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attributesopensslcertificatecreation

openssl custom attribute during creation


during the execution of :

openssl req -new

it asked for some attributes:

-----
Country Name (2 letter code) [XX]:IT
State or Province Name (full name) []:Rome
Locality Name (eg, city) [Default City]:Rome
Organization Name (eg, company) [Default Company Ltd]:PP
Organizational Unit Name (eg, section) []:Information Technology
Common Name (eg, your name or your server's hostname) []:test
Email Address []:test at test dot it

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:claudio
An optional company name []:cc

is it possible to add an additional custom attribute during the creation?

Thank you in advance Claudio


Solution

  • 1) login as root
    2) open file openssl.cnf
    3) add your custom attribute in "[new oids]" section
    4) add description in "req_distinguished_name" section
    5) save & close
    6) create your new certificate
    
    [ new oids]
     newCustom=1.2.3.4.5.6
    
    [req_distinguished_name] 
     newCustom             = new custom attibute
    
    openssl req -new -key server.key -out server.csr
    nter pass phrase for server.key:
    You are about to be asked to enter information that will be incorporated
    into your certificate request.
    What you are about to enter is what is called a Distinguished Name or a DN.
    There are quite a few fields but you can leave some blank
    For some fields there will be a default value,
    If you enter '.', the field will be left blank.
    -----
    new custom attribute []: 
    ..
    ..
    ..
    

    I hope this could help!

    Regards Claudio