1. CIS 1310 – HTML & CSS 12 E-Commerce Overview

2. CIS 1310 – HTML & CSS Learning Outcomes  Define E-commerce  Identify Benefits & Risks of E-Commerce  Describe E-Commerce Business Models  Describe E-Commerce Security & Encryption  Describe Issues Related to E-Commerce

3. CIS 1310 – HTML & CSS E-Commerce  In Relation to the Sale of Goods & Services: Allow Individuals & Organizations to Exchange Information Integrate Communications, Data Management, & Security Major Functionality: ◦ Buying of Goods ◦ Selling of Goods ◦ Performance of Financial Transactions over the Internet.

4. CIS 1310 – HTML & CSS Advantages  Business Reduced Costs Increased Customer Satisfaction More Effective Data Management Potentially Higher Sales  Consumer Convenience Easier Comparison Shopping Wider Selection of Goods

5. CIS 1310 – HTML & CSS Risks  Business Need for a Robust, Reliable Web Site Fraudulent Transactions Customer Reluctance to Purchase Online Increased Competition  Consumer Possible Security Issues Possible Privacy Issues Purchasing from Photos & Descriptions

6. CIS 1310 – HTML & CSS Issues  Intellectual Property  Security  Fraud  Taxation  International Commerce

7. CIS 1310 – HTML & CSS Trends  Positive Bigger Product Images Glean More Detail More Robust Reviews Useful Coupons  Negative Smaller and Hidden Product Descriptions Fail to Give Feedback After Adding Items to the Cart

8. CIS 1310 – HTML & CSS E-Commerce Business Models  B2C (Business-to-Consumer)  B2B (Business-to-Business)  C2C (Consumer-to-Consumer)  B2G (Business-to-Government)

9. CIS 1310 – HTML & CSS Web Services  Transmit Data Between Companies Using the Internet  Software System  Support Interoperable Machine-to-machine Interaction  Other Systems Interact Using HTTP with XML

10. CIS 1310 – HTML & CSS Security  Encryption Ensures Privacy within Organization & on Internet Converts Data into an Unreadable Format Ciphertext  Decryption Process of Converting Ciphertext Back into its Original Form Plaintext or Cleartext  Encrypt/Decrypt Process Requires Algorithm & Key

11. CIS 1310 – HTML & CSS Symmetric-Key Encryption  AKA Single-key Encryption  Encryption & Decryption Use Same Key  Sender & Receiver Must Know Key Before Communicating Using Encryption  Advantage: Speed

12. CIS 1310 – HTML & CSS Asymmetric-Key Encryption  AKA Public-key Encryption  Two Keys are Created at the Same Time Public Key Private Key  Much Slower than Symmetric-key Encryption

13. CIS 1310 – HTML & CSS Hash Encryption  Purpose is to Verify Integrity of Information  Hash Algorithm Transforms String of Characters Creates “Digest” Shorter Fixed-length Value or Key that Represents Original String  One-way Encryption  For Information that Will Not be Read or Decrypted

14. CIS 1310 – HTML & CSS Secure Sockets Layer (SSL)  Protocol that Allows Data to be Privately Exchanged Over Public Networks  Developed by Netscape  Encrypts Data Sent Between Client & Server  Utilizes Both Symmetric & Asymmetric Keys  https Protocol  Browsers Display a “ Lock ” Icon

15. CIS 1310 – HTML & CSS Secure Sockets Layer (SSL)  Server & (Optionally) Client Digital Certificates For Authentication  Symmetric-key Cryptography Using a "Session Key" for Bulk Encryption  Public-key Cryptography for Transfer of Session Key  Hash Encryption to Verify Integrity of Transmission

16. CIS 1310 – HTML & CSS Digital Certificate  Form of an Asymmetric Key  Used by SSL to Authenticate Identity of Web Server  Contents of a Digital Certificate Include: Public Key Effective Date of Certificate Expiration Date of Certificate Details About Certificate Authority (Issuer) Details About Certificate Holder A Digest of Certificate Content

17. CIS 1310 – HTML & CSS Digital Certificate  Obtaining Request Certificate from a Certificate Authority Pay Application Fee Certificate Authority: Verifies Your Identity Issues Your Certificate Supplies You With a Public/Private Key Pair Store Certificate In Server, Browser, or E-mail Application Certificate Authority Makes Your Certificate Publicly Known