Visual Basic 6.0

POP3 Login Secure

Demonstrates how to set the POP3 password using a secure string.

This example requires Chilkat v9.5.0.71 or greater.

Visual Basic 6.0

Dim success As Long
success = 0

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

Dim mailman As New ChilkatMailMan

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

' {
'   "pop3_login": "D7lnlWY291LKMeChlvQq7N/Tg7ieuSB15a+9Ekyd0R4=",
'   "pop3_password": "5neIq9Jmn0E3p71N6Yc8TA=="
' }

Dim json As New ChilkatJsonObject
success = json.LoadFile("qa_data/passwords/pop3.json")

Dim crypt As New ChilkatCrypt2

' 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 ChilkatSecureString
Dim ssPassword As New ChilkatSecureString

' Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
' a randomly generated session key.)
success = crypt.DecryptSecureENC(json.StringOf("pop3_login"),ssLogin)
success = crypt.DecryptSecureENC(json.StringOf("pop3_password"),ssPassword)

' Set the POP3 domain, login, and password
mailman.MailHost = "pop.gmail.com"
mailman.PopSsl = 1
mailman.MailPort = 995

mailman.PopUsername = ssLogin.Access()
' Set the PopPassword property via the SetPassword method using the secure string.
success = mailman.SetPassword("pop3",ssPassword)

' Connect and authenticate..
success = mailman.Pop3Connect()
If (success <> 1) Then
    Debug.Print mailman.LastErrorText
    Exit Sub
End If

success = mailman.Pop3Authenticate()
If (success <> 1) Then
    Debug.Print mailman.LastErrorText
    Exit Sub
End If

Debug.Print "POP3 login successful."

Dim numMessages As Long
numMessages = mailman.GetMailboxCount()
If (numMessages < 0) Then
    Debug.Print mailman.LastErrorText
    Exit Sub
End If

Debug.Print "Num messages in Inbox = " & numMessages

success = mailman.Pop3EndSession()