Add a PFX File as a Decryption Source

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Loads a CMS/PKCS #7 encrypted S/MIME message and decrypts it back to the original MIME content.

AddPfxSourceFile registers a PFX/P12 file as a source of certificates and private keys used by subsequent decryption operations.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

integer li_rc
integer li_Success
oleobject loo_Mime
string ls_PfxPassword

li_Success = 0

loo_Mime = create oleobject
li_rc = loo_Mime.ConnectToNewObject("Chilkat.Mime")
if li_rc < 0 then
    destroy loo_Mime
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_Mime.LoadMimeFile("qa_data/encrypted.eml")
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    return
end if

//  Add a PFX/P12 file as a source of certificates and private keys for later decryption.  The 1st
//  argument is the PFX path and the 2nd is its password (from a secure source).  Call once per
//  source file.
ls_PfxPassword = "myPfxPassword"
li_Success = loo_Mime.AddPfxSourceFile("qa_data/recipient.pfx",ls_PfxPassword)
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    return
end if

//  Decrypt using the keys from the added PFX source(s).
li_Success = loo_Mime.Decrypt()
if li_Success = 0 then
    Write-Debug loo_Mime.LastErrorText
    destroy loo_Mime
    return
end if

Write-Debug "Decrypted."


destroy loo_Mime