by Mark Delcambre (1 Submission)
Category: Miscellaneous
Compatability: VB 6.0
Difficulty: Unknown Difficulty
Originally Published: Wed 4th April 2001
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
This is a very basic encryption program that converts the message into alternating decimal and hex.
VBcoders
'This is a very simple encryption program. It switches between
'decimal and hex conversion for each character.
Private Sub cmdDecrypt_Click()
Dim sIn As String
Dim out As String
Dim lx As Long
Dim num As Long
Dim MyArray() As String
On Error GoTo unknown
out = ""
sIn = Trim(txtMessage.Text)
txtMessage.Text = ""
MyArray = Split(sIn, Chr(32)) 'chr(32) is a space or " "
For lx = 0 To UBound(MyArray())
If lx Mod 2 = 0 Then
'if its an even number then read in ascii
out = out & Chr(MyArray(lx))
Else
'if odd, read in hex
out = out & Chr(CLng("&h" & MyArray(lx)))
End If
Next
If Len(out) = 0 Then
MsgBox "Put numbers or something"
End If
txtMessage.Text = out
Exit Sub
unknown:
MsgBox "Unknown encryption!", vbCritical, "Error"
End Sub
Private Sub cmdEncrypt_Click()
Dim Original As String
Dim out As String
Dim lx As Long
Dim char As String
out = ""
Original = txtMessage.Text
txtMessage.Text = ""
For lx = 1 To Len(Original)
If lx Mod 2 = 0 Then
'if even, write in hex
char = Mid(Original, lx, 1)
out = out & Hex(Asc(char)) & " "
Else
'if odd, write in dec
char = Mid(Original, lx, 1)
out = out & Asc(char) & " "
End If
Next
txtMessage.Text = out
End Sub
Private Sub Form_Load()
txtMessage.Text = ""
txtMessage.SetFocus
End Sub
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