Electronic Commerce

Essay by ngslUniversity, Bachelor's November 2002

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Electronic Commerce

Initially, the Internet was designed to be used by government and academic users,

but now it is rapidly becoming commercialized. It has on-line "shops", even

electronic "shopping malls". Customers, browsing at their computers, can view

products, read descriptions, and sometimes even try samples. What they lack is

the means to buy from their keyboard, on impulse. They could pay by credit card,

transmitting the necessary data by modem; but intercepting messages on the

Internet is trivially easy for a smart hacker, so sending a credit-card number

in an unscrambled message is inviting trouble. It would be relatively safe to

send a credit card number encrypted with a hard-to-break code. That would

require either a general adoption across the internet of standard encoding

protocols, or the making of prior arrangements between buyers and sellers. Both

consumers and merchants could see a windfall if these problems are solved. For

merchants, a secure and easily divisible supply of electronic money will

motivate more Internet surfers to become on-line shoppers.

Electronic money

will also make it easier for smaller businesses to achieve a level of automation

already enjoyed by many large corporations whose Electronic Data Interchange

heritage means streams of electronic bits now flow instead of cash in back-end

financial processes. We need to resolve four key technology issues before

consumers and merchants anoint electric money with the same real and perceived

values as our tangible bills and coins. These four key areas are: Security,

Authentication, Anonymity, and Divisibility.

Commercial R&D departments and university labs are developing measures to

address security for both Internet and private-network transactions. The

venerable answer to securing sensitive information, like credit-card numbers, is

to encrypt the data before you send it out. MIT's Kerberos, which is named

after the three-headed watchdog of Greek mythology, is one of...