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Updating The Security Certificate For Your Web Browser

You may encounter a situation when accessing a valid UM web site where you get a warning about the security certificate not being from a trusted certificate source. You can choose to ignore this message and click Continue, or create an exception. A better way to deal with this is to update your browser's root security certificate. By updating, you should be able to eliminate the warning window.

1. Delete the old security certificate (if any):
   • Launch Internet Explorer
   • Click Tools then Internet Options
   • On the Internet Options window, select the Content tab and click the Certificates button
   • On the Certificates window, click on the Trusted Root Certification Authorities tab; you should see a list of issuing certificate authorities and the corresponding certificates
     - Scroll through the list to search for UMD College Park root
     - If found, click to select it, then click the Remove button
   • Click Yes
   • Click Yes
2. Get new root security certificate:
   • Type in the URL http://cert.umd.edu
   • Click the install the University Root Certificate link
   • Click the Install DER root certificate (for Internet Explorer or Opera browser)
   • Select Open
   • Click Install Certificate
   • Click Next
     
   • In the Certificate Store window, select the Place all certificates in the following store, then click the Browse button
   • Select Trusted Root Certification Authorities
   • Click OK
   • Click Next
   • Click Finish
   • Click Yes to the You are about to install a certificate... window
   • Click OK in the Import successful window
   • Click OK in the Certificate window to finish

1. Delete the old security certificate (if any):
   • Select Edit -> Preferences -> Privacy & Security -> Certificates
   • In the Certificates window, click on Manage Certificates, then click on Authorities
     - Search for University of Maryland -> Root Certificate Authority v1
   • If found, click Delete
   • Click OK in the Certificate Manager window
2. Get new root security certificate:
   • Go to the URL http://cert.umd.edu
   • Click the install the University Root Certificate link
   • Click the * Install PEM root certificate (for Netscape or Mozilla-based browser)
   • Click all three check boxes:
     • Trust this CA to identify web sites
     • Trust this CA to identify email users
     • Trust this CA to identify software developers
   • Click OK

1. Delete the old security certificate (if any):
   • Select Tools -> Options -> Advanced -> Encryption -> View Certificates
   • Click Authorities button
   • Search for University of Maryland -> Root Certificate Authority v1;
     • If found, click Delete
     • Click OK in the Delete CA Certificates window
2. Get new root security certificate:
   • Go to the URL http://cert.umd.edu
   • Click the install the University Root Certificate link
   • Click the * Install PEM root certificate (for Netscape or Mozilla-based browser)
   • Click all three check boxes:
     • Trust this CA to identify web sites
     • Trust this CA to identify email users
     • Trust this CA to identify software developers.
   • Click OK

1. Delete the old security certificate (if any):
   • Select Tools -> Preferences -> Advanced -> Security
   • Click Manage Certificates button
   • In the Certificate Manager window, click on the Authorities tab
   • Search for University of Maryland -> Root Certificate Authority v1
   • If found, click Delete
   • Click OK in the Delete CA Certificates window
2. Get new root security certificate:
   • Go to the URL http://cert.umd.edu
   • Click the install the University Root Certificate link
   • Click the Install DER root certificate (for Internet Explorer or Opera browser)
     
   • Click OK

1. Get new root security certificate:
   • Go to the URL http://cert.umd.edu
   • Click the install the University Root Certificate link
   • Click the Download MacOSX root installer (for Safari browser, if .dmg file does not automount, double click it)
   • Click Continue
   • Double click on the UMD-CA icon
   • Click on Continue three times
   • Click on Install
   • Click OK

1. Delete the old security certificate (if any):
   • Select Firefox -> Preferences -> Advanced -> Encryption -> View Certificates button
   • In the Certificate Manager window, click on the Authorities tab
   • Search for University of Maryland -> Root Certificate Authority v1
   • If found, click Delete, then OK in the Delete CA Certificates window
2. Get new root security certificate:
   • Go to the URL http://cert.umd.edu
   • Click the install the University Root Certificate link
   • Click the * Install PEM root certificate (for Netscape or Mozilla-based browser)
   • Click all three check boxes:
     • Trust this CA to identify web sites
     • Trust this CA to identify email users
     • Trust this CA to identify software developers
   • Click OK