how to view the contents of a .pem certificate

问题

I am using Java keytool. I have exported a self-signed .pem certificate from my keystore. Is there a command to view the certificate details directly from the .pem file (not of the certificate in the keystore)?

回答1:

Use the -printcert command like this:

keytool -printcert -file certificate.pem

回答2:

An alternative to using keytool, you can use the command

openssl x509 -in certificate.pem -text

This should work for any x509 .pem file provided you have openssl installed.

来源：https://stackoverflow.com/questions/9758238/how-to-view-the-contents-of-a-pem-certificate