(Excel) Decrypt2

Demonstrates how to decrypt MIME using a certificate and private key where the certificate and its corresponding private key are stored in separate files -- a .cer for the certificate, and a .pem for the private key.

Download Excel Class Modules Chilkat Excel Class Modules

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

Dim mime As Chilkat.Mime
Set mime = Chilkat.NewMime

' Load the certificate from a .cer file.
Dim cert As Chilkat.Cert
Set cert = Chilkat.NewCert

success = cert.LoadFromFile("aaworkarea/myCert.cer")
If (success = False) Then
    Debug.Print cert.LastErrorText
    Exit Sub
End If

' Load the private key from an encrypted PEM file.
' (A private key can be loaded from other file formats also..)
Dim privKey As Chilkat.PrivateKey
Set privKey = Chilkat.NewPrivateKey
success = privKey.LoadEncryptedPemFile("aaworkarea/myPrivateKey.pem","myPassword")
If (success = False) Then
    Debug.Print privKey.LastErrorText
    Exit Sub
End If

success = mime.LoadMimeFile("aaworkarea/encryptedMime.txt")
If (success = False) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

' Decrypt using the cert and associated private key
success = mime.Decrypt2(cert,privKey)
If (success = False) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

' Save the S/MIME to a file.
success = mime.SaveMime("aaworkarea/decryptedMime.txt")
If (success = False) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

Debug.Print "success!"