2.2.1 Request Format

The ICertPassage Remote Protocol is a simple request-response pattern between the client and the server. The client MUST send the certificate request using one of the following ASN.1 DER encoded message formats:

  • PKCS #10 as specified in [RFC2986].

  • Cryptographic Message Syntax (CMS) as specified in [RFC3852].

  • Certificate Management Messages over CMS (CMC) as specified in [RFC2797].

Details are as specified in [MS-WCCE] section 2.2.2.6. Each format contains a set of attributes and extensions describing the request.<2>