Intel AMT Features > Access Monitor > Use Cases > Set the Signing Key Material
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Set the Signing Key Material

The following steps describe how to set the certificate and key used to generate an audit log signature when the Auditor requests an export of a signature. In pre-8.0 releases, this is a prerequisite to assigning an Audit Log. Starting in Release 8.0, this is necessary only for exporting the audit log signature.

1.  Retrieve the instance of AMT_AuditLog, where the “Name” key equals “Intel(r) AMT:Audit Log”.

2.  Invoke AMT_AuditLog.SetSigningKeyMaterial.


The SigningMechanismType parameter expected by the SetSigningKeyMaterial method is ignored by the Intel AMT but you must give it a value (for example 0).


Click here for a snippet demonstrating this step

You can execute this snippet by inserting it into the execution template found here.


$auditLogRef =$wsmanConnectionObject.NewReference("SELECT * FROM AMT_AuditLog WHERE Name='Intel(r) AMT:Audit Log'")

$inputObject =$auditLogRef.CreateMethodInput("SetSigningKeyMaterial")

$inputObject.SetProperty("SigningMechanismType","0") # '0' = RSA_SHA1

$signingKey =# A signing key in base64 format.


$lengthOfCertificates =  # The length of the certificate in Hex format / 2


$certificates =# Certificate in base64 format.


$outputObject =$auditLogRef.InvokeMethod($inputObject)

$returnValue =$outputObject.GetProperty("ReturnValue")



Instance Diagram

Classes Used in This Flow


SDK Sample

If there is a sample demonstrating this flow, it is included in the SDK installation file. See SDK Installation Layout for details.


See Also:

   About the Auditor User

   Enabling Auditing

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