public void Sign(MimeMessage message, PgpSecretKey key)
{
// digitally sign our message body using our custom GnuPG cryptography context
using (var ctx = new MyGnuPGContext()) {
message.Body = MultipartSigned.Create(ctx, key, DigestAlgorithm.Sha1, message.Body);
}
}
static Stream Decrypt(MimeMessage message)
{
var text = message.TextBody;
using (var memory = new MemoryStream(Encoding.ASCII.GetBytes(text), false)) {
using (var ctx = new MyGnuPGContext()) {
return(ctx.GetDecryptedStream(memory));
}
}
}
public void Encrypt(MimeMessage message)
{
// encrypt our message body using our custom GnuPG cryptography context
using (var ctx = new MyGnuPGContext()) {
// Note: this assumes that each of the recipients has a PGP key associated
// with their email address in the user's public keyring.
//
// If this is not the case, you can use SecureMailboxAddresses instead of
// normal MailboxAddresses which would allow you to specify the fingerprint
// of their PGP keys. You could also choose to use one of the Encrypt()
// overloads that take a list of PgpPublicKeys.
message.Body = MultipartEncrypted.Encrypt(ctx, message.To.Mailboxes, message.Body);
}
}
public void Encrypt (MimeMessage message)
{
// encrypt our message body using our custom GnuPG cryptography context
using (var ctx = new MyGnuPGContext ()) {
// Note: this assumes that each of the recipients has a PGP key associated
// with their email address in the user's public keyring.
//
// If this is not the case, you can use SecureMailboxAddresses instead of
// normal MailboxAddresses which would allow you to specify the fingerprint
// of their PGP keys. You could also choose to use one of the Encrypt()
// overloads that take a list of PgpPublicKeys.
message.Body = MultipartEncrypted.Encrypt (ctx, message.To.Mailboxes, message.Body);
}
}
static Stream Decrypt(MimeMessage message)
{
var text = message.TextBody;
using (var encrypted = new MemoryStream(Encoding.ASCII.GetBytes(text), false)) {
using (var ctx = new MyGnuPGContext()) {
var decrypted = new MemoryStream();
ctx.DecryptTo(encrypted, decrypted);
decrypted.Position = 0;
return(decrypted);
}
}
}
public void Sign(MimeMessage message)
{
// digitally sign our message body using our custom GnuPG cryptography context
using (var ctx = new MyGnuPGContext()) {
// 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.
//
// If this is not the case, you can use a SecureMailboxAddress instead of a
// normal MailboxAddress which would allow you to specify the fingerprint
// of the sender's private PGP key. You could also choose to use one of the
// Create() overloads that take a PgpSecretKey, instead.
var sender = message.From.Mailboxes.FirstOrDefault();
message.Body = MultipartSigned.Create(ctx, sender, DigestAlgorithm.Sha1, message.Body);
}
}
public void Sign (MimeMessage message)
{
// digitally sign our message body using our custom GnuPG cryptography context
using (var ctx = new MyGnuPGContext ()) {
// 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.
//
// If this is not the case, you can use a SecureMailboxAddress instead of a
// normal MailboxAddress which would allow you to specify the fingerprint
// of the sender's private PGP key. You could also choose to use one of the
// Create() overloads that take a PgpSecretKey, instead.
var sender = message.From.Mailboxes.FirstOrDefault ();
message.Body = MultipartSigned.Create (ctx, sender, DigestAlgorithm.Sha1, message.Body);
}
}
public void Sign (MimeMessage message, PgpSecretKey key)
{
// digitally sign our message body using our custom GnuPG cryptography context
using (var ctx = new MyGnuPGContext ()) {
message.Body = MultipartSigned.Create (ctx, key, DigestAlgorithm.Sha1, message.Body);
}
}
static Stream Decrypt (MimeMessage message)
{
var text = message.TextBody;
using (var memory = new MemoryStream (Encoding.ASCII.GetBytes (text), false)) {
using (var ctx = new MyGnuPGContext ()) {
return ctx.GetDecryptedStream (memory);
}
}
}
