1. CA cert request: Enrolling device requests and installs CA cert. SCEP Opertion: GetCACert HTTP Header: GET /CertSrv/mscep/mscep.dll/pkiclient.exe?operation=GetCACert&message=SCEPLab HTTP/1.0 Host: 10.0.0.6 2. SCEP server returns the CA cert: In the case of GET operation with a type of GetCACert, the MIME content type returned will depend on whether or not an RA is in use. If there is no RA, only the CA certificate is sent back in the response, and the response has the content type tagged as application/x-x509-ca-cert. If there is an RA, as it is the case in this lab, the RA certificates are sent back together with the CA certificates. The content type is application/x-x509-ca-ra-cert. HTTP Header: HTTP/1.1 200 OK Content-Length: 4170 Content-Type: application/x-x509-ca-ra-cert Server: Microsoft-IIS/8.0 Date: Mon, 29 Apr 2013 09:15:51 GMT Connection: close 3. Device requests an identity certificate: SCEP Operation: PKIOperation HTTP H
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