Add PFX Bytes as a Decryption Source

See more MIME Examples

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

AddPfxSourceBd registers PFX/P12 bytes held in a BinData as a source of certificates and private keys for later decryption.

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.

Dim success As Long
success = 0

Dim mime As New ChilkatMime
success = mime.LoadMimeFile("qa_data/encrypted.eml")
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

'  Add PFX/P12 bytes (from a BinData) as a source of certificates and private keys for later
'  decryption.  The 1st argument is the BinData and the 2nd is the password (from a secure source).
Dim bdPfx As New ChilkatBinData
success = bdPfx.LoadFile("qa_data/recipient.pfx")
If (success = 0) Then
    Debug.Print bdPfx.LastErrorText
    Exit Sub
End If

Dim pfxPassword As String
pfxPassword = "myPfxPassword"
success = mime.AddPfxSourceBd(bdPfx,pfxPassword)
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

success = mime.Decrypt()
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

Debug.Print "Decrypted."