Solved

How to check whether given .pem file is public key or private key

Posted on 2011-02-16
6
599 Views
Last Modified: 2012-05-11
Hello, I have one .pem file and I would like to know whether it is public or private key.. Kindly let me know the openssl command to find whether it is Private or public key. I am having linux box (Ubuntu). Thanks!
0
Comment
Question by:beer9
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 6

Accepted Solution

by:
Bxoz earned 500 total points
ID: 34910672
Do a cat on your different .pem
the private key should be like that
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
 
0
 

Author Comment

by:beer9
ID: 34910978
Thanks Bxoz? Do we have openssl command to check whether it is private/public key and also whether it uses a RSA or DSA key algorithm? Thanks!
0
 
LVL 6

Expert Comment

by:Bxoz
ID: 34911362
I don't find such function in openssl, you have all the information if you edit  or display (cat, vi, nano) your .pem files

Why do you want use openssl to do this ?
0
Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

 

Author Comment

by:beer9
ID: 34944290
Thanks Bxoz, I have another question. Is it always true that a private key has to be RSA?? I mean it would start with "-----BEGIN RSA PRIVATE KEY-----"? Thanks!
0
 
LVL 6

Expert Comment

by:Bxoz
ID: 34946013
No you can have for example DSA private Key

openssl dsaparam -out dsaparam.pem 2048
openssl gendsa -des3 -out privkey.pem dsaparam.pem

Open in new window

-----BEGIN DSA PRIVATE KEY-----

http://www.openssl.org/docs/HOWTO/keys.txt
0
 

Author Closing Comment

by:beer9
ID: 34987029
Thank you! :-)
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

SSL stands for “Secure Sockets Layer” and an SSL certificate is a critical component to keeping your website safe, secured, and compliant. Any ecommerce website must have an SSL certificate to ensure the safe handling of sensitive information like…
Microservice architecture adoption brings many advantages, but can add intricacy. Selecting the right orchestration tool is most important for business specific needs.
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question