Since we’re interested in intercepting TLS traffic on Android this means we can’t use Wireshark to decrypt the traffic. But if you want to intercept traffic from other programs or from Android you will generally be out of luck. If Wireshark has the pre-master secret it will be able to decrypt the traffic.Ĭurl and browsers such as Chrome and Firefox for computers can generate these secrets when the connection is set up. This is generated by the client when setting up a secure connection with the server. The other way is to provide Wireshark with the pre-master secret. The first is using the private key the server is using to encrypt the traffic, but this is something you generally don’t have access to when analyzing Android applications. There are two ways that Wireshark can decrypt TLS traffic. The traffic is all encrypted, you can't really see much more than the domain Wireshark is a great tool for capturing raw network packets, but if the traffic is encrypted with TLS it makes things complicated. To do this you will need a rooted Android device (or emulator) that’s connected to a computer using adb. If TLS is used things get complicated, so in this article I’m going to explain how to intercept generic TLS traffic that goes to and from an Android device. This is often very convenient, but sometimes you need to go deeper and look at the raw network packets. In the article Sniffing https traffic on Android 11 I described how you can intercept https traffic on Android.
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