squid log? 1404788984.4291162172.17.1.23 TCP_MISS/302436 GET http://facebook.com/-DIRECT/173.252.110.27 text/html 1404788985.04612416172.17.1.23 TCP_MISS

online certificate status certification of a server, and Ca/pki high correlation 4. The following ca/pki is studied, and it is found that OCSP is a service for replacing CRLs (certificate revocation lists) for real-time querying of status information for certificates. Reference Link: http://umtiger.blog.sohu.com/153079434.html Http://baike.baidu.com/link?url=hZr8C1eJAnaPq3G4nAIJBPswznRcdX5nwYt7GvTQbpKCeZgxJPgRANZdZSYIfekZuhX8QQmPFlveqoyWDYEX

the client encryption authentication, we used a simple script to help us quickly generate a variety of certificates and visas, eliminating the memory cumbersome OpenSSL command line, simplified use. This is, of course, a minimum available set, and many improvements may be required when the scale is large, such as a Web UI that joins a CA, direct operation of visas and revocation of certificates, and the ability to automatically restart Nginx. Again such as the CRL this static configuration file

:ECDHE-ECDSA-AES128-SHA256: Ecdhe-rsa-aes128-sha256:ecdhe-ecdsa-aes128-sha:ecdhe-rsa-aes256-sha384:ecdhe-rsa-aes128-sha: Ecdhe-ecdsa-aes256-sha384:ecdhe-ecdsa-aes256-sha:eCdhe-rsa-aes256-sha:dhe-rsa-aes128-sha256:dhe-rsa-aes128-sha:dhe-rsa-aes256-sha256:dhe-rsa-aes256-sha: ecdhe-ecdsa-des-cbc3-sha:ecdhe-rsa-des-cbc3-sha:edh-rsa-des-cbc3-sha:aes128-gcm-sha256:aes256-gcm-sha384: aes128-sha256:aes256-sha256:aes128-sha:aes256-sha:des-cbc3-sha:! DSS '; Ssl_prefer_server_ciphers on; Ssl_ecdh_cur

to your needs. Ssl_protocols TLSv1 TLSv1.1 TLSv1.2; Ssl_ciphers ' ecdhe-ecdsa-chacha20-poly1305:ecdhe-rsa-chacha20-poly1305:ecdhe-ecdsa-aes128-gcm-sha256: Ecdhe-rsa-aes128-gcm-sha256:ecdhe-ecdsa-aes256-gcm-sha384:ecdhe-rsa-aes256-gcm-sha384:d He-rsa-aes128-gcm-sha256:dhe-rsa-aes256-gcm-sha384:ecdhe-ecdsa-aes128-sha256:ecdhe-rsa-aes128-sha256:ecdhe-ecdsa-aes128-sha:ecdhe-rsa-aes256-sha384:ecdhe-rsa-aes128-sha: Ecdhe-ecdsa-aes256-sha384:ecdhe-ecdsa-aes256-sha:ecdhe-rsa-aes256-sha:dhe-rsa-aes12

certificate can be signed by an authenticated authority (CA.Certification Authority acts as a trusted third party in the digital security field. It is very difficult to prove the identity of an entity in the online field to take over this challenge. They provide proof of identity for users who have purchased or signed the certificate. Therefore, to trust a certificate, you only need to trust the Certificate Authority. You can use a ca-based trust certificate to demonstrate your trust in the aut

domain, certification authority takes over the challenge. they provide proof of identity for those who purchase or sign the certificate. therefore, to trust a certificate, the user only needs to trust the certificate authority. users demonstrate their trust in the certification authority by owning and using the CA's trust certificate. verisign and Thawte are very well known for their certification authority. If the security of a certificate has been compromised, the certificate is discarde

control that is most appropriate to handle the touch event, which defaults to handling the Touch event: (The following is what the responder chain is about) based on the default response of the control to the event, About three kinds (certainly not only): 1.button: The default is to handle the event, and no more calls to [Super Touchesbegan:touches withevent:event]; flip up the response so that the response chain is broken; 2.uiview: If you do not im

(element. detachevent) {element. detachevent ('on' + realtype, reallistener);} Lis. splice (Len, 1) ;}} return element; }; It can be seen that Tangram has changed the binding method, and its nature is the same. 2) jquery // Only use addeventlistener/attachevent if the special events handler returns false If (! Special. Setup | special. setup. Call (ELEM, Data, namespaces, eventhandle) === false ){// Bind the global event handler to the elementIf (ELEM. addeventlistener ){ELEM. addeventlist

IOS programming Delegation and Text Input, iosdelegation IOS programming Delegation and Text Input 1.1 Text Fields CGRect textFieldRect = CGRectMake (40, 70,240, 30 );UITextField * textField = [[UITextField alloc] initWithFrame: textFieldRect]; // Setting the border style on the text field will allow us to see it more easily textField. borderStyle = UITextBorderStyleRoundedRect;[BackgroundView addSubview: textField]; Tap on the text field, and the keyboard will slide up from the bottom of the

IOS event processing and iOS event processing Event Processing in iOS is very important and rare. When it comes to the Instant Q A questions, many old birds who have been working for two or three years may not be very professional. Here we will detail the event handling in iOS and the responder chain.1. Three major events 2. Target audience In iOS, not all objects can process events, but only inheritUIResponderTo receive and process events. We cal

Obtains the Controller currently displayed in the window. This solution is similar to the requirement that the Netease news client should pop up a UIAlert after receiving the News Push and jump to the news details page. 1. Provides a classification method for UIView. This method obtains the controller of the view through the responder chain. - (UIViewController *)parentController{ UIResponder *responder

extension debug callback */ Void (* tlsext_debug_cb) (SSL * s, int client_server, int type, Unsigned char * data, int len, Void * arg ); Void * tlsext_debug_arg; Char * tlsext_hostname; Int servername_done;/* no further mod of servername 0: call the servername extension callback. 1: prepare 2, allow last ack just after in server callback. 2: don't call servername callback, no ack in server hello */ /* Certificate status request info */ /* Status type or-1 if no status type */ Int tlsext_status_

matters worse, many browsers will try to circumvent the problem in order to "perform better". So the lack of intermediate certificate has been there, has not been found, and the speed of the program calls always go up, and even a certain chance of error (I have encountered this strange problem). If the certificate chain is fully configured, also pay attention to the size of the certificate chain. Some Web sites have full certificates that are unusually large, reaching several KB or even dozens

During main mode negotiation, two computers establish a secure and authenticated channel. First, the following IPsec policy parameters are negotiated: The encryption Algorithm (DES or 3DES), the integrity algorithm (MD5 or SHA1), the Diffie-hellman group for the base key material (group 1, Group 2, or group 2048 in Windows Server 2003) ) and authentication Methods (Kerberos V5 protocol, public key certificate, or preshared key). After the IPSEC policy parameters are negotiated, the Diffie-hellm