Difference between revisions of "Certificate Request"

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==Context==
 
==Context==
 
* The Internet runs on [[Trust]] which is provided by [[Certificates]] which are provided by a [[Certificate Authority]] that is trusted by the [[User Agent]] which is typically a web [[Browser]].
 
* The Internet runs on [[Trust]] which is provided by [[Certificates]] which are provided by a [[Certificate Authority]] that is trusted by the [[User Agent]] which is typically a web [[Browser]].
* Client certificates where the primary reason for the create of the [[Public Key Infrastructure]] and the reason for [[Privacy Enhanced Mail]]
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* Client certificates where the primary reason for the create of the [[Public Key Infrastructure]] and the reason for Privacy Enhanced Mail ([[PEM]]).
  
 
==Solution==
 
==Solution==

Revision as of 18:35, 31 December 2022

Full Title

The first step for acquiring a certificate is to create a Certificate Request.

Context

Solution

Multiple Signers and the Microsoft IX509CertificateRequestPkcs7 interface

The IX509CertificateRequestPkcs7 interface represents a PKCS #7 certificate message syntax (CMS) object. PKCS #7 defines the format of messages sent to a certification or registration authority to request a public-key certificate. The IX509CertificateRequestPkcs7 interface can be confusing because its implementation does not perfectly mirror the way most security professionals think about the PKCS #7 standard. To avoid this confusion, keep the following points in mind:

  • Although a PKCS #7 message is used to wrap a CMC request, an IX509CertificateRequestPkcs7 object cannot contain a IX509CertificateRequestCmc object. Instead, the IX509CertificateRequestCmc interface inherits and implements the IX509CertificateRequestPkcs7 interface. As implemented, a CMC request is therefore a PKCS #7 SignedData object that contains CMC content, a primary signature that is either null-signed or key-based, and zero or more certificate-based signatures. By contrast, a PKCS #7 request is a SignedData object that contains PKCS #10 content (see the next item in this list) and has exactly one certificate-based signature.
  • An IX509CertificateRequestPkcs7 must contain an IX509CertificateRequestPkcs10 object. The main advantage of wrapping a PKCS #10 request in a PKCS #7 message is the ability to add multiple signers. The PKCS #10 request is signed by the associated private key, and the PKCS #7 message that wraps the PKCS #10 request is also signed. This second signer uses the certificate being renewed (for a renewal request) or the enrollment agent certificate (for an enroll-on-behalf-of request).
  • You can create and enroll a stand-alone IX509CertificateRequestPkcs10 certificate request without wrapping it in an IX509CertificateRequestPkcs7 object.

References

Other Material

  • The wiki page on Privacy Risk shares some content with this page as privacy risk is becoming a significant factor in Conduct Risk.
  • The wiki page on Privacy Tolerance speaks to a particular area where Conduct Risk can help select an appropriate acceptance level for risk.