Electronic Commerce (3)

• On the internet it is common to deal with vendors and clients we have never meet before, who have no reputation, and whom we can never meet again
• E-commerce allows do business over the Internet (insecure network). Security based on
  • SSL Secure Socket Layer
  • SET Secure Electronic Transaction
  • X.509 certificates; used to authenticates customers
• SET and SSL are widely known communication protocols, each providing a way to make payments over the Internet

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