How to find TLS version used to call an APIs

Asked Apr 25 '18 at 16:08

Active Apr 25 '18 at 16:08

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I am trying to find out the TLS version used while calling third party APIs, I have captures these API request/response through fiddler but its not showing the TLS version used in this request. I have followed the below link: How to test which version of TLS my .Net client is using

As per above link, the TLS version can be found in TextView. Below is the snapshot what it showing to me in TextView:

Any help in this regards will be greatly appreciated.

Thanks

asked Apr 25 '18 at 16:08

kamal

2

Have you considered using WireShark? https://www.wireshark.org/download.html – DontThinkJustGo Apr 25 '18 at 16:11
Apparently if you go to the Rules menu and desselect Hide CONNECTs, it will show you the tls version. – DontThinkJustGo Apr 25 '18 at 16:15
I have already tried it with both "Hide CONNECTs" selected and un-selected, but it shows same results. – kamal Apr 25 '18 at 18:11
A CONNECT only occurs if the TCP connection was closed. Therefore for enforcing a CONNECT you have to restart the application or Fiddler. – Robert Apr 26 '18 at 18:15

How to find TLS version used to call an APIs

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