| ISIS-MTT-Optional: The certificate requested by the client by inserting the
RetrieveIfAllowed extension in the request, will be returned in this
extension.
ISIS-MTT-SigG: The signature act allows publishing certificates only then,
when the certificate owner gives his explicit permission. Accordingly, there
may be �nondownloadable� certificates, about which the responder must provide
status information, but MUST NOT include them in the response. Clients may
get therefore the following three kind of answers on a single request
including the RetrieveIfAllowed extension:
- a) the responder supports the extension and is allowed to publish the
certificate: RequestedCertificate returned including the requested
certificate
- b) the responder supports the extension but is NOT allowed to publish
the certificate: RequestedCertificate returned including an empty OCTET
STRING
- c) the responder does not support the extension: RequestedCertificate is
not included in the response
Clients requesting RetrieveIfAllowed MUST be able to handle these cases. If
any of the OCTET STRING options is used, it MUST contain the DER encoding of
the requested certificate.
RequestedCertificate ::= CHOICE {
Certificate Certificate,
publicKeyCertificate [0] EXPLICIT OCTET STRING,
attributeCertificate [1] EXPLICIT OCTET STRING
}
|
