B4X

Find Certificate for Email Encryption

Demonstrates finding the recipient's certificate in the Windows certificate store and using it to send encrypted email. B4X

Dim success As Boolean = False

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

Dim mailman As ChilkatMailMan
mailman.Initialize("mailman")

'  Set the SMTP server.
mailman.SmtpHost = "smtp.example.com"

'  Create a new email object
Dim email As ChilkatEmail
email.Initialize

email.Subject = "This email is encrypted"
email.Body = "This is a digitally encrypted mail"
email.From = "Joe <joe@example.com>"
'  Emails are encrypted using the recipient's certificate.
Dim recipientEmailAddr As String = "jane@example2.com"
email.AddTo("Jane", recipientEmailAddr)

'  Indicate that the email is to be sent encrypted.
email.SendEncrypted = True

'  This example demonstrates finding the email encryption certificate
'  on a Windows system where the certificate is stored in the Windows 
'  certificate store.

Dim cert As ChilkatCert
cert.Initialize("cert")
'  The recipient's certificate is used to encrypt.
'  (Because the recipient is the only one in possession of the private key to decrypt.)
success = cert.LoadByEmailAddress(recipientEmailAddr)
If success <> True Then
    Log(cert.LastErrorText)
    Return
End If


'  Specify the certificate to be used for encryption.
success = email.SetEncryptCert(cert)

success = mailman.SendEmail(email)
If success <> True Then
    Log(mailman.LastErrorText)
Else
    Log("Encrypted Mail Sent!")
End If