(DataFlex) PKCS11 Export Public Key from HSM

See more PKCS11 Examples

Demonstrates how to export a public key from a smartcard or token.

Note: This example requires Chilkat v9.5.0.96 or later.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoPkcs11
    String sPin
    Integer iUserType
    Boolean iSuccess
    Variant vJsonTemplate
    Handle hoJsonTemplate
    UInteger iPubKeyHandle
    Variant vPubKey
    Handle hoPubKey
    String sTemp1

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

    // Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

    Get Create (RefClass(cComChilkatPkcs11)) To hoPkcs11
    If (Not(IsComObjectCreated(hoPkcs11))) Begin
        Send CreateComObject of hoPkcs11
    End

    // Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
    // (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
    Set ComSharedLibPath Of hoPkcs11 To "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"

    // Establish a logged-on session. (We can typically skip the login by passing an empty PIN if only working with public keys)
    // Use your actual PIN here, or an empty string to skip login.
    Move "0000" To sPin
    Move 1 To iUserType
    Get ComQuickSession Of hoPkcs11 iUserType sPin To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPkcs11 To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Get the handle of the public key we wish to export.
    // You can find public keys in many different ways.
    // This example will search for a public key by label.

    // Provide a template to find a PKCS11 object.
    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonTemplate
    If (Not(IsComObjectCreated(hoJsonTemplate))) Begin
        Send CreateComObject of hoJsonTemplate
    End

    // Find the public key with the label "Belgium eHealth".
    Get ComUpdateString Of hoJsonTemplate "class" "public_key" To iSuccess
    Get ComUpdateString Of hoJsonTemplate "label" "Belgium eHealth" To iSuccess

    Get pvComObject of hoJsonTemplate to vJsonTemplate
    Get ComFindObject Of hoPkcs11 vJsonTemplate To iPubKeyHandle
    If (iPubKeyHandle = 0) Begin
        Get ComLastErrorText Of hoPkcs11 To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Export to a Chilkat public key object.
    Get Create (RefClass(cComChilkatPublicKey)) To hoPubKey
    If (Not(IsComObjectCreated(hoPubKey))) Begin
        Send CreateComObject of hoPubKey
    End
    Get pvComObject of hoPubKey to vPubKey
    Get ComExportPublicKey Of hoPkcs11 iPubKeyHandle vPubKey To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPkcs11 To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Get the public key as PKCS8 PEM.
    Get ComGetPem Of hoPubKey False To sTemp1
    Showln sTemp1

    Get ComLogout Of hoPkcs11 To iSuccess
    Get ComCloseSession Of hoPkcs11 To iSuccess


End_Procedure