VB.NET

IMAP Login Secure

Demonstrates how to use the LoginSecure method introduced in Chilkat v9.5.0.71. VB.NET

Dim success As Boolean = False

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

Dim imap As New Chilkat.Imap

' Connect to an IMAP server..
imap.Ssl = True
imap.Port = 993
success = imap.Connect("imap.mail.me.com")
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' Imagine we've previously saved our encrypted login and password within a JSON config file
' that contains this:

' {
'   "imap_login": "fLkxsfnVaIWLiL/R32jo6g==",
'   "imap_password": "/NbaFBoCftBLFf8WBU9Xtw=="
' }

Dim json As New Chilkat.JsonObject
json.LoadFile("qa_data/passwords/imap.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("imap_login"),ssLogin)
crypt.DecryptSecureENC(json.StringOf("imap_password"),ssPassword)

' Pass the credentials to the LoginSecure method:
success = imap.LoginSecure(ssLogin,ssPassword)
If (success <> True) Then
    Debug.WriteLine(imap.LastErrorText)
    Exit Sub
End If


' ...

imap.Disconnect()