TUGAS KIPTOGRAFI

 tugas kiptografi

Private Sub CaesarChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CaesarChiperToolStripMenuItem.Click
        Caeser_Chiper.MdiParent = Me
        Caeser_Chiper.Show()
    End Sub

    Private Sub GronsfeldChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GronsfeldChiperToolStripMenuItem.Click
        Grondfeld_Chiper.MdiParent = Me
        Grondfeld_Chiper.Show()
    End Sub

    Private Sub VernamChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles VernamChiperToolStripMenuItem.Click
        Vernam_Chiper.MdiParent = Me
        Vernam_Chiper.Show()
    End Sub

    Private Sub VigenereChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles VigenereChiperToolStripMenuItem.Click
        Vegenere_Chiper.MdiParent = Me
        Vegenere_Chiper.Show()
    End Sub

    Private Sub DesChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DesChiperToolStripMenuItem.Click
        Des_Chiper.MdiParent = Me
        Des_Chiper.Show()
    End Sub

    Private Sub RC4ToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RC4ToolStripMenuItem.Click
        RC4.MdiParent = Me
        RC4.Show()
    End Sub

    Private Sub KeluarToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KeluarToolStripMenuItem.Click
        End
    End Sub

    Private Sub MenuStrip1_ItemClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ToolStripItemClickedEventArgs) Handles MenuStrip1.ItemClicked

    End Sub

    Private Sub KeluarToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles KeluarToolStripMenuItem1.Click
        End
    End Sub
End Class

Public Class Caeser_Chiper

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim jumlah As Double = Len(Plainteks.Text)
        Dim x As String
        Dim xkalimat As String = ""
        Dim i As Double
        Dim bil As Integer
        For i = 1 To jumlah
            x = Mid(Plainteks.Text, i, 1)
            bil = Asc(x) + 3
            x = Chr(bil)
            xkalimat = xkalimat + x
        Next i
        Chiperteks.Text = xkalimat
    End Sub

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

End Class

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