Self Signed Certificate CSS 11 500

Unanswered Question
Apr 6th, 2007


I have created a self signed certificate on the CSS 11500.

It's a certificate for internal use. How long is this valid.

I used the command:

ssl gencert certkey "cerkey" signkey "signkey" cerfile "password".

I read it is only valid for 30 days? Can i prolong this date?


I have this problem too.
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Gilles Dufour Fri, 04/06/2007 - 06:28

I believe the new cert have a valid date of 1 year. But I'm not 100% sure.

You can export the certificate and use openssl to verify.

If you need a different date, the only solution is create the self signed certificate your self using openssl on a pc.


joquesada Sun, 04/08/2007 - 13:54

Hi Frederik,

A self-signed cert from the CSS is only valid for 30 days and unfortunately, there is no way to extend this.

You can definitely create another cert with the same information as the previous one and use again, but you would need to do it every 30 days. Thanks!



veriton Mon, 03/17/2008 - 11:04

Hello Giles,

I'm interested that your certificate has a year's validity.

I haven't tried this yet but according to the 8.2 docs it looks like only 30 days:

Is this an error in the docs? Which software version is your CSS running?



Gilles Dufour Tue, 03/18/2008 - 07:26


I did the test again today and the date is 1 year with css version 8.20

So the doc is wrong and I will have it corrected.

[[email protected]-1 VER4]# openssl x509 -in /tftpboot/mycertnew -text



Version: 1 (0x0)

Serial Number: 2 (0x2)

Signature Algorithm: md5WithRSAEncryption

Issuer: C=US, ST=SomeState, L=SomeCity, O=A Company Name, OU=Web Administration,[email protected]


Not Before: Mar 18 10:02:16 2008 GMT

Not After : Mar 18 10:02:16 2009 GMT



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