Solved

How to find type of cert?

Posted on 2011-02-16
3
388 Views
Last Modified: 2012-05-11
I have a file without extension, Using openssl command how can I find whether it is p12, der, cer, pem csr?? Kindly let me know if there is a way to find it. Thanks!
0
Comment
Question by:beer9
3 Comments
 
LVL 4

Expert Comment

by:florjan
ID: 34914096
.pem is private key that you should keep safe
.csr is certificate signing request
.cer is certificate
0
 
LVL 2

Accepted Solution

by:
nimda7 earned 500 total points
ID: 34914203
try this:
head <filename>
if output  like
-----BEGIN CERTIFICATE-----                                                                      
MIIEGDCCAwCgAwIBAgIBATANBgk..
.and some HEX
it's a CER/CRT/PEM

if output  like
-----BEGIN RSA PRIVATE KEY-----
MIIEowIBAAKCAQEA22HoOSyXVvUcJ8G4
.and some HEX
it's a KEY

if output  like
-----BEGIN CERTIFICATE REQUEST-----                                            
MIICrjCCAZYCAQAwaTELMAkGA1UEBhMCVVMxCzA
.and some HEX
it's a CSR

If You get some bougus - try this
openssl x509 -inform DER -in <filename> -noout -text
if it's get readable output about certificate - it's in DER format

or
openssl pkcs12 -in <filename> -info -noout
in this case - if file is a p12 - You may be prompted for password. If so - type correct password for this file and gets come info about it
0
 

Author Closing Comment

by:beer9
ID: 34944258
Thank you! :-)
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

#SSL #TLS #Citrix #HTTPS #PKI #Compliance #Certificate #Encryption #StoreFront #Web Interface #Citrix XenApp
Since pre-biblical times, humans have sought ways to keep secrets, and share the secrets selectively.  This article explores the ways PHP can be used to hide and encrypt information.
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

863 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

Need Help in Real-Time?

Connect with top rated Experts

24 Experts available now in Live!

Get 1:1 Help Now