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Is it possible to extract a certificate chain?


 
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Top Forums UNIX for Dummies Questions & Answers Is it possible to extract a certificate chain?
# 1  
Old 08-24-2011
Is it possible to extract a certificate chain?

Hi all!

I wanted to look at the key length of a certificate chain we have. When I do the conventional export command using keytool I will only get the end user cert.

Code:
keytool -export -alias aliasname -file filename.cer -keystore keystorename

The above code will only give me the end user (the alias) without the intermediate and root CA after I convert the above binary cert to pem format.

Is there anyway to extract the entire certificate chain?
I've tried keytool and openssl but I did not find anything that would allow me to extract a certificate chain from a keystore.

Thanks!
Erin
# 2  
Old 08-25-2011
If you are currently using the certificate on a server, try
Code:
openssl s_client -showcerts -connect www.yourserver.com:443

# 3  
Old 08-25-2011
Thanks fpmurphy!

Worked like a charm Smilie (on my webserver)
I was wondering if it's possible to view a certificate chain from a keystore?

I was trying to find a keystore option within openssl but no luck yet.

I will update this thread if I find anything! Any suggestions would be greatly appreciated!

Regards,
Erin
 

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