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So I am playing around with fiddler web proxy. I need to decrypt https traffic. So I am trying to put the fiddler root CA cert in my device trust store. But it keeps asking me "Enter the password for credential storage". If i enter anything and click enter I see an Toast message saying

Credential storage has been erased

and the password prompt comes again. This goes on in a loop. For the record I have selected "Wifi" as the Credential use instead of "App n VPN" (not sure of that matters).

enter image description here

Next wired thing that I noticed is that after each prompt the description changes for label

The package contains

The value for it increases each time the password prompt is shown. For eg - 3 CA certificates, 4 CA certificates and so on...

enter image description here

As much as I want my device to accept this certificate I would appreciate if someone could explain the "credential storage" concept and the weird increment of CA certs text.

Intercepting Android network calls using Fiddler Web Proxy

Aniket Thakur
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  • check http://www.pocketables.com/2014/02/fix-credential-storage-roadblock-android.html n https://freestatedrivers.com/android-type-the-password-for-credential-storage/ – Subhalaxmi Mar 26 '15 at 13:27
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    @SubhalaxmiNayak The approach is 1st link worked. Found the same in android central forum too. Thanks. – Aniket Thakur Mar 26 '15 at 13:48

2 Answers2

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I could now install the certificate. I had to disable pattern screen lock and try installing certificate again. This time it asked me to setup security - pin or password.

enter image description here

That I did and cert got installed. Got the solution from android central forum.

http://forums.androidcentral.com/google-nexus-7-tablet-2012/301151-credential-storage.html

I guess that thread is for VPN but same solution works for Wifi certs as well. Please do add if anyone has any additional info on this or workaround.

Aniket Thakur
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    It didn't allow me to remove the pattern pin. So I changed it to a password pin and the install worked this time though it prompted me for a password. – satyajit Jun 24 '16 at 21:55
  • I'm still stuck after trying all these things – Almo Aug 25 '16 at 23:34
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you must create a password to block/unblock smartPhone, Not PIN, maybe Patter, I try set a password and works fine

Antony
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