NAME
grid-proxy-init - Generate a new proxy certificate
SYNOPSIS
grid-proxy-init [-help] [-usage] [-version]
grid-proxy-init [-debug] [-q] [-verify]
[[-valid HOURS:MINUTES] | [-hours HOURS]]
[-cert CERTFILE] [-key KEYFILE] [-certdir CERTDIR]
[-out PROXYPATH] [-bits BITS]
[-policy POLICYFILE]
[[-pl POLICY-OID] | [-policy-language POLICY-OID]]
[-path-length MAXIMUM] [-pwstdin] [-limited]
[-independent] [[-draft] | [-old] | [-rfc]]
DESCRIPTION
The grid-proxy-init program generates X.509 proxy certificates derived
from the currently available certificate files. By default, this
command generates a RFC 3820[1] Proxy Certificate with a 512 bit key
valid for 12 hours in a file named /tmp/x509up_uUID. Command-line
options and variables can modify the format, strength, lifetime, and
location of the generated proxy certificate.
X.509 proxy certificates are short-lived certificates, signed usually
by a user´s identity certificate or another proxy certificate. The key
associated with a proxy certificate is unencrypted, so applications can
authenticate using a proxy identity without providing a passphrase.
Proxy certificates provide a convenient alternative to constantly
entering passwords, but are also less secure than the user´s normal
security credential. Therefore, they should always be user-readable
only (this is enforced by the GSI libraries), and should be deleted
after they are no longer needed.
This version of grid-proxy-init supports three different proxy formats:
the old proxy format used in early releases of the Globus Toolkit up to
version 2.4.x, an IETF draft version of X.509 Proxy Certificate profile
used in Globus Toolkit 3.0.x and 3.2.x, and the RFC 3820 profile used
in Globus Toolkit Version 4.0.x and 4.2.x. By default, this version of
grid-proxy-init creates an RFC 3820 compliant proxy. To create a proxy
compatible with older versions of the Globus Toolkit, use the -old or
-draft command-line options.
The full set of command-line options to grid-proxy-init are:
-help, -usage
Display the command-line options to grid-proxy-init.
-version
Display the version number of the grid-proxy-init command
-debug
Display information about the path to the certificate and key used
to generate the proxy certificate, the path to the trusted
certificate directory, and verbose error messages
-q
Suppress all output from grid-proxy-init except for passphrase
prompts.
-verify
Perform certificate chain validity checks on the generated proxy.
-valid HOURS:MINUTES, -hours HOURS
Create a certificate that is valid for HOURS hours and MINUTES
minutes. If not specified, the default of twelve hours and no
minutes is used.
-cert CERTFILE, -key KEYFILE
Create a proxy certificate signed by the certificate located in
CERTFILE using the key located in KEYFILE. If not specified the
default certificate and key will be used. This overrides the values
of environment variables described below.
-certdir CERTDIR
Search CERTDIR for trusted certificates if verifying the proxy
certificate. If not specified, the default trusted certificate
search path is used. This overrides the value of the X509_CERT_DIR
environment variable
-out PROXYPATH
Write the generated proxy certificate file to PROXYPATH instead of
the default path of /tmp/x509up_uUID.
-bits BITS
When creating the proxy certificate, use a BITS bit key instead of
the default 512 bit keys.
-policy POLICYFILE
Add the certificate policy data described in POLICYFILE as the
ProxyCertInfo X.509 extension to the generated proxy certificate.
-pl POLICY-OID, -policy-language POLICY-OID
Set the policy language identifier of the policy data specified by
the -policy command-line option to the oid specified by the
POLICY-OID string.
-path-length MAXIMUM
Set the maximum length of the chain of proxies that can be created
by the generated proxy to MAXIMUM. If not set, the default of an
unlimited proxy chain length is used.
-pwstdin
Read the private key´s passphrase from stdin instead of reading
input from the controlling tty. This is useful when scripting
grid-proxy-init.
-limited
Create a limited proxy. Limited proxies are generally refused by
process-creating services, but may be used to authorize with other
services.
-independent
Create an independent proxy. An independent proxy is not treated as
an impersonation proxy but as a separate identity for authorization
purposes.
-draft
Create a IETF draft proxy instead of the default RFC 3280-compliant
proxy. This type of proxy uses a non-standard proxy policy
identifier. This might be useful for authenticating with older
versions of the Globus Toolkit.
-old
Create a legacy proxy instead of the default RFC 3280-compliant
proxy. This type of proxy uses a non-standard method of indicating
that the certificate is a proxy and whether it is limited. This
might be useful for authenticating with older versions of the
Globus Toolkit.
-rfc
Create an RFC 3820-compliant proxy certificate. This is the default
for this version of grid-proxy-init.
EXAMPLES
To create a proxy with the default lifetime and format, run the
grid-proxy-init program with no arguments. For example:
% grid-proxy-init
Your identity: /DC=org/DC=example/CN=Joe User
Enter GRID pass phrase for this identity:
Creating proxy .................................. Done
Your proxy is valid until: Thu Mar 18 03:48:05 2010
To create a stronger proxy that lasts for only 8 hours, use the -hours
and -bits command-line options to grid-proxy-init. For example:
% grid-proxy-init -hours 8 -bits 1024
Your identity: /DC=org/DC=example/CN=Joe User
Enter GRID pass phrase for this identity:
Creating proxy .................................. Done
Your proxy is valid until: Thu Mar 17 23:48:05 2010
ENVIRONMENT VARIABLES
The following environment variables affect the execution of
grid-proxy-init:
X509_USER_CERT
Path to the certificate to use as issuer of the new proxy.
X509_USER_KEY
Path to the key to use to sign the new proxy.
X509_CERT_DIR
Path to the directory containing trusted certifiate certificates
and signing policies.
FILES
The following files affect the execution of grid-proxy-init:
$HOME/.globus/usercert.pem
Default path to the certificate to use as issuer of the new proxy.
$HOME/.globus/userkey.pem
Default path to the key to use to sign the new proxy.
COMPATIBILITY
For more information about proxy certificate types and their
compatibility in GT, see
http://dev.globus.org/wiki/Security/ProxyCertTypes.
SEE ALSO
grid-proxy-destroy(1), grid-proxy-info(1)
AUTHOR
University of Chicago
NOTES
1. RFC 3820
http://www.ietf.org/rfc/rfc3820.txt