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(VB.NET UWP/WinRT) SMTP Login SecureDemonstrates how to set the SMTP password using a secure string. This example requires Chilkat v9.5.0.71 or greater.
' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim mailman As New Chilkat.MailMan Dim success As Boolean ' Imagine we've previously saved our encrypted login and password within a JSON config file ' that contains this: ' { ' "smtp_login": "D7lnlWY291LKMeChlvQq7N/Tg7ieuSB15a+9Ekyd0R4=", ' "smtp_password": "5neIq9Jmn0E3p71N6Yc8TA==" ' } Dim json As New Chilkat.JsonObject json.LoadFile("qa_data/passwords/smtp.json") Dim crypt As New Chilkat.Crypt2 ' These are the encryption settings we previously used to encrypt the credentials within the JSON config file. crypt.CryptAlgorithm = "aes" crypt.CipherMode = "cbc" crypt.KeyLength = 128 crypt.SetEncodedKey("000102030405060708090A0B0C0D0E0F","hex") crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex") crypt.EncodingMode = "base64" Dim ssLogin As New Chilkat.SecureString Dim ssPassword As New Chilkat.SecureString ' Decrypt to the secure string. (the strings will still held in memory encrypted, but are now encrypted using ' a randomly generated session key.) crypt.DecryptSecureENC(json.StringOf("smtp_login"),ssLogin) crypt.DecryptSecureENC(json.StringOf("smtp_password"),ssPassword) ' Set the SMTP domain, login, and password mailman.SmtpHost = "smtp.gmail.com" mailman.SmtpSsl = True mailman.SmtpPort = 465 mailman.SmtpUsername = ssLogin.Access() ' Set the SmtpPassword property via the SetPassword method using the secure string. mailman.SetPassword("smtp",ssPassword) ' Connect and authenticate.. success = Await mailman.SmtpConnectAsync() If (success <> True) Then Debug.WriteLine(mailman.LastErrorText) Exit Sub End If success = Await mailman.SmtpAuthenticateAsync() If (success <> True) Then Debug.WriteLine(mailman.LastErrorText) Exit Sub End If Debug.WriteLine("SMTP login successful.") ' ... Await mailman.CloseSmtpConnectionAsync() |
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