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grid-ca-create - Online in the Cloud

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This is the command grid-ca-create that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



grid-ca-create - Create a CA to sign certificates for use on a grid


grid-ca-create [ -h | -help | -usage | -version | -versions ] [ -openssl-help]

grid-ca-create [ OPTIONS ] [ OPENSSL-OPTIONS ]


The grid-ca-create program creates a self-signed CA certificate and related files needed
to use the CA with other Globus tools. The grid-ca-create program prompts for information
to use to generate the CA certificate, but the prompts may be avoided by using the command
line options.

By default, the grid-ca-create program creates the self-signed CA certificate, installs it
on the current machine in its trusted certificate directory, and creates a source tarball
which can be used to generate an RPM package for the CA. If the RPM package is installed
on a machine, users on that machine can create certificate requests for user, host, or
service identity certificates to be signed by the CA certificate generated by running

If run as a privileged user, the grid-ca-create program creates the CA certificate and
support files in the CA certificate and signing policy are installed in the
/etc/grid-security directory. Otherwise, the files are


The full set of command-line options to grid-ca-create follows. In addition to these,
unknown options will be passed to the openssl command when creating the self-signed

-help, -h, -usage
Display the command-line options to grid-ca-create and exit.

-version, -versions
Display the version number of the grid-ca-create command. The second form includes
more details.

Overwite existing CA in the destination directory if one exists.

-bits BITS
Create a CA certificate with a BITS long RSA key [4096]

Run in non-interactive mode. This will choose defaults for parameters or those
specified on the command line without prompting. This option also implies -force.

Create the CA in DIRECTORY. The DIRECTORY must not exist prior to running

-subject SUBJECT
Use SUBJECT as the subject name of the self-signed CA to create. If this is not
specified on the command-line, grid-ca-create will default to using the subject name
cn=Globus Simple CA, ou=$HOSTNAME, ou=GlobusTest, o=Grid.

-email ADDRESS
Use ADDRESS as the email address of the CA. The default instructions generated by
grid-ca-create tell users to mail the certificate request to this address. If this is
not specified on the command-line, grid-ca-create will default to $LOGNAME@$HOSTNAME.

-days DAYS
Set the default lifetime of the self-signed CA certificate to DAYS. If not set, the
grid-ca-create program will default to 1825 days (5 years).

Use the string PASSWORD to protect the CA’s private key. This is useful for automating
Simple CA, but may make it easier to compromise the CA if someone obtains a shell on
the machine storing the CA’s private key.

Disable building a source tarball for distributing the CA’s public information to
other machines. The source tarball can be created later by using the grid-ca-package

Create a binary GPT package containing the new CA’s public information. The package
will be created in the current working directory. This package can be deployed by with
the gpt-install tool.

Create a binary GPT package containing the new CA’s public information that is
backward-compatible with GPT 3.2. Packages created in this manner will work with
Globus Toolkit 2.0.0-5.0.x.


Create a simple CA in $HOME/SimpleCA:

% grid-ca-create -noint -dir $HOME/SimpleCA

C e r t i f i c a t e A u t h o r i t y S e t u p

This script will setup a Certificate Authority for signing Globus
users certificates. It will also generate a simple CA package
that can be distributed to the users of the CA.

The CA information about the certificates it distributes will
be kept in:


The unique subject name for this CA is:

cn=Globus Simple CA, ou=simpleCA-grid.example.org, ou=GlobusTest, o=Grid

Insufficient permissions to install CA into the trusted certifiicate
directory (tried ${sysconfdir}/grid-security/certificates and
Creating RPM source tarball... done


The following environment variables affect the execution of grid-ca-create:

Non-standard installation path of the Globus toolkit.

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