Problems adding specific extensions to signed certificates
sfhacker at hotmail.com
Fri Feb 7 16:02:26 UTC 2020
This is the basics of OpenSSL!
You would like to add extensions to a CSR or the problem arises when signing it?
You create a CSR (without extension file) and then you can check/inspect whether or not it shows the extension(s) you need/want. After that, you can sign the CSR.
> Ok. I'm not really a Linux guy, but I guess that means to do a "man 5 x509v3_config"?
I believe this odd issue has nothing to do with Linux, Mac and/or Windows.
> OK, so I read "man 5 x509v3_config", and it's still not clear to me how I get my extensions added to a req.
Which part is not clear?
> Obviously I'm missing something basic. Can anyone point out what I am doing wrong?
Indeed you are!
We use Windows, the latest OpenSSL version and only one .cnf file. No issues at all.
First, you create a CSR file with the extensions you need/want.
(openssl req -new -config user.cnf -key user.key -out user.csr)
Then, you sign the CSR
(openssl ca -notext -config user.cnf -in user.csr -passin .....)
You could email me your (complete) .cnf file with all the extensions you need and I can run the above commands locally to see whether or not there is something wrong/incomplete with your .cnf file.
[ req_distinguished_name ]
0.domainComponent = localhost
countryName = GB
stateOrProvinceName = London
localityName = Westminster
title = Mr
description = End User Certificate
commonName = testuser
emailAddress = support at winradius.eu
userId = testuser
organizationalUnitName = IT Department
serialNumber = 1234-2020-GB
[ user_cert ]
basicConstraints = critical,CA:false,pathlen:0
keyUsage = critical,keyEncipherment
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid:always,issuer:always
nsCertType = client
extendedKeyUsage = emailProtection
crlDistributionPoints = @crl_dp
authorityInfoAccess = caIssuers;URI:http://localhost/rootca.der
certificatePolicies = ia5org, at policy
From: openssl-users <openssl-users-bounces at openssl.org> on behalf of Michael Leone <turgon at mike-leone.com>
Sent: Saturday, 8 February 2020 2:01 AM
To: openssl-users at openssl.org <openssl-users at openssl.org>
Subject: Re: Problems adding specific extensions to signed certificates
On Thu, Feb 6, 2020 at 5:45 PM Viktor Dukhovni
<openssl-users at dukhovni.org> wrote:
> On Thu, Feb 06, 2020 at 02:36:03PM -0500, Michael Leone wrote:
> > Oh, I can add extensions by signing and using the -extfile option, and
> > specifying a file with the specific options I want to give the
> > certificate. But I don't want to have to use an addon file, I want to
> > add parameters to all signed certificates.
> The documentation of x509(1) which you're using with "-req" as a
> mini-CA, states explicitly:
> -extfile filename
> File containing certificate extensions to use. If not specified
> then no extensions are added to the certificate.
> -extensions section
> The section to add certificate extensions from. If this option is
> not specified then the extensions should either be contained in the
> unnamed (default) section or the default section should contain a
> variable called "extensions" which contains the section to use. See
> the x509v3_config(5) manual page for details of the extension
> section format.
OK, so I read "man 5 x509v3_config", and it's still not clear to me
how I get my extensions added to a req.
I am following thsi example page from RedHat
So what is the secret I am missing? The way I am reading it, in the "[
req ]", section I need to add
x509_extensions = usr_cert # Desired extensions section
and in "[ usr_cert ]", I have added the "KeyUsage" and
"ExtendedKeyUsage" values I want.
which I have done, and which is not giving me what I want.
Obviously I'm missing something basic. Can anyone point out what I am
The example page shows signing using a separate extensions file, which
I can do, and have done, and that gives me those extensions. But why
doesn't it work without that extension file??
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the openssl-users