1. E-Commerce

2. Managing the Marketplace
Technology
Infrastructure
Topology
Security

3. Technology TCP/IP – Transmission control protocol/Internet protocol
Data transport
Circuit switching
Packet switching
A dedicated link between a group of users
Packet Switching
Can share the network and bandwidth

4. Technology.. IP – Routing – Routing and addressing
Setting a route map dynamically between a sender and receiver

5. Technology… Addressing InterNIC – Internet Network Information Center
A unique 32-bit number to identify networks within TCP/IP (e.g., )
DNS server - is converted to an unique IP
IPv4

6. Technology Regional Internet Registries (RIR)
Manages allocation and registration of Internet number resources
NAT – Network address translator
Converts a private IP address to public IP address
IPv4 will be depleted by
IPv6 – 128-bit address space (6×16-bits)
2001:0DB8:0000:1111:0000:0000:0000:0200
FE80:0000:0000:0000:0123:4567:89AB:CDEF

7. Technology… Internet Intranet Extranet Interconnection of networks
Interconnection over the internet or
LAN
Extranet
A common platform for
interconnection between vendors, suppliers, producers over the internet

8. Infrastructure NII – network traffic must be forwarded through
Cable TV
TV and Radio broadcasting
Telephone networks
Cellular communications
Computer networks
Internet

9. Infrastructure MDI – a link between client and server EPI – web BSI –
EDI (formatted)
s (unformatted)
HTTP
EPI – web
URL
Protocol (e.g., HTTP)
HTML
BSI –
Encryption
Payments
Fund transfer
Authentication

10. Infrastructure
E-Commerce Application

11. Electronic Publishing
PDF
HTML

12. Topology Networks can be a cooperation within Stakeholders - Internet
Adobe supports customers and provide financial and other reports to investors
Employees - Intranet
Business partners - Extranet
A link between Buyer and supplier

13. Security
Access control to the server
Authentication

14. Security… Network security components often include:
Antivirus and antispyware
Firewall filtering
Restricts packets with designated IP address
Dedicated firewall systems
A device dedicated for intranet to Internet
Depending on businesses, restricts on
Unauthorized web applications
Unauthorized personnel
Access control lists (ACL)
Intrusion prevention systems (IPS)
Virtual Private Networks (VPNs)

15. Encryption
Sniffer program - looking for a number format for credit cards (e.g., )
Can be of confidential information or financial reports or business ideas
PGP – Pretty Good Privacy
A readily available web encryption
Encryption
Public key - PGP
Public - Private key

16. PGP

17. Decrypt the following…
IQQF PKIJV!