Get certificate detail from public key?

Is there any way to get certificate detail from public key? I had to use Bouncy Castle jar for this but somehow I can't solve thi开发者_运维技巧s problem.

You can use the openssl toolkit to inspect certificates:

$ openssl x509 -in /usr/share/ca-certificates/cacert.org/cacert.org.crt -text
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 0 (0x0)
        Signature Algorithm: md5WithRSAEncryption
...

If you need the results in another environment, you may need to give more details.