Use an XmlCertVault for S/MIME Operations

See more MIME Examples

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

UseCertVault sets an XmlCertVault as the single active source of certificates and private keys for S/MIME encryption, decryption, signing, and verification.

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 Boolean
success = False

Dim mime As New Chilkat.Mime
success = mime.LoadMimeFile("qa_data/encrypted.eml")
If (success = False) Then
    System.DebugLog(mime.LastErrorText)
    Return
End If

//  Use an XmlCertVault as the source of certificates and private keys for S/MIME operations.  The
//  only argument is the vault.  Only one vault is active at a time.
Dim vault As New Chilkat.XmlCertVault
Dim pfxPassword As String
pfxPassword = "myPfxPassword"
success = vault.AddPfxFile("qa_data/recipient.pfx",pfxPassword)
If (success = False) Then
    System.DebugLog(vault.LastErrorText)
    Return
End If

success = mime.UseCertVault(vault)
If (success = False) Then
    System.DebugLog(mime.LastErrorText)
    Return
End If

//  Decryption (and signing/verification) now draws credentials from the vault.
success = mime.Decrypt()
If (success = False) Then
    System.DebugLog(mime.LastErrorText)
    Return
End If

System.DebugLog("Decrypted using the certificate vault.")