Hey,
I tried using this method following is the flow.
IF CA: TRUE
If Self Signed
ROOT
else
Intermediate
else
Personal
When i try parsing the PKCS7 (.p7b) files, then for Intermediate CA
Certifites I get that its a personal Certificate?
Is there something different that i need to do for p7b file format?
Thanks.
// Harshvir
On Fri, Sep 16, 2011 at 2:33 PM, Jakob Bohm <jb-open...@wisemo.com> wrote:
> On 9/16/2011 9:02 PM, Harshvir Sidhu wrote:
>
>> I already tried this command, but its not giving any information showing
>> wheter its a root certificate or a client certificate.
>> - Harshvir
>> On Fri, Sep 16, 2011 at 1:53 PM, Jakob Bohm <jb-open...@wisemo.com<mailto:
>> jb-open...@wisemo.com>**> wrote:
>>
>> On 9/16/2011 7:58 PM, Harshvir Sidhu wrote:
>>
>> Hi,
>> In openssl is there some method using which i can find
>> whether the cerficiate in a file a Client Certificate or a
>> CA/Root Certificate?
>> - H S
>>
>> Try the following command, at look for the CA property and also see
>> if the certificate lists itself or someone else as issuer:
>>
>> openssl x509 -in somecert.cer -noout -text >somecert.txt
>>
>> (somecert.txt will then contain a nice human readable printout of
>> the certificate)
>>
>> Look for the following three things in somecert.txt:
>
> 1. Look at the "Issuer:" and "Subject:" lines.
>
> If they are identical, this is a self-signed certificate and thus
> either a CA root or a useless test certificate.
>
> If they are different this is either an end certificate (client or
> server)
> or an intermediary CA.
>
> 2. Look under "X509v3 extensions:" for "X509v3 Basic Constraints:".
>
> If it is there and the next line says "CA:TRUE", it is a CA.
>
> If it is there and the next line says "CA:FALSE", it is
> an end certifcate (client or server).
>
> If it is not there, and the next item below is not there either, it is
> an end certificate (client or server).
>
> 3. Look under "X509v3 extensions:" for "X509v3 Key Usage:".
>
> If it is there and the next line includes the phrase "Certificate Sign",
> it is a CA.
>
> If it is there and the next line does not include the phrase
> "Certificate Sign",
> it is an end certificate (client or server).
>
> If it is not there, and the item above is not there either, it is
> an end certificate (client of server).
>
>
>
>
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