Convert between PEM and P12

PEM
It is an ASCII format and can be opened with a text editor. It is used by most SSL-based tools. Key and certificate are two separate files.

P12
Acutally: Pkcs12 is used by most browsers. Key and certificate are in one file.

PEM to P12
You need both the key and the certificate:

[code lang=”bash”]
openssl pkcs12 -export -in usercert.pem -inkey userkey.pem -out bundle.p12
[/code]

P12 to PEM

[code lang=”bash”]
openssl pkcs12 -in bundle.p12 -out userkey.pem -nodes -clcerts
[/code]

The resulting file contains both the key and certificate. Use a text editor to split into two files again.