Cisco Cisco TelePresence Video Communication Server Expressway
Appendix 4 – Decoding certificates
Cisco VCS Deployment Guide: Certificate creation and use with Cisco VCS
Page 32 of 33
Appendix 4 – Decoding certificates
Decoding certificates using OpenSSL
A PEM file (e.g. “
cert.pem
”) can be decoded by issuing the following command:
openssl x509 -text -in cert.pem
A DER file (e.g. “
cert.cer
”) can be decoded by issuing the following command:
openssl x509 -text –inform DER -in cert.cer
Decoding certificates using Firefox
The certificate in use for a website being visited can be viewed in Firefox by clicking on the security
information button on the address bar, and then selecting “More Information”.
information button on the address bar, and then selecting “More Information”.