Sekilas tentang Mesran[dot]net

Mesran.Net merupakan salah website yang berguna untuk belajar bahasa pemrograman. Pada mesran.net terdiri beberapa artikel diantaranya artikel mengenai tips tips belajar bahasa pemrograman serta beberapa bahasa pemrograman salah satunya Visual Basic dot Net serta program berorientasi Database sebagai contoh : Program Visual Basic Net Simpan Edit Hapus Record Pada Database Access.
Diwebsite ini kita akan dikenalkankan mengenai tentang bahasa pemrograman mulai dari dasar, dan diajarkan tentang mudahnya mempelajari pemrograman itu. Selain itu masih Banyak lagi yang akan kita dapatkan di website ini.
  Dan mungkin itulah yang bisa saya sampaikan dalam postingan saya kali ini, semoga dengan adanya Mesran[dot]Net anda dan terutama diri saya bisa menguasai belajar tentang bahasa pemrograman.
 Demikian tentang mesan[dot]net muda-mudahan saya bisa menyelesaikan mata kuliah Visual Basic. net dengan nilai yang sangat memuaskan amin,, dan makin mantap buat Mesran.net yang sudah bagi-bagi ilmu,,

Cara Membuat Effect Salju Pada Blog

Disini Saya akan coba postkan 'Bagaimana Cara Membuat Effect Salju DiBlog'anda. Gak susah kok, tinggal ikuti cara berikut ini.

Langkah-Langkahnya:
1. Sebelumnya anda harus login dulu dibog anda.

2. Pilih Tata Letak, Menu Layout

3. Klik Tambah Gadget atau Add a Gadget
4. pilih HTML/JavaScript
5. Lalu copykan kode-kode dibawah ini:
<script src="http://masterendi.googlecode.com/files/salju.js"></script>

6.simpan dan lihat hasilnya diblog mu.

Tugas Kriptografi

SYNTAX

Public Class Form1

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

        End

    End Sub

    Private Sub CaesarChToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CaesarChToolStripMenuItem.Click

        caesar_chiper.Show()

    End Sub

    Private Sub VernamChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles VernamChiperToolStripMenuItem.Click

        vernam_chiper.Show()

    End Sub

    Private Sub VigenereChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles VigenereChiperToolStripMenuItem.Click

        vigenere_chiper.Show()

    End Sub

    Private Sub DesChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AutoKeyChiperToolStripMenuItem.Click

        autokey_chiper.Show()

    End Sub

    Private Sub GronsfeldChiperToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles GronsfeldChiperToolStripMenuItem.Click

        Des_chiper.Show()

    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

End Class

AUTOKEY_CHIPER

 

SYNTAX

Public Class autokey_chiper

    Private Sub autokey_chiper_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        plaintext.Text = ""

        kunci.Text = ""

        chipertext.Text = ""

    End Sub

    Private Function AutokeyEncipher(ByVal strPlaintext As String, ByRef strKey As String) As String

        Dim i As Long

        Dim j As Long

        Dim c1 As Integer

        Dim strPlaintext2 As String

        Dim strKey2 As String

        Dim strCiphertext As String

        Dim strCiphertext2 As String

        Dim diffKeyLen As Integer

        Dim pAlphabet As Integer

        Dim cAlphabet As Integer

        Dim nShift As Integer

        '1. Hilangkan semua karakter yang bukan alfabet dari strPlaintext

        ' dan simpan sebagai strPlaintext2

        strPlaintext2 = ""

        For i = 1 To strPlaintext.Length

            c1 = Asc(Mid(strPlaintext, i, 1))

            If (c1 >= 65 And c1 <= 90) Then

                strPlaintext2 = strPlaintext2 & Chr(c1)

            End If

        Next i

        '2. Hilangkan semua karakter yang bukan alfabet dari strKey

        ' dan simpan sebagai strKey2

        strKey2 = ""

        For i = 1 To strKey.Length

            c1 = Asc(Mid(strKey, i, 1))

            If (c1 >= 65 And c1 <= 90) Then

                strKey2 = strKey2 & Chr(c1)

            End If

        Next i

        '3. Susun kunci baru strKey2 berdasarkan kunci awal strKey kemudian

        ' ditambah plaintext

        'perbedaan antara panjang plaintext dan kunci

        diffKeyLen = strPlaintext2.Length - strKey2.Length

        For i = 1 To diffKeyLen

            'c1 = Asc(Mid(strPlaintext2, i, 1))

            strKey2 = strKey2 & Mid(strPlaintext2, i, 1)

        Next i

        '4. Geser masing-masing huruf pada plaintext

        ' dengan huruf yang terkait pada key

        strCiphertext = ""

        For i = 1 To strPlaintext2.Length

            c1 = Asc(Mid$(strPlaintext2, i, 1))

            nShift = Asc(Mid$(strKey2, i, 1)) - 65

            If ((c1 >= 65) And (c1 <= 90)) Then

                pAlphabet = c1 - 65 ' get the alphabet sequence

                cAlphabet = (pAlphabet + nShift) Mod 26 ' shifted alphabet

                c1 = cAlphabet + 65 ' get character in 65 ... 90

            End If

            strCiphertext = strCiphertext & Chr(c1)

        Next i

        '5. Susun strCiphertext sesuai dengan urutan strPlaintext

        strCiphertext2 = ""

        strKey = ""

        j = 1

        For i = 1 To strPlaintext.Length

            c1 = Asc(Mid$(strPlaintext, i, 1))

            If ((c1 >= 65) And (c1 <= 90)) Then

                strCiphertext2 = strCiphertext2 & Mid(strCiphertext, j, 1)

                strKey = strKey & Mid(strKey2, j, 1)

                j = j + 1

            Else

                strCiphertext2 = strCiphertext2 & Chr(c1)

                strKey = strKey & " "

            End If

        Next i

        Return strCiphertext2

    End Function

    Private Sub btnkeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnkeluar.Click

        Me.Close()

    End Sub

    Private Sub btnhapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapus.Click

        plaintext.Text = ""

        kunci.Text = ""

        chipertext.Text = ""

    End Sub

    Private Sub btnenkripsi_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Encipher.Click

        chipertext.Text = AutokeyEncipher(plaintext.Text, kunci.Text)

    End Sub

    Private Sub plaintext_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles plaintext.TextChanged

    End Sub

End Class

CAESAR_CHIPER 

SYNTAX

Public Class caesar_chiper

    Private Sub caesar_chiper_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        plaintext.Text = ""

        chipertext.Text = ""

    End Sub

    Private Sub btnenkripsi_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnenkripsi.Click

        Dim jumlah As Double = Len(plaintext.Text)

        Dim x As String

        Dim xkalimat As String = ""

        Dim i As Double

        Dim bil As Integer

        For i = 1 To jumlah

            x = Mid(plaintext.Text, i, 1)

            bil = Asc(x) + 3

            x = Chr(bil)

            xkalimat = xkalimat + x

        Next i

        chipertext.Text = xkalimat

    End Sub

    Private Sub btnhapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapus.Click

        plaintext.Text = ""

        chipertext.Text = ""

    End Sub

    Private Sub btnkeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)

        End

    End Sub

    Private Sub btnkeluar_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnkeluar.Click

        Me.Close()

    End Sub

End Class

DES_CHIPER

 

SYNTAX

Public Class Des_chiper

    Private Sub Des_chiper_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        plain.Text = ""

        chip.Text = ""

    End Sub

    Private Sub deskripsi_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles deskripsi.Click

        Dim x As String = ""

        Dim xkalimat As String = ""

        For i = 1 To Len(chip.Text)

            x = Mid(chip.Text, i, i)

            x = Chr(Asc(x) - 3)

            xkalimat = xkalimat + x

        Next

        plain.Text = xkalimat

    End Sub

    Private Sub hapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles hapus.Click

        plain.Text = ""

        chip.Text = ""

    End Sub

    Private Sub keluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles keluar.Click

        Me.Close()

    End Sub

End Class

VERNAM_CHIPER

 

SYNTAX

Public Class vernam_chiper

    Private Sub vernam_chiper_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        plaintext.Text = ""

        kunci.Text = ""

        chipertext.Text = ""

    End Sub

    Private Sub btnenkripsi_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnenkripsi.Click

        Dim j As Integer

        Dim jum As Integer

        Dim sKey As String

        Dim nKata As Integer

        Dim nKunci As Integer

        Dim sKata As String

        Dim sPlain As String = ""

        Dim nEnc As Integer

        j = 0

        sKata = plaintext.Text

        jum = Len(sKata)

        sKey = kunci.Text

        For i = 1 To jum

            If j = Len(sKey) Then

                j = 1

            Else

                j = j + 1

            End If

            nKata = Asc(Mid(sKata, i, 1)) - 65

            nKunci = Asc(Mid(sKey, j, 1)) - 65

            nEnc = ((nKata + nKunci) Mod 26)

            sPlain = sPlain & Chr((nEnc) + 65)

        Next i

        chipertext.Text = sPlain

    End Sub

    Private Sub plaintext_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles plaintext.KeyPress

        e.KeyChar = UCase(e.KeyChar)

        Dim tombol As Integer = Asc(e.KeyChar)

        If Not (((tombol >= 65) And (tombol <= 90)) Or (tombol = 8)) Then

            e.Handled = True

        End If

    End Sub

    Private Sub kunci_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles kunci.KeyPress

        e.KeyChar = UCase(e.KeyChar)

        Dim tombol As Integer = Asc(e.KeyChar)

        If Not (((tombol >= 65) And (tombol <= 90)) Or (tombol = 8)) Then

            e.Handled = True

        End If

    End Sub

    Private Sub btnhapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapus.Click

        plaintext.Text = ""

        kunci.Text = ""

        chipertext.Text = ""

    End Sub

    Private Sub btnkeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnkeluar.Click

        Me.Close()

    End Sub

    Private Sub kunci_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles kunci.TextChanged

    End Sub

End Class

 

VIGNERE_CHIPER

 

SYNTAX

Public Class vigenere_chiper

    Private Sub btnenkripsi_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnenkripsi.Click

        chipertext.Text = Enkripsi(plaintext.Text, kunci.Text)

    End Sub

    Function Enkripsi(ByVal Teks As String, ByVal Kunci As String) As String

        Dim j As Integer

        Dim jum As Integer

        Dim sKey As String

        Dim nKata As Integer

        Dim nKunci As Integer

        Dim sKata As String

        Dim sPlain As String

        Dim nEnc As Integer

        j = 0

        jum = Len(Teks)

        sPlain = ""

        sKey = Kunci

        sKata = Teks

        For i = 1 To jum

            If j = Len(sKey) Then

                j = 1

            Else

                j = j + 1

            End If

            nKata = Asc(Mid(sKata, i, 1))

            nKunci = Asc(Mid(sKey, j, 1))

            nEnc = ((nKata + nKunci) Mod 256)

            sPlain = sPlain & Chr((nEnc))

        Next i

        Enkripsi = sPlain

    End Function

    Private Sub btnhapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnhapus.Click

        plaintext.Text = ""

        kunci.Text = ""

        chipertext.Text = ""

    End Sub

    Private Sub btnkeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnkeluar.Click

        Me.Close()

    End Sub

    Private Sub vigenere_chiper_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

End Class