Help with ssl certificate

Operating Systems & Open Source Linux
1

Hey guys

I have a p7b certificate that needs to be converted to a PEM certificate since I'm using linux mint 17.I tried to convert it online on https://www.sslshopper.com/ssl-converter.html, didn't work.

Then I tried to do it manually in the terminalthis is the output

francesco@francesco-X55A ~/Scaricati $ ls
certificatodidattica.p7b
francesco@francesco-X55A ~/Scaricati $ openssl pkcs7 -print_certs -in certificatodidattica.p7b -out certificate.cer
unable to load PKCS7 object
3074422460:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:703:Expecting: PKCS7

please I really need help

2

Your output type seems to be incorrect. That or the formatting is playing hell.

Try:

openssl pkcs7 -print_certs -in certificate.p7b -out certificate.pem

This should be all you need, just obviously swap out the input file name (and change the out to something sensible)

3

Just tried, the output keeps saying "unable to load pkcs7 object"