public void MultipartSign(MimeMessage message)
{
// digitally sign our message body using our custom S/MIME cryptography context
using (var ctx = new MySecureMimeContext()) {
// Note: this assumes that the Sender address has an S/MIME signing certificate
// and private key with an X.509 Subject Email identifier that matches the
// sender's email address.
var sender = message.From.Mailboxes.FirstOrDefault();
message.Body = MultipartSigned.Create(ctx, sender, DigestAlgorithm.Sha1, message.Body);
}
}
public void MultipartSign(MimeMessage message, X509Certificate2 certificate)
{
// digitally sign our message body using our custom S/MIME cryptography context
using (var ctx = new MySecureMimeContext()) {
var signer = new CmsSigner(certificate)
{
DigestAlgorithm = DigestAlgorithm.Sha1
};
message.Body = MultipartSigned.Create(ctx, signer, message.Body);
}
}
public void MultipartSign (MimeMessage message)
{
// digitally sign our message body using our custom S/MIME cryptography context
using (var ctx = new MySecureMimeContext ()) {
// Note: this assumes that the Sender address has an S/MIME signing certificate
// and private key with an X.509 Subject Email identifier that matches the
// sender's email address.
var sender = message.From.Mailboxes.FirstOrDefault ();
message.Body = MultipartSigned.Create (ctx, sender, DigestAlgorithm.Sha1, message.Body);
}
}
public void Encrypt(MimeMessage message)
{
// encrypt our message body using our custom S/MIME cryptography context
using (var ctx = new MySecureMimeContext()) {
// Note: this assumes that each of the recipients has an S/MIME certificate
// with an X.509 Subject Email identifier that matches their email address.
//
// If this is not the case, you can use SecureMailboxAddresses instead of
// normal MailboxAddresses which would allow you to specify the fingerprint
// of their certificates. You could also choose to use one of the Encrypt()
// overloads that take a list of CmsRecipients, instead.
message.Body = ApplicationPkcs7Mime.Encrypt(ctx, message.To.Mailboxes, message.Body);
}
}
public void Encrypt (MimeMessage message)
{
// encrypt our message body using our custom S/MIME cryptography context
using (var ctx = new MySecureMimeContext ()) {
// Note: this assumes that each of the recipients has an S/MIME certificate
// with an X.509 Subject Email identifier that matches their email address.
//
// If this is not the case, you can use SecureMailboxAddresses instead of
// normal MailboxAddresses which would allow you to specify the fingerprint
// of their certificates. You could also choose to use one of the Encrypt()
// overloads that take a list of CmsRecipients, instead.
message.Body = ApplicationPkcs7Mime.Encrypt (ctx, message.To.Mailboxes, message.Body);
}
}
public void MultipartSign (MimeMessage message, X509Certificate2 certificate)
{
// digitally sign our message body using our custom S/MIME cryptography context
using (var ctx = new MySecureMimeContext ()) {
var signer = new CmsSigner (certificate) {
DigestAlgorithm = DigestAlgorithm.Sha1
};
message.Body = MultipartSigned.Create (ctx, signer, message.Body);
}
}
