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INTERNET SECURITY AND ELECTRONIC PAYMENT
SERVICES
Disusun Oleh Asri Mardiana Putra
4 TS
1
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Internet Security2
Firewalls
•Intranets
•Extranets
Secure Transmission
•SSL (Secure Socket Layer)
•Digital Cer tificates
•Digital Signatures
Electronic Payments
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Masalah Keamanan Jaringan Komputer
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Network transmisi dapat disadap Tidak ada bukti pengirim Integritas data Non-penolakan
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Firewalls4
Mengotorisasi akses. Penyaring / menolak pengguna berdasarkan hak akses di server
Dua tipe umum : Packet Level firewalls Application Level Firewalls
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Firewalls5
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Firewalls6
LAN with individual internet access
Internet
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Firewalls7
LAN With Internet access through a firewall
Internet
firewall
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Secure Transmission8
Who can read my E-Mail?
LAN
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Secure Transmission9
Secure Transmission• PGP (Pretty Good Privacy)
Message Integrity
• SSL Menyediakan data otentikasi, integritas pesan, dan
otentikasi klien opsional.
• Digital Certificate
Authentication• Digital Signature
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Secure Transmission SSL10
Mengenkripsi dan kemudian men-decrypts setiap paket informasi yang ditransmisikan.
Penting untuk sensitif data perusahaan atau transaksi keuangan.
Tidak mengotentikasi penerima data dienkripsi.
Sedang dilaksanakan di Netscape navigator Internet Explorer
Menggunakan key kriptografi
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Secure Transmission Digital Certificates
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contains : your name, a serial number, expiration dates, salinan sertifikat pemegang kunci publik
(digunakan untuk mendekripsi pesan dan tanda tangan digital)
tanda tangan digital-sertifikat yang berwenang(a digital Passport)
Morley E (October 12, 1999) digital certificate http://whatis.com/
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Secure Transmission Digital Certificates
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Dapat disimpan dalam dikonfirmasi pendaftar sehingga pengguna dapat melihat pengguna lain public key
Morley E (October 12, 1999) digital certificate http://whatis.com/
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Secure Transmission
Without a Digital Certificate
?
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Secure Transmission With a Digital Certificate
!
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Digital Signature15
authenticate identitas pengirim penerima dapat memeriksa bahwa pesan
atau dokumen yang dikirim tidak berubah dapat secara otomatis waktu-cap dapat digunakan dengan normal dienkripsi
atau pesan dapat juga digunakan bersama sertifikat
digital
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Secure Transmission (summary)
16 Security Technology
What it does Efektivitas dan Keterbatasan
Firewall Mengotorisasi akses. Penyaring / menolak pengguna berdasarkan hak akses di server
Mengotorisasi akses, tetapi tidak dapat mengotentikasi identitas pengguna. Berbasis password, jadi terbuka untuk banyak masalah terkait.
Digital Certificate
Autentikasi identitas pengguna
Mengotorisasi akses, tetapi tidak dapat mengotentikasi identitas pengguna. Berbasis password, jadi terbuka untuk banyak masalah terkait....
Encryption / SSL
Melindungi kerahasiaan data
Hanya mengenkripsi data. Tidak mengotentikasi. Enkripsi dikompromikan dengan menggunakan password atau sertifikat.
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Electronic Signature Definition17
DEFINITION OF ELECTRONIC SIGNATURE: Sec. 4(4). Electronic signature.-- Istilah "tanda tangan
elektronik''berarti suara elektronik, simbol, atau proses, yang melekat pada atau secara logis dihubungkan dengan (kontrak atau lainnya) merekam dan dilaksanakan atau diadopsi oleh orang dengan maksud untuk menandatangani catatan.
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Electronic and Digital Signatures
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Dari sudut pandang hukum, tangan menulis salah satu nama di atas kertas telah menjadi sarana prinsip tanda tangan selama berabad-abad.
In today's electronic world the legal concept of a signature could include:
Dalam dunia elektronik saat ini konsep hukum tanda tangan dapat mencakup : Digitised images of paper signatures. Typed notations. Letterheads or e-mail origination headers.
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Electronic Payments19
Credit cards
SET (Secure Electronic Transactions)
Payment Services, Merchant Gateways
Micropayments (DigiCash, e-Cash, NetPay)
Mondex (SmartCards)
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Electronic Payments:How credit cards work
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Visa Net
Acquirer
Issuer
Merchant
Duncan Unwin, QSI Payments Inc., 2000Duncan Unwin, QSI Payments Inc., 2000
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Electronic Payments:SET: Visa, Mastercard
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A specification which use public-key and private-key
cryptography authenticate cardholders and merchants
using digital certification memberikan kerahasiaan data
pembayaran merchant does not see the credit card
number
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Electronic Payments:Payment Services, Merchant Gateways
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3rd Party Service Camtech, Surelink, QSI
Bank Service CBA, ANZ, NAB, Westpac, St George
Duncan Unwin, QSI Payments Inc., 2000Duncan Unwin, QSI Payments Inc., 2000
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Electronic Payments:Micropayments:
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Small electronic cash payment systems DigiCash, e-Cash, NetPay
See W3C for the first public working draft of the "Common Markup for Web Micropayment Systems”, at URL http://www.w3.org/TR/WD-Micropayment-Markup
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Electronic Cash systems24
Menyediakan elektronik langsung setara tunai Clickshare Mondex Bpay
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Electronic Payments:Mondex (Smart Cards) 1
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Members - licensed to issue Mondex cards to
cardholders and merchants. Merchants -
Pengecer, pelayanan perusahaan dan bisnis lain yang masuk ke dalam perjanjian dengan Anggota yang memungkinkan mereka untuk menerima uang tunai elektronik Mondex sebagai pembayaran untuk barang dan jasa.
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Electronic Payments:Mondex (Smart Cards) 1
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Cardholders - provided with a Mondex Card by a Member
which enables them to pay for goods and services from Merchants and transfer money to/from other Cardholders.
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Electronic Payments:Mondex (Smart Cards)
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Home Banking - download value from your bank account to your
card. Buying on the Internet -
bernilai rendah membeli barang dan jasa di Internet yang biasanya tidak dikenakan biaya.
Privacy - tidak ada catatan diadakan transaksi, privasi biasanya hanya diberikan dengan fisik
uang tunai. real-time verification of funds.
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Clickshare28
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Bpay29
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Terima Kasih Atas Perhatiannya….
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