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       How to download Certificate and CRL(Certificate Revocation List) 

FOR DOWNLOADING CRL

CRL: A periodically issued list, digitally signed by CA or Sub CA containing the serial number of revoked certificate. 

1.For Class 1 individual CRL

  • Click on Mahanagar Telephone Nigam Limited
  • Click on mtnlTrustline
  • Click on mtnlTrustLine Class 1 Individual Subscriber Sub CA
  • Click on certificate tab in properties window
  • To download CRL click on click to down load value
  • Save CRL file with "filename.crl" where filename can be any string of your choice.

2 .For MTNL Class 2 Telephone Subscriber CRL

  • Click on Mahanagar Telephone Nigam Limited
  • Click on mtnlTrustline
  • Click on MTNL Class 2 Telephone Subscriber Sub CA
  • Click on certificate tab in properties window
  • To download CRL click on click to down load value
  • Save CRL file with "filename.crl" where filename can be any string of your choice.

3. For Class3 Individual Subscriber CRL

  • Click on Mahanagar Telephone Nigam Limited
  • Click on mtnlTrustline
  • Click on mtnlTrustLine Class 3 Individual Subscriber Sub CA
  • Click on certificate tab in properties window
  • To download CRL click on click to down load value
  • Save CRL file with "filename.crl" where filename can be any string of your choice.

4. For  Class 3 Server CRL

  • Click on Mahanagar Telephone Nigam Limited
  • Click on mtnlTrustline
  • Click on mtnlTrustLine Class 3 Server Sub CA
  • Click on certificate tab in properties window
  • To download CRL click on click to down load value
  • Save CRL file with "filename.crl" where filename can be any string of your choice.

5.For Class2 IPSec Device CRL

  • Click on Mahanagar Telephone Nigam Limited
  • Click on mtnlTrustline
  • Click on mtnlTrustLine Class 2 IPSec Devices Sub CA
  • Click on certificate tab in properties window
  • To download CRL click on click to down load value
  • Save CRL file with "filename.crl" where filename can be any string of your choice.

Prerequisite: Use Internet Explorer Version 6.0 or above.

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