Xbase++ Requires Chilkat v11.0.0+

DKIM Signature using Windows Current User Certificate Store

See more DKIM / DomainKey Examples

This is a Windows-specific example to load a certificate from the Current User (registry-based) certificate store, and then use the certificate's associated private key for a DKIM signature. Xbase++

LOCAL nSuccess
LOCAL oCert
LOCAL oPrivKey
LOCAL oDkim

nSuccess := 0

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

oCert := CreateObject("Chilkat.Cert")

//  The LoadByCommonName method searches the Windows Local Machine and Current User 
//  registry-based certificate stores for a certificate having the common name specified. 
//  If found, the certificate is loaded and ready for use.
nSuccess := oCert:LoadByCommonName("My Certificate ABC")
IF (nSuccess == 0)
    ? oCert:LastErrorText
    oCert:destroy()
    RETURN
ENDIF

//  The certificate must have an associated private key installed, and it must be a
//  private key that has been marked "exportable" when it was originally installed.
IF (.NOT. oCert:HasPrivateKey())
    ? "This certificate does not have a private key available."
    oCert:destroy()
    RETURN
ENDIF

oPrivKey := CreateObject("Chilkat.PrivateKey")
nSuccess := oCert:GetPrivateKey(oPrivKey)
IF (nSuccess == 0)
    ? oCert:LastErrorText
    oCert:destroy()
    oPrivKey:destroy()
    RETURN
ENDIF

oDkim := CreateObject("Chilkat.Dkim")

//  Load the private key into the DKIM object:
nSuccess := oDkim:SetDkimPrivateKey(oPrivKey)
IF (nSuccess == 0)
    ? oDkim:LastErrorText
    oCert:destroy()
    oPrivKey:destroy()
    oDkim:destroy()
    RETURN
ENDIF

//  The private key has been loaded into the DKIM object.  See the other DKIM
//  examples for guidance on how to create a DKIM signature...

oCert:destroy()
oPrivKey:destroy()
oDkim:destroy()