E-Commerce
Introduction to Security and Privacy Technology
(plus some review of last week)
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Security Technologies - E-Commerce - Lecture Slides, Slides of Fundamentals of E-Commerce
E-Commerce is taking over the traditional commerce practices. It is of special concern for the IT students. Following are the key points of these Lecture Slides : Security Technologies, Security, Privacy Technology, Digital Dilemma, Standard Protocol, Web Transfer, Response Interaction, Request Methods, Status Line, Language
Typology: Slides
2012/2013
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E-Commerce
Introduction to Security and Privacy Technology
(plus some review of last week)
Reading Assignment for this week:Appendix E of The Digital Dilemma
HTML •^
The language in which web pages are written
-^
Contains formatting commands
-^
Tells browser what to display & how to display Welcome to Yale - The head of this page is “Welcome to Yale” Great News! - Set “
Great News!
” in boldface
http
www.cs.yale.edu
index.html
Protocol
Host domain name
Local file
What does
mean?
1994
1995
1996
1997
1998
1999 2000 2001
Estimated Market Share of Netscape 100%80% 60% 40% 20%
NOTE: data are from different sources and not exact
Nov 1998:AOL buys Netscape
Perfectly Captures the
Essence
of
Internet Business
- Enormous power of Internet architecture
and ethos (
e.g.
, layering, “stupid network,”
open standards)
- Must bring new technology to market
quickly to build market share
- Internet
is
the distribution channel
- First via FTP, then via HTTP (using Netscape!)– Downloadable version available free and CD
version sold
Browser as “Soul of the Internet” • “New layer” (Note Internet architectural
triumph!)
- Portal business
- Early “electronic marketplace”– Necessity of strategic alliances– “Positive transfers” to customers
- (Temporarily?) Killed R&D efforts in user
- Early “electronic marketplace”– Necessity of strategic alliances– “Positive transfers” to customers
interfaces
Pluses and Minuses of Network Effects
Initial “Metcalf’s Law”- based boom
Initial boom accelerated by bundling,^ complementary products, etc.
Market share = lock inhigh market cap = high switching costs
Network effects strong for “browser” but weak forany particular browser
Internet-ERA Anti-TrustQuestions are Still Open
- Can consumers benefit from full integration
of browser and OS?
- How to prevent “pre-emptive strikes” on
potential competitors in the Windows-monopoly universe?^ – (“post-desktop era” technical Solution?)
- Remember: DoJ case is not about protecting
Netscape!
Security Technologies
•^
Encryption^ – Symmetric Key– Public Key
-^
Signature
-^
PKI
•^
Rights Management
-^
Time stamping
-^
Secure Containers
Newly Relevant
to General Public
-^
Browser activity is
monitorable
-^
One user’s browser may interact with manywebsites
Many ‘unknown’ website operators can collect
a lot of data about the behavior of browsers atspecific IP addresses.
Threat or Opportunity
Internet Architecture
ISP 1
ISP 2 NAP ISP 3
commercial^ customer
access router
gateway router
dial-in access
destination destination
interdomain^ protocols
intradomain^ protocols
private peering
Cookies
-^
Some user-profile information is stored on user’s
computer
-^
Benign uses of cookies^ –
‘One-click shopping’ information
Results of previous searches
Menu ‘click streams’
Cookies can save customers’ time and reduceload on servers
Controversial use: “Targeted Ads”
DoubleClick can get many
related
cookies
DoubleClick
Customer
Merchant
1
Merchant
N
... ...