Gengsheng
Level 1 (1 points)

Q: How do I delete outdated S/MIME certificates in my iphone 5s

I have the following problem with my iPhone 5S (iOS 8.1.2):

 

I am using S/MIME for email encryption. Therefore I have cerfiicates installed for certain receiver email addresses.

Some of those certificates are expired. But it is impossible to install a new valid certificate. The iPhone email application continues to use the old certificate (public key) of the receiver for encrypting the emails.

 

How can I delete the outdated certificates?

 

I already reset the iPhone to factory settings and restored from backup. However the certificates appear to be saved in the backup as well.

iPhone 5s, iOS 8.1.2, S/MIME, certificates

Posted on Jan 4, 2015 11:07 AM

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Gengsheng

Q: How do I delete outdated S/MIME certificates in my iphone 5s

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  • by Greg Kolanek,

    Greg Kolanek Greg Kolanek Apr 29, 2016 2:53 AM in response to vukodlak75
    Level 1 (76 points)
    Apr 29, 2016 2:53 AM in response to vukodlak75

    Did you receive any response regarding the bug report?

  • by elsepa,

    elsepa elsepa May 13, 2016 9:20 AM in response to Gengsheng
    Level 1 (4 points)
    May 13, 2016 9:20 AM in response to Gengsheng

    In Settings > General > Profiles check for the expired certificate/profile you would like to delete.  Tap the profile and you'll see a remove option.  If you have no old profiles the Profiles option doesn't even appear under General Settings.  Because my certificate was associated with a profile it just hangs on to the old certificate.  I was then able to send a signed email to my iPhone from my MBP.  Unfortunately I can see the certificate and hit install but it just never actually installs so still searching for a complete solution.

  • by elsepa,

    elsepa elsepa May 13, 2016 10:01 AM in response to elsepa
    Level 1 (4 points)
    May 13, 2016 10:01 AM in response to elsepa

    Ok quick edit - I followed the instructions on the site noted below to install the certificate and it worked perfectly.  I had to use a second secure email and password protected the .p12 but it worked.... macwhiz.com/blog/2014/11/18/apple-s-mime

  • by Jamez,

    Jamez Jamez Jun 28, 2016 8:40 AM in response to elsepa
    Level 1 (4 points)
    Jun 28, 2016 8:40 AM in response to elsepa

    Thanks for that link, I think the procedure the poster mentions is preferable to deleting old profiles as, I believe, by removing your old certificate you will no longer be able to read any e-mails that might have been sent to you and encrypted using your old certificate! Instead, you can select the certificate you want to use for signing and encrypting.

     

    Great post!

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