(DataFlex) List Microsoft Storage Providers

Gets the Microsoft CNG and legacy CryptoAPI storage providers that exist on the Windows system.

Important: This example requires Chilkat v9.5.0.83 or greater.

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

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoKeyCon
    Variant vJson
    Handle hoJson
    Boolean iSuccess
    String sName
    Integer i
    Integer iNumStorageContainers
    String sTemp1

    // This example requires Chilkat v9.5.0.83 or greater.

    Get Create (RefClass(cComChilkatKeyContainer)) To hoKeyCon
    If (Not(IsComObjectCreated(hoKeyCon))) Begin
        Send CreateComObject of hoKeyCon
    End
    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Set ComEmitCompact Of hoJson To False

    Get pvComObject of hoJson to vJson
    Get ComGetStorageProviders Of hoKeyCon vJson To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoKeyCon To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComEmit Of hoJson To sTemp1
    Showln sTemp1

    // Sample JSON returned by GetStorageProviders

    // {
    //   "cng": [
    //     "Microsoft Software Key Storage Provider",
    //     "Microsoft Passport Key Storage Provider",
    //     "Microsoft Platform Crypto Provider",
    //     "Microsoft Smart Card Key Storage Provider"
    //   ],
    //   "legacy": [
    //     "Microsoft Base Cryptographic Provider v1.0",
    //     "Microsoft Base DSS and Diffie-Hellman Cryptographic Provider",
    //     "Microsoft Base DSS Cryptographic Provider",
    //     "Microsoft Base Smart Card Crypto Provider",
    //     "Microsoft DH SChannel Cryptographic Provider",
    //     "Microsoft Enhanced Cryptographic Provider v1.0",
    //     "Microsoft Enhanced DSS and Diffie-Hellman Cryptographic Provider",
    //     "Microsoft Enhanced RSA and AES Cryptographic Provider",
    //     "Microsoft RSA SChannel Cryptographic Provider",
    //     "Microsoft Strong Cryptographic Provider"
    //   ]
    // }

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // Iterate over the CNG storage containers
    Move 0 To i
    Get ComSizeOfArray Of hoJson "cng" To iNumStorageContainers
    While (i < iNumStorageContainers)
        Set ComI Of hoJson To i
        Get ComStringOf Of hoJson "cng[i]" To sName
        Showln sName
        Move (i + 1) To i
    Loop

    Showln "--"

    // Iterate over the legacy CryptoAPI Cryptographic Storage Providers
    Move 0 To i
    Get ComSizeOfArray Of hoJson "legacy" To iNumStorageContainers
    While (i < iNumStorageContainers)
        Set ComI Of hoJson To i
        Get ComStringOf Of hoJson "legacy[i]" To sName
        Showln sName
        Move (i + 1) To i
    Loop



End_Procedure