tls&ssl problems on Android 4 - Githubissues

redsolution / xabber-android

Open-source XMPP client for Android

http://xabber.com

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tls&ssl problems on Android 4 #761

Open dorchain opened 7 years ago

dorchain commented 7 years ago

Hello,

when using xabber (2.0.1 from f-droid) it works fine running on a device with anroid7.

When running the same version on android 4 (sorry, no vendor updates available) I get ssl handshake failed. A packet dump shows that the server disconnects immediately after the client hello (where the supported cipher list is sent)

To me it seems this might be relate to different default tls settings in different android version as described in https://forums.xamarin.com/discussion/63005/modernhttpclient-tls-1-2-android-api-19 https://stackoverflow.com/questions/37222696/sslhandshakeexception-on-android-4-4-and-lower https://github.com/ssllabs/ssllabs-scan/issues/258 etc.

Can you please check this?

xmarxthespot commented 4 years ago

there is a fix for apps running 444 using TLS. It does NOT require on OS upgrade