As a relying party, you should install the DutchGrid CA root certificates in your local trusted certificate store. The way to do this depends on your application software. The DutchGrid Medium-security CA is an IGTF-accredited Classic Authority, and is installed automatically as part of the IGTF Accredited Installation bundle.

Internet Explorer, Netscape 6+, Firefox

Install the DutchGrid MS Root Certificate, and explicitly trust it for installation in the trusted Certification Authority store.
Download the CRL for Netscape.

Netscape 4

Install the DutchGrid MS Root Certificate, and explicitly trust it for installation in the trusted Certification Authority store.

Globus Toolkit 2+

Install the RPM or tgz package from the EUGridPMA web site, or pick the individual files and copy these to /etc/grid-security/certificates:

• 16da7552.0
• 16da7552.r0
• 16da7552.signing_policy
• 16da7552.info
• 16da7552.crl_url

Do remember to periodically retrieve a new CRL, for example using the fetch-crl program provided by the EUGridPMA.

VL-e, LCG, and EGEE managed installations

Install the DutchGrid MS CA via the IGTF Accredited Authority distribution (the default for LCG and EGEE installations), or obtain the RPM package from the accredited/ directory (named "ca_NIKHEF").

Is this certificate valid?

• CRL download
• Search for valid certificates
• OCSP end point