dodo_bushido: Anatomi email

Assalammualaikum... PEMIRSA!!!
Masih di mata kuliah Keamanan Informasi... Huhuhu,
pada kesempatan kali ini saya akan mengemukakan mengenai anatomi E-Mail. Berikut ini adalah isi dari email yang saya coba:

DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws;
  s=s1024; d=yahoo.com;
  h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type;
  b=Q0t0TBB/v+kHwOVJICQmjZMiSVqkbjbNcY7c7PWmu5O2sHyyBcXE+6BU7aoB4C6bk1Zx7ZBy5sfX99ZX7kRPWnzqkLdZ+aajKW8LaNXCTOOt4URsXkAW2XXl384x17/U6izC69qxonvyNhKUKNtB0uv+vjZyQGAsyT0m0L4vx2Q=;
Message-ID: <251177.23508.qm@web57901.mail.re3.yahoo.com>
Date: Wed, 17 Mar 2010 19:07:05 -0700 (PDT)
From: Alfadho Khasroh 
Subject: Trs: Trs: materi kuliah
To: if17137@students.if.itb.ac.id
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="0-1128475272-1268878025=:23508"
--0-1128475272-1268878025=:23508
Content-Type: multipart/alternative; boundary="0-1920168540-1268878025=:23508"

--0-1920168540-1268878025=:23508
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

----- Pesan Diteruskan ----=0A=0ADari: Alfadho Khasroh 
com>=0AKepada: alfia nurul =0ATerkirim: Jum,=
 12 Maret, 2010 09:59:45=0AJudul: Trs: materi kuliah=0A=0A=0ABahan MANPRO b=
ab 7 (Communication Management dan Requirement Management)=0A=0A=0A=0A-----=
 Pesan Diteruskan ----=0ADari: Mary Handoko =0AKepada=
: dodo_bushido@yahoo.com=0ATerkirim: Kam, 11 Maret, 2010 12:21:55=0AJudul: =
materi kuliah=0A=0A=0A________________________________=0A Nikmati chatting =
lebih sering di blog dan situs web =0AGunakan Wizard Pembuat Pingbox Online=
=0A=0A=0A      Lebih Bersih, Lebih Baik, Lebih Cepat - Rasakan Yahoo! Mail =
baru yang Lebih Cepat hari ini! http://id.mail.yahoo.com
--0-1920168540-1268878025=:23508
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable

ad>
t-size:12pt">
f; font-size: 12pt;">----- Pesan Diteruskan ----

ly: times new roman,new york,times,serif; font-size: 12pt;">
ahoma" size=3D"2">Dari: Al=
fadho Khasroh <dodo_bushido@yahoo.com>

ht: bold;">Kepada: alfia nurul <if17026@students.if.itb.ac.id=
>
Terkirim: Jum, 12 =
Maret, 2010 09:59:45
Judul:=
 Trs: materi kuliah


roman,new york,times,serif; font-size: 12pt;">Bahan MANPRO bab 7 (Comm=
unication Management dan Requirement Management)

t-family: times
 new roman,new york,times,serif; font-size: 12pt;">

amily: times new roman,new york,times,serif; font-size: 12pt;">
=3D"Tahoma" size=3D"2">----- Pesan Diteruskan ----

t-weight: bold;">Dari: Mary Handoko <mary@informatika.org>=

Kepada: dodo_bushido@y=
ahoo.com
Terkirim: Kam,=
 11 Maret, 2010 12:21:55
Judul:
pan> materi kuliah

=0A
=0A

=0A      <=
hr size=3D"1"> 
ahoo.com/th/messenger/pingbox/mailtagline/*http://id.messenger.yahoo.com/pi=
ngbox/"> Nikmati chatting lebih sering di blog dan situs web 
Gunak=
an Wizard Pembuat Pingbox Online
=0A

=0A      

=3D1> Coba Yahoo! Mail baru yang LEBIH CEPAT. 
oo.com"> Rasakan bedanya sekarang! 
--0-1920168540-1268878025=:23508--
--0-1128475272-1268878025=:23508
Content-Type: application/vnd.ms-powerpoint; name="7.a.CommunicationManag.ppt"
Content-Transfer-Encoding: base64

Content-Disposition: attachment; filename="7.a.CommunicationManag.ppt"
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EAAAGQUAAAEAAAD+////AAAAACcFAAAoBQAAKQUAACoFAAArBQAALAUAAC0FAAAuBQAALwUAADAF
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BAAAKQQAACoEAAD+/////f////3////+////6wMAAP7/////////////////////////////////
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//////////////////7///8CAAAAAwAAAAQAAAAFAAAABgAAAAcAAAAIAAAACQAAAAoAAAALAAAA
DAAAAA0AAAAOAAAADwAAABAAAAARAAAAEgAAABMAAAAUAAAAFQAAABYAAAAXAAAAGAAAABkAAAAa
AAAAGwAAABwAAAAdAAAAHgAAAP7/////////////////////////////////////////////////
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AAcAAADIAAAACAAAANAAAAAJAAAA2AAAAAoAAADgAAAAFwAAAOgAAAALAAAA8AAAABAAAAD4AAAA
EwAAAAABAAAWAAAACAEAAA0AAAAQAQAADAAAAJoGAAACAAAA5AQAAB4AAAAQAAAAT24tc2NyZWVu
IFNob3cAAB4AAAAIAAAAd2luZG93cwADAAAA1hsEAAMAAADsAQAAAwAAADAAAAADAAAABgAAAAMA
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dHMgABgAAAAyIFR5cGVzIG9mIFJlcXVpcmVtZW50cwANAAAAUmVxdWlyZW1lbnRzAAwQAAAIAAAA
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AAAALQBhADEAMwA1AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAA==
--0-1128475272-1268878025=:23508--

Yang saya beri tanda warna ijo adalah header e-mail, warna biru adalah body, warna orange adalah attachment, dan merah adalah separator. Pada attachment juga dapat dilihat encoding untuk data yang dilampirkan. Untuk file gambar.png, karena data biner, maka harus diubah dulu menjadi data ASCII biasa menggunakan encoding base64. Untuk file index.html karena isinya ASCII biasa, dapat langsung dikirimkan dalam bentuk aslinya. Untuk aplikasi, dapat dilihat pada contoh diatas hasil encodingnya sangat panjang, hehe... =D
Cukup sederhana bukan? pada awal pemberian tugas ini saya kira pak Budi menugaskan
untuk membuat mail engine yang kemudian di uji dengan saling mengirim email.hehe...
ternyata salah sangka ^^

dodo_bushido

Rabu, 17 Maret 2010

Anatomi email

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