PROGRAM VB KRIPTOGRAFI DEKRIPSI

Public Class Form2

    Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        CT.Text = " "
        PT.Text = " "
    End Sub

    Private Sub BTNDEKRIPSI_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BTNDEKRIPSI.Click
        Dim jumlah As Double = Len(CT.Text)
        Dim x As String
        Dim xkalimat As String = " "
        Dim i As Double
        Dim bil As Integer
        For i = 1 To jumlah
            x = Mid(CT.Text, i, 1)
            bil = Asc(x) - 3
            x = Chr(bil)
            xkalimat = xkalimat + x
        Next i
        PT.Text = xkalimat
    End Sub
End Class