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On ICS or later you can check this in your settings. Go to Settings->Security->Trusted Credentials to see a list of all your trusted CAs, separated by whether they were included with the system or installed by the user. Earlier versions of Android keep their certs under /system/etc/security in an encrypted bundle named cacerts.bks which you can ...

Lookout Mobile has blogged about this due to the DigiNotar events, and provided some pretty good (read: lengthy) instructions which you can find here. The gist of it is that you need to pull /system/etc/security/cacerts.bks and then remove the CAs from the store, then push the store back to the device and reboot. Their instructions require that you have ...

For other people looking for this answer who can't use realmB's solution because they can't access the internet on their phone...I just changed the file extension of my certificates from .cer to .crt and everything worked fine! Thanks to the users of this forum for the lead on the solution.

For Android 2.2, the certificates (without renaming or converting) can be placed at the root of the sd card. To install: Go to the Settings/Security menu, Credential storage section. Activate Use secure credentials. Click Install from SD card. A menu will appear with the available certificates. Click on each certificate to install. Those certificates ...

I had an issue with something similar a few years back - and I believe this thread helped (see Lynx's post about halfway down). (I know it's a bit old - but I remember it being very helpful). I believe the certificate also needs to be very generically titled "certificate.p12" or something like that (if I recall correctly). Make sure it's in the root of ...

At least on 2.2.1 I can see the options to use certificates. First you have to install the certificates by placing them on your sdcard and using Settings -> Location and security -> Install encrypted certificates. Then you can add the network from Settings -> Wireless and network -> Wi-Fi settings -> Add Wi-Fi network. Select 802.1x EAP as the ...

Rename the file with an extension of .crt and place it in your SD card /download folder. Put the SD card back into your device (or remount it, if internal) and navigate to SETTINGS > SECURITY & PRIVACY > INSTALL CERTIFICATE FROM SD CARD. Hopefully that ought to do the trick, else try this online Certificate Installer tool - it gives you a link that you ...

The problem with disabling the lockscreen security using the toggle/profile is that the lockscreen widgets don't appear either so you can't slide to unlock. Also, when you reboot your phone the buttons don't work until you retoggle the setting again. Another way is to install the certificate as usual then backup the /data/misc/keychain and keystore ...

I connect with my Samsung GSII with CM9 to my eduroam network in the university of alicante. Here you have the link with instructions in english I followed on how to configure the wifi network: http://si.ua.es/en/wifi/eduroam/peap/eduroam-installation-for-android.html However, the issue is simple, you have to go to wifi settings, and add a new network ...

The CACert Application should work; it doesn't work on older devices. You may also want to use the curated list the Guardian Project puts out: rationale here; direct link here. Requires 2.2 or newer.

To be honest I had never removed a cert before but I've added my own and it looks like it's the same process. It's basically: use Linux (or a vm of Linux) install bouncycastle (java SSL library) download the cacerts.bks files from the device use keytool -delete command to remove the cert from cacerts.bks verify that it worked with keytool push the ...

First: Android understand only binary format of CA and only with file format *.crt. Second: Android understand user certificate only in *.p12 file format. So You can check whether your CA file binary or text very simple: open it with any text editors^ If there something like 0‚ i0‚ Т , then it is binary. If you see something like Certificate: Data: ...