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Certificates at MTL

This section contains link to download the MTL Website certificate and instructions on installing the certificate into your browser. This basically tells your browser to trust the MTL website and stop generating pop-up warning messages for the MTL website.

For Mozilla 1.x or Netscape 6.x/7.x

  1. Click here to download the certificate.
  2. The following dialog box will appear.
    Check the Trust this CA to identify web sites checkbox.
    Click on the OK button.
    Netscaoe screencap
  3. Done.

For Internet Explorer 6.x/7.x

  1. Click here to download the certificate.
  2. The following dialog box will appear.
    Click on the Open button.
    IE Cert 1
  3. The following dialog box will appear.
    Click on the Install Certificate button.
    IE Cert 02
  4. The following dialog box will appear.
    Click on the Next button.
    IE Cert 03
  5. The following dialog box will appear.
    Select the Automatically select the certificate store based on the type of certificate.
    Click on the Next button.
    IE Cert 4
  6. The following dialog box will appear.
    Click on the Finish button.
    IE Cert 5
  7. The following warning box will appear.
    Click on the Yes button.
    IE Cert 6
  8. The following dialog box will appear.
    Click on the OK button.
    IE Cert 7

*NOTE* If the last step above fails with an error message instead of the "import was successful" message then try the following steps:

  1. Double click on the file mtl-ca.crt that you saved to your local desktop.
  2. Click on "Install Certificate"
  3. Click "Next"
  4. Choose "Place all certificates in the following store"
  5. Click Browse on the same screen.
  6. Choose "Show physical stores"
  7. Click on the + next to "Trusted Root Certification Authorities" - this should be the second choice in the list.
  8. Click on "Local Computer" (underneath the "Trusted Root Certification Authorities") to highlight it.
  9. Click "OK"
  10. Click "Next"
  11. Click "Finish"

For Mac OS X 10.2.x

*NOTE* Installing a CA under Mac OS X 10.2 is a complicated process that you may not feel comfortable doing on your own. Please feel free to contact the MTL Compute Team (problems@mtl.mit...) for assistance in installing the CA.

  1. Click here to download the certificate.
  2. Open up a Terminal window (double-click the Terminal application in the Applications --> Utilities folder)
  3. In the Terminal window, enter in the following commands to copy the MTL CA to where you need for it to be: 
    % cp <where you downloaded mtl-ca.crt to> ~/Library/Keychains
% sudo cp /System/Library/Keychains/X509Anchors ~/Library/Keychains/X509Anchors
% cd ~/Library/Keychains
% certtool i mtl-ca.crt k=X509Anchors
  4. At this point, the mtl-ca.crt should be added to the X509Anchors file with the message "...certificate successfully imported." Now, copy the X509Anchors keychain back to its original location. 
    % sudo cp ~/Library/Keychains/X509Anchors /System/Library/Keychains/
  5. Done.

For Mac OS X 10.3.x

  1. Click here to download the certificate.
  2. Open up Keychain Access (it's in the Applications --> Utilities folder)
  3. Go to View menu and select Show Keychains
  4. A panel should open up to one side of the Main Keychain Access window. Within this panel, there should be two keychains listed. One is your personal keychain (designated by either your Mac OS X short name or the word login) where your personal certificates and passwords (other than your login password!) are stored. The other keychain is the system keychain which is where we are going to install the MTL Website Certificate. Select this keychain in the panel and click on Unlock in the main Keychain Access window.
  5. Go to the File menu and select Import.... In the dialog box that pops up, go to where you downloaded mtl-ca.crt to and select it. You will have to authenticate as an admin user when the username/password dialog box pops up. After successfully authenticating, the MTL Website Certificate should be successfully installed in the system keychain.
  6. Click on Lock in the main Keychain Access window lock the system keychain. Select your personal keychain in the panel and quit Keychain Access.
  7. Done.

For Mac OS X 10.4.x

  1. Click here to download the certificate.
  2. Open up Keychain Access (it's in the Applications --> Utilities folder)
  3. Click on Show Keychains in the bottom left of the Keychain Access window.
  4. The Keychains panel should open on the top left. Select the x509Anchors keychain.
  5. Click the Padlock icon on the top left to unlock the keychain
  6. Go to the File menu and select Import.... In the dialog box that pops up, go to where you downloaded mtl-ca.crt and select it. You will have to authenticate as an admin user when the username/password dialog box pops up. After successfully authenticating, the MTL Website Certificate should be successfully installed in the x509Anchor keychain.
  7. Click on the Padlock in the main Keychain Access window to lock the x509Anchor keychain. Select your personal keychain in the panel and quit Keychain Access.
  8. Done.

Download Certificate

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Computation

MTL Annual Research Report 2012: View Online