Convert DER .cer format to Base64 .CER
I have exported my certificates in DER encodig (with the extension .cer).
Is there a way to convert those certificates in Base-64 encoding (with the same extension)?
Thanks
To convert from a DER to a base64, you can use certutil :
certutil -encode filename.cer newfilename.cer
And from a base64 to a DER, you can use :
certutil -decode filename.cer newfilename.cer
As you have the openssl tag on your question, you should use:
openssl x509 -inform der -in infile.cer -out outfile.cer
In the reverse direction:
openssl x509 -outform der -in infile.cer -out outfile.cer