Secure Socket Layer, SSL based HTTP protocol), port 443, need to request a certificate from the CA, the SSL handshake to establish a secure channel, The data is symmetric encrypted by using the negotiation key.
Using Wireshark to filter SSL traffic, you can see several obvious SSL session creation packages, such as client hello,server hello;
First send ClientHello the random number along with its own supported protocol version, encryption algorithm
This article is reproduced from: http://www.yangyanxing.com/article/use-wireshark-capture-https.html
Today I'm looking at HTTPS technology, so I want to use Wireshark to crawl and decrypt HTTPS traffic.The basics of HTTPS can look at this articleThe basic theory of
The analysis based on Wireshark grasping packetFirst use Wireshark and open the browser, open Baidu (Baidu uses HTTPS encryption), random input keyword browsing.I'm going to filter the bag I caught here. The filter rules are as followsip.addr == 115.239.210.27 ssl
1
Here is a diagram to describe the process of grasping the package as seen above.1.
Based on personal experience, this article describes how to use Wireshark (Ethereal's new name) to view encrypted messages in the captured SSL (including HTTPS).
When you configure HTTPS (based on TLS/SSL) with servers such as Tomcat, you often need to use Wireshark to grab the package and want to view the HTTP message
OverviewIn some scenarios, we need to analyze the site's HTTPS traffic, and the Devtools tool provided by Chrome won't be able to view previous requests when the page jumps.Using Wireshark to fully grasp the entire process, this article is mainly on-line information to collate, for future inspection.StepsAs an chrome example, the Mac details the following:1. Find a browsersudo find / -iname "Google Chrome"Y
Introduced
The function of the network packet analysis software can be imagined as "electrician technicians use electric meters to measure current, voltage, resistance"-just porting the scene to the network and replacing the wire with the network cable. In the past, the network packet analysis software is very expensive, or specifically belongs to the use of the software business. Ethereal's appearance changed all this. Under the scope of the GNUGPL general license, users can obtain the software
If there is a server-side certificate, then we can analyze the Web under the HTTPS communication situation, in particular scenarios have certain uses, such as external auditThe following is the configuration of the view HTTPS setting in Wireshark or TsharkWireshark VerificationTshark VerificationTshark-f "TCP and port 443"-I Eth2-o "SSL.KEYS_LIST:192.168.0.155,44
Now introduce a method of Chrome,firefox supportSetting the SSLKEYLOGFILE environment variable, when accessing HTTPS Web pages, the browser records the symmetric session key, which is combined with Wireshark to further decrypt the HTTPS communication plaintext.1. Setting System Environment variablesSslkeylogfile=d:\program Files\
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