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(DataFlex) DKIM Signature using Windows Current User Certificate StoreThis 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. Note: This example requires Chilkat v11.0.0 or greater.
Use ChilkatAx-win32.pkg Procedure Test Boolean iSuccess Handle hoCert Variant vPrivKey Handle hoPrivKey Handle hoDkim String sTemp1 Boolean bTemp1 Move False To iSuccess // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Get Create (RefClass(cComChilkatCert)) To hoCert If (Not(IsComObjectCreated(hoCert))) Begin Send CreateComObject of hoCert End // 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. Get ComLoadByCommonName Of hoCert "My Certificate ABC" To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoCert To sTemp1 Showln sTemp1 Procedure_Return End // 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. Get ComHasPrivateKey Of hoCert To bTemp1 If (Not bTemp1) Begin Showln "This certificate does not have a private key available." Procedure_Return End Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey If (Not(IsComObjectCreated(hoPrivKey))) Begin Send CreateComObject of hoPrivKey End Get pvComObject of hoPrivKey to vPrivKey Get ComGetPrivateKey Of hoCert vPrivKey To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoCert To sTemp1 Showln sTemp1 Procedure_Return End Get Create (RefClass(cComChilkatDkim)) To hoDkim If (Not(IsComObjectCreated(hoDkim))) Begin Send CreateComObject of hoDkim End // Load the private key into the DKIM object: Get pvComObject of hoPrivKey to vPrivKey Get ComSetDkimPrivateKey Of hoDkim vPrivKey To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoDkim To sTemp1 Showln sTemp1 Procedure_Return End // The private key has been loaded into the DKIM object. See the other DKIM // examples for guidance on how to create a DKIM signature... End_Procedure |
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