(VBScript) Duplicate OpensSSL to Sign File and Output Binary DER

This example duplicates the following:

openssl smime -sign -in INPUT.xml -signer SIGN.PEM -passin pass:MYPASS -outform der -binary -nodetach -out SIGNED.P7M

Note: Although "smime" is the OpenSSL command, it's not actually producing S/MIME. The arguments "-outform der -binary" indicates that the output is binary DER (i.e. the PKCS7 binary signature). The input can be any type of file: XML, PDF, JPG, ... *anything*...

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

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = CreateObject("Chilkat.Crypt2")

' Load the PEM containing cert + private key.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Pem")
set pem = CreateObject("Chilkat.Pem")
success = pem.LoadPemFile("qa_data/pem/myPem.pem","password")
If (success <> 1) Then
    outFile.WriteLine(pem.LastErrorText)
    WScript.Quit
End If

' privkey is a Chilkat.PrivateKey
Set privkey = pem.GetPrivateKey(0)
If (pem.LastMethodSuccess <> 1) Then
    outFile.WriteLine(pem.LastErrorText)
    WScript.Quit
End If

' cert is a Chilkat.Cert
Set cert = pem.GetCert(0)
If (pem.LastMethodSuccess <> 1) Then

    outFile.WriteLine(pem.LastErrorText)
    WScript.Quit
End If

success = crypt.SetSigningCert2(cert,privkey)
If (success <> 1) Then

    outFile.WriteLine(crypt.LastErrorText)
    WScript.Quit
End If

' Alternatively, we could use a .pfx/.p12 file.
' (Chilkat also supports other formats/sources for cert/private keys...)
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set certFromP12 = CreateObject("Chilkat.Cert")
success = certFromP12.LoadPfxFile("qa_data/p12/myP12.p12","password")
If (success <> 1) Then
    outFile.WriteLine(certFromP12.LastErrorText)
    WScript.Quit
End If

' The certificate, when loaded from a .pfx/.p12, will automatically 
' include the associated private key, assuming it's present in the .p12.
' We don't have to explicitly provide the private key as in the
' lines of code above that use the PEM file.
success = crypt.SetSigningCert(certFromP12)
If (success <> 1) Then
    outFile.WriteLine(crypt.LastErrorText)
    WScript.Quit
End If

' Create the opaque signature (PKCS7 binary DER that contains both the signature and original file data).
success = crypt.CreateP7M("qa_data/infile.anything","qa_output/outfile.p7m")
If (success <> 1) Then
    outFile.WriteLine(crypt.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Success.")

outFile.Close