How to convert .cer file into cert8.db?

Problem:

How to convert .cer file certificate into cert8.db certificate?

Solution:

1. If you have already exported .cer file, it will not directly convert .cer to cert8.db format.
2. So instead of directly converting, simply convert that .cer into .pk12 and then, use certutil command to import .pk12 to cert8.db extension

For more information regarding converting .pk7 to .cer extension, please read the below url;

http://maniidm.blogspot.in/2014/09/how-do-i-convert-pkcs-7-certificate.html