1. After OpenSSL is installed, find OpenSSL. CnF in the/usr/lib/SSL directory (for Ubuntu system, use whereis to check the SSL directory) and copy it to the working directory.
2. Create a New democafolder under the Work directory, create the new files index.txt and serial in the folder, and then create a newcerts folder. Add the character 01 to serial.
Mkdir democa
CD democa
Touch./{serial, index.txt}
Add 01: WQ to VI serial
Certificate generation pro
lower than that of symmetric encryption and decryption algorithms. Therefore, SSL uses asymmetric cryptographic algorithms to negotiate keys during the handshake process, and uses symmetric encryption and decryption methods to Encrypt transmission of HTTP content. The following is a metaphor for the image of this process (from http://blog.chinaunix.net/u2/82806/showart_1341720.html ):
Assume that a communicates with B, A is an SSL client, B is an SSL server, and encrypted messages are placed i
After you enable Apache Mod_ssl, you need a certificate to function properly. Wrote a script to manipulate it. The first thing to make sure is that there are OpenSSL on the machine.
Copy Code code as follows:
#!/bin/sh
#
# The root directory for SSL certificate output.ssloutputroot= "/etc/apache_ssl"If [$#-eq 1]; ThenSsloutputroot=$1Fiif [!-D ${ssloutputroot}]; ThenMkdir-p ${ssloutputroot}Fi
SSL is a commonly used WEB Service encryption channel. Its full name is Secure Socket Layer, which is also known as the Secure sockets interface. It uses digital certificates to ensure its security mechanism. The main function is encryption and authentication to protect the security of network transmission. It is in the middle of the HTTP and TCP layers.
SSL encryption and authentication use public keys and private keys. Our users use public keys to encrypt data, and the corresponding private ke
Digital Certificate and Its Application in Security Testing0x00 background
To perform security tests on the Web layer, it is inevitable that a man-in-the-middle proxy will be used to capture packets for analysis. Common tools include BurpSuit, Fiddker, and Charles. The usage of these tools has been described on the Internet. I will not go into details here. However, when testing websites with high security, you may encounter SSL communication problems
Handshake and communication over the SSL protocol
To better understand and understand the SSL protocol, we will introduce the handshake protocol of the SSL protocol. SSL uses both public key encryption and symmetric encryption. Although symmetric encryption is faster than public key encryption, public key encryption provides better identity authentication. The SSL handshake protocol is very effective for customers and servers to complete identity authentication. The main process is as follows:①
About this piece of content, in the online search post are older, see the post on the basic is Xcode6 before the iOS8 version of the age, for now more new iOS10.2 and Xcode 8.2来, knowledge points in the whole is still some not comprehensive, Just recently the project needs to do this piece of content, it is sorted out, convenient for later review.Development environmentHardware: MacBook Pro/iphone 7Software: OS 10.11.5/xcode 8.2.1/ios 10.2.1Certificate RequestIf you need to do a remote push, the
SSL security technology can be used in most Web sites, which are primarily used to handle important security data. SSL establishes a secure encrypted connection between the server and the client, most commonly the connection between the Web server and the browser or the email client on the client computer. SSL is recognized as a security protocol because it specifies cryptographic algorithms and necessary variables for encrypted connections, and the purpose of secure connections using SSL is to
Do the real-time test, according to the online process, walked through, at that time did not pay attention to the meaning of various certificates. Now do message push, need a variety of certificates, APP ID information, in order to better understand the process, so collated the online certificate and other relevant information. Convenient for yourself and a friend in need.Content reference from: http://blog.csdn.net/hitwhylz/article/details/22989507ht
Do the real-time test, according to the online process, walked through, at that time did not pay attention to the meaning of various certificates. Now do message push, need a variety of certificates, APP ID information, in order to better understand the process, so collated the online certificate and other relevant information. Convenient for yourself and a friend in need.Content reference from: http://blog.csdn.net/hitwhylz/article/details/22989507ht
SSL protocol and digital certificate principles
1st Floor
Handshake and communication over the SSL protocolTo better understand and understand the SSL protocol, we will introduce the handshake protocol of the SSL protocol. SSL uses both public key encryption and symmetric encryption. Although symmetric encryption is faster than public key encryption, public key encryption provides better identity authentication. The SSL handshake protocol
Certificate Services AppEnvironment: A single domain controller server 2008, one clientPurpose: Encrypt dataSteps:1. On the domain controller, in Administrative Tools, open Server Manager, select Roles, and click Add Roles.2. In the Select Server Roles window, select Active Directory Certificate Services, and then tap Next. :650) this.width=650; "Style=" background-image:none;border-bottom:0px;border-left:0
One of the things faced by many network engineers is the maintenance and update of SSL certificates. For the author, SSL certificates are mainly used for VPN deployment, but there are also many network devices that need certificates to encrypt client-to-server communication. Every time I claim that I need a certificate, everyone will become speechless, and the certificate may be a bit scary for most people.
Certificate formats-X.509, der and PEMPart: 1 2 3Certificate standard and File encodings seem to be confusing. I wrote down some notes about:
What is X.509 certificate standard?
PEM (privacy enhanced mail) Encoding
Der (distinguished encoding rules) Encoding
"Keytool" exporting certificates in der and PEM
"OpenSSL" verifying "keytool" Certificates
"OpenSSL" generating cert
[Slightly abridged] In order to achieve the popularity of the effect, I will try to use the more obvious, non-technical language to clear.★ First to say a popular exampleConsidering the knowledge of the certificate system is more dull and obscure. Let me start with a popular example. ◇ General Letter of introductionI suppose everyone has heard of the example of a referral? Suppose Mr. Zhang San of Company A is going to visit Company B, but everyone at
This is a tutorial from Raywenderlich, the content is informative! The structure is simple and thorough, the explanation is gradual, article quality is superior! It's a difficult blog post! Use half a bottle of English to translate a bit:1. Overview of "IOS Push full resolution" (i) push2. "IOS Push full resolution" (ii) Generate a push certificate, Generate provisioning profile (this article)3. "IOS Push full resolution" (iii) a minimalist demo and t
from Http://www.cnblogs.com/P_Chou/archive/2010/12/27/https-ssl-certification.htmlGlobal trusted SSL Digital certificate request: http://www.shuzizhengshu.comIn the Internet Secure Communication mode, the most used is HTTPS with SSL and digital certificates to ensure the security of transmission and authentication. This article has been traced around this model for a brief discussion.noun explanationFirst explain some of the above nouns:
http
In previous tutorials, I learned how to view an https server certificate and its certificate path. Now I want to learn how to save a server certificate to a certificate file.
1. Run Firefox 3 and go to https://login.yahoo.com.
2. Click the lock icon at bottom right corner of the browser window. The page info dialog box
Global trusted SSL Digital certificate request: http://www.shuzizhengshu.comIn the Internet Secure Communication mode, the most used is HTTPS with SSL and digital certificates to ensure the security of transmission and authentication. This article has been traced around this model for a brief discussion.noun explanationFirst explain some of the above nouns:
https: a secure HTTP protocol based on HTTP (Hypertext Transfer Protocol), so it can b
At present, there are various types of websites. When we enter personal information on some websites, especially online banking transactions, how can we ensure that the websites you are facing are credible? By using the SSL Certificate of the website ID card, we can clearly understand whether the website is secure and trustworthy. Generally, the browser determines the security of these certificates. If we can master some identification methods of SSL
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