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 Beginning of Paper
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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  ....
 
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 Middle of Paper
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....  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 the best-known-
private-key encryption technologies.  It creates an encrypted data packet,
called a ticket, which securely identifies the user.  To make a purchase, y ....
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