(DataFlex) Duplicate openssl pkey -in private.pem -pubout -out pubkey.pem

How to output the public part of a private key: Demonstrates how to duplicate this OpenSSL command:

openssl pkey -in private.pem -pubout -out pubkey.pem

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

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoPkey
    Boolean iSuccess
    Variant vPubKey
    Handle hoPubKey
    String sTemp1
    Boolean bTemp1

    Get Create (RefClass(cComChilkatPrivateKey)) To hoPkey
    If (Not(IsComObjectCreated(hoPkey))) Begin
        Send CreateComObject of hoPkey
    End

    // Load the private key from an PEM file:
    Get ComLoadPemFile Of hoPkey "private.pem" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPkey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComGetPublicKey Of hoPkey To vPubKey
    If (IsComObject(vPubKey)) Begin
        Get Create (RefClass(cComChilkatPublicKey)) To hoPubKey
        Set pvComObject Of hoPubKey To vPubKey
    End
    Get ComLastMethodSuccess Of hoPkey To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoPkey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComSavePemFile Of hoPubKey False "pubKey.pem" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPubKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPubKey
        Procedure_Return
    End

    Showln "Success."

    Send Destroy of hoPubKey


End_Procedure