Questions tagged [certificates]

A web infrastructure construct that facilitates the trust relationship between a web site as information provider and a client's web client (browser) as information consumer. It contains elements to satisfy authentication to satisfy requirements that parties to the connection are who they claim to be, and assist in handshaking for paired encryption methods to satisfy secure communication.

Filter by
Sorted by
Tagged with
61
votes
8answers
268k views

How do you import CA certificates onto an Android phone?

I want to connect to my University's wireless using my Nexus One. When I go to "Add Wi-Fi network" in Wireless Settings I fill in the Network SSID and select 802.1x Enterprise for the security and ...
31
votes
3answers
34k views

How do I get rid of “Network may be monitored” in KitKat?

Ever since I've installed my own CA in the key store I'm getting warnings that the network may be monitored. Well, I guess that's a valid warning if I don't trust these certificates, but I really ...
24
votes
5answers
44k views

Certificate Install without mandatory PIN lockscreen

Google Support says: The type of lock that's acceptable may be predetermined by your system administrator. Where I can define what's acceptable? I can regenerate the certificate if needed. So I ...
21
votes
1answer
77k views

What Trusted Root CAs are included in Android by default?

There doesn't seem to be a central Android resource that lists the Trusted Root CAs included in the OS or default browser (related question on SO), so how can I find out which are included on my phone ...
21
votes
3answers
43k views

How do I install a user certificate?

I have my own Root certificate that signs user certificates. I have a site that will only allow you on with a user certificate which is signed by the root ca. I have managed to get this site working ...
17
votes
1answer
27k views

self-signed certificate install claims success, but android acts as if cert isn't there

I am trying to install the self-signed certificate for my web server in Android 4.3. I have the .crt file in the root of the SD card (which is actually emulated as I have no SD card in the slot). To ...
14
votes
1answer
20k views

How to export SSL certificate from Android, Chrome

I have a Nexus 5 with the latest Android 4.4.2. I'm registered on using Chrome . They use client certificates to authenticate the user. I installed the certificate and could successfully use the site ...
13
votes
2answers
33k views

Unable to Install Certificate

I am trying to install this certificate on a Google Nexus 7 tablet. I have copied the certificate file (from Win7x64) onto its internal storage and opened it in a file manager to install it. This ...
12
votes
5answers
86k views

How can I remove trusted CAs on Android?

From the current fallout around DigiNotar (in short, a Root Certificate Authority that has been hacked, fake HTTPS certificates issued, MITM attacks very likely), there are some parts concerning ...
10
votes
3answers
71k views

How to install a web certificate on an Android device?

To gain access to WIFI at university I have to login with my user/pass credentials. The certificate of their website (the local home page that asks for the credentials) is not recognized as a trusted ...
8
votes
2answers
7k views

How to delete a single (SSL root) certificate?

There is only a way to purge the whole certificate store (for SSL root certificates like those used for 802.1x). Is there an app, setting or (as a last resort) command line to remove a single ...
7
votes
2answers
656 views

How does Android handle wifi root CAs? Should they be a security concern?

My university requires me to install a custom root CA to connect to their wifi network. When I installed it on my phone, it let me specify "Wifi" or "VPN and apps". I chose wifi, and was able to ...
6
votes
6answers
12k views

Install CA without having to activate screen lock

I have a Nexus 7 (Android 4.1.1) and I want to add a CA (Certificate Authority) to my device to use it for the ssl-connection to my mail server. The CA is self-signed. The Certificate does only ...
5
votes
0answers
1k views

How to remember/cache a client certificate

I support a web-application that requires an https connection with client certificates as part of the authentication scheme. On most browsers (Desktop clients, iOS Safari, etc) if you are prompted for ...
5
votes
0answers
1k views

Does Samung Galaxy S2 support the use of Client Certificates for ActiveSync?

Does Samung Galaxy S2 support the use of Client Certificates for ActiveSync ? Most other Android phones need to rely on TouchDown or other third party applications. Can anyone confirm if this is ...
4
votes
2answers
6k views

What causes the error “No certificate found in USB storage.” when trying to import a certificate?

I have a Samsung S3 with Android 4.04 and to get on my WiFi at work I need to install a certificate .p12 file. So, I navigate to "Security and lock screen"-->"Install from device storage." BUT ...
4
votes
0answers
1k views

Certificate Authority installation doesn't work

I've seen many many posts* lined to my problem, although none of them seems to refer to my bug. I set up my small PKI (for Web, mail etc.) and now try to import my CA .crt file to my Android device. ...
4
votes
0answers
4k views

Importing SSL certificate for email

I am having trouble importing an SSL CA certificate to authenticate my mail server. My mail server is run by Dreamhost, which offers TLS on their IMAP/SMTP servers, but with a certificate signed only ...
4
votes
1answer
10k views

Getting latest update of certificate/credential/ssl store

Hy, I realize sometimes when browsing with https shows the certificate is not valid "This certificate is not from a trusted authority", clicking continue will just poping up the same warning. That ...
3
votes
2answers
11k views

How to connect to PEAP MSCHAPv2 Wi-Fi using system certificates in Android 7.1 Nougat?

Android 7.1 has introduced some changes to Wi-Fi connection interface. In 6.0, when selecting PEAP MSCHAPv2 in Wi-Fi connection interface, there were no CA certificates available (unless some had been ...
3
votes
1answer
908 views

is it possible to use a CA-Cert for serverauthentification in WPA enterprise networks with android 2.2+?

I just wanted to know if it is possible with android 2.2+ to use a ca-cert for server auth in WPA-Enterprise networks? A fried told me it is not possible, but this would mean there would be a mayor ...
3
votes
1answer
2k views

Is there a way to verify the integrity of a TA partition backup of Xperia phones?

I unlocked the bootloader of my Xperia P (LT22i) before I could take a backup of the TA partition (which stores DRM keys, IMEI code, etc.) Now I've read on several XDA threads and other websites that ...
3
votes
1answer
241 views

Installing cert files and connecting to wifi network on Touchpad running CM9

Hi everyone I am trying to connect to my university wifi eduroam using the settings below: http://www.lboro.ac.uk/it/wireless/technical.html How can I achieve this? So far I've tried saving the crt ...
3
votes
0answers
2k views

How to add a CA to trusted root

Since android 7, apps will not obey the user installed CA certificates anymore. So as a tester, if you want to test and verify issues such as certificate pinning you need to install the custom proxy ...
3
votes
1answer
10k views

How to remove a single client certificate?

Isn't it possible to remove a single client certificate from a device? On a Galaxy S6 running 5.0.2 I can remove all client certificates using: System settings Lock screen and security Other ...
3
votes
0answers
257 views

How do I tell Android to remember which client certificate to use for a given site?

I have a site that requires a client certificate in order to allow access. I've successfully installed a client certificate onto my Android device. When I access the site from Chrome, I'm prompted ...
3
votes
1answer
410 views

Problem importing server certificate to CyanogenMod 9.1

I am having trouble importing a self signed server certificate to my Sony Ericsson Xperia Arc S running CyanogenMod 9.1. I have tried everything that came to mind. First, the usual method: ...
3
votes
0answers
3k views

K9 doesn't like my SSL cert

My mail provider recently updated their SSL certificate and now I'm getting errors in K9 mail when I try to test my server information: java.lang.RuntimeException: java.lang.RuntimeException: error:...
3
votes
0answers
581 views

ICS email app, SSL certificates crash bug

Does anyone have a solution for the following situation: Added Exchange account, tick "Accept all SSL certificates", upon saving the setting the app crashes. Stock ICS, please see log here: https:/...
3
votes
2answers
576 views

Unable to associate company's Wi-Fi certificate with our Wi-Fi network

I have a tablet running Android 4.0.3 that I'm trying to connect to my company's Wi-Fi that uses a security certificate. I've obtained the certificate and successfully installed it on my tablet but ...
2
votes
2answers
33k views

What are all these security certificates on new phone?

This is a new T-Mobile Samsung Galaxy S7. Is it normal to have all these certificates? Many look dodgy. Image resized. Click to see full-version
2
votes
2answers
3k views

How to explain SSL cert validation discrepancy between Chrome and WebView on a modern Android?

(original title: Do some Android vendors ship their own SSL stack implementation?) We've been having (in production) a peculiar HTTPS-related issue lately in our Android app. All calls to our domain ...
2
votes
2answers
12k views

Install company's wireless certificate to Samsung Android 4.0.3. tablet

Trying to install all exported windows WEP Enterprise 802.1X Wireless certificates (.p12 extension) to a Samsung Android 4.0.3 tablet. With no certificate installer, Android certificate was installed ...
2
votes
1answer
2k views

How to install P12 certificates in mobile Firefox?

I successfully imported my .p12 certificate to my two android devices (Galaxy Tab E SM-T560 (Spreadtrum SoC) running Kitkat 4.4.4 and Xiaomi Mi A1 Global Version (SD 625)(was) running (Oreo 8.0.0) Pie ...
2
votes
1answer
196 views

Pop up about security problems

I had a lot of these pop ups and I don't know if it's for real or not.
2
votes
1answer
9k views

No “Use system certificates” when trying to connect to WiFi

I am having a problem connecting to my university Eduroam WiFi. If I understand correctly, in CA certificate I am supposed to select CA certificate if it is there or Use system certificate and input ...
2
votes
1answer
4k views

Android Root Certificates, published list?

For each version of iOS Apple publishes a list of the embedded root certificates: https://support.apple.com/en-us/HT205205 I am unable to find something similar for Android, I am wondering if these ...
2
votes
3answers
10k views

Where to get OpenSSL binary for Android?

I have a Nexus 10 (unlocked & rooted) and I wanted to get the openssl binary on there so I can verify HTTPS certificates: $ openssl s_client -connect <IPADDRESS> However, no matter what I ...
2
votes
0answers
718 views

Automatically verify signature on all Android Exchange emails

I work in an office where everyone uses a digital signature on their emails. I just bought a new LG G3 with 4.4.2 KitKat and whenever someone sends me an email that is signed, it shows up with a body ...
2
votes
0answers
6k views

How to setup Microsoft Exchange on Android? [No certificates found error]

I'm using a Nexus 5 running Android 4.4.4, and when I try to setup my company's email through the Email Android app I get the following error. No certificates found The app Exchange Services ...
2
votes
0answers
317 views

Adding a self-signed certificate to the trusted list? [duplicate]

I have my own self-signed SSL certificate for a website I need to keep relatively secure. I've been able to install my client SSL certificate just fine, but I can't seem to install the server's ...
2
votes
1answer
816 views

Save accepted untrusted certificates on email app (HTC Sensation)

I have a problem with the mail (not gmail) app on my HTC Sensation, that I'm guessing is part of HTC Sense 3. I'm using a server that has an untrusted certificate, and every time I try to refresh my ...
1
vote
1answer
1k views

How can I install a CA cert on my Samsung Nexus?

I have the cert as a .cer file on my Mac, and my phone is connected via USB. How can I install the cert on my device?
1
vote
1answer
932 views

Can't install a new p12 user certificate

I can't import a new company-issued personal certificate in binary .p12 format. The old one worked fine, I have a new one (CA was updated so we had to be issued new ones) that fails the import. Both ...
1
vote
1answer
741 views

Android browser: how to revoke ssl permission on a single site after giving it?

I'm building a website under ssl certificate. It just works on desktops but android browser argues that the ssl authority is not trustworthy. So to see the staging site I told it to just consider it ...
1
vote
1answer
2k views

Android does not download any files from untrusted CA certificate site

I work on a site that serves mobile phones and shares some file. When I publish my site in http everything works great. But when I activate SSL and publish my site via HTTPS with my own certificate, ...
1
vote
1answer
4k views

Android 4.1 unable to connect to Google Play but other wifi functions work - how to fix?

I'm using a Rikomagic 802III running Android 4.1.1, connected to my TV. Until today, I was able to connect to Google Play, and my widgets were showing data. Now, when I open Google Play, I get an ...
1
vote
1answer
11k views

install certificates [duplicate]

I received a .crt certificate to install on my new galaxy tab 10.1. How do I install it? I see that I can "install from USB storage" but couldn't figure out where this storage is.
1
vote
0answers
182 views

Marshmallow: Adding system-wide custom root certificate

On Android 6 if I move my own root CA from /data/misc/user/0/cacerts-added to /system/etc/security/cacerts/ it doesn't work anymore. It is in the system list and active, but my browser says ...
1
vote
0answers
93 views

Mismatching certificate store and used certificates

About 2 weeks ago I've started to experience SSL errors on my Samsung Galaxy S8 (SM-G950F), in various applications (Google Play services, Netflix, Uber and also when browsing to certain HTTPS domains)...