E-cert (digital certificate)

From Hongkong Post White memory stick Hongkong Post smart card Memory stick + card reader With your e-cert inside (done by Hong Kong Post) Two programs inside Hongkong Post smart card With your e-cert inside Password envelope Digital signature is as good as a signature on a paper (legally binding)

From Hang Seng Bank Green Bank Card Copy your e-cert to this card later

From E-mice Yellow Card E-cert (sent to you through E-mail) Reference number Password E-cert (sent to you through E-mail) For training only Related to your e-mail account in Lingnan

Look up someone’s public key Personal e-Cert Real certificate www.hongkongpost.gov.hk/pc E-cert for training www.hongkongpost.gov.hk/ec

Liability Keep your password and Hong Kong post card in a safe place. Report to Hong Kong post if you lose your e-cert. Revoke the e-cert

E-cheque consumer accesses the merchant’s server and select goods consumer sends electronic checks to the merchants. E-cert is used to encrypted and digitally sign the e-cheque. merchants verify the consumer’s electronic signature. merchants forward the e-cheque to the clearing house. The clearing house works with banks and transfer money’s to merchants’ account.

What are the benefits? Discuss in groups and present your answers

Barriers to cashless society Individuals Need more training and education Organizations Need more technical support Need more training and education for their staff Need the infrastructure

Digital signatures Arguments with payments (between banks and Clients) Better protection for client Better protection for Banks / financial companies Solution for Micropayment Small amount of payment

Application with digital signatures Many organizations received fake certificates from job applicants. Difficult and time consuming to verify certificates Universities will issue certificate (a file) with digital signature (of the universities) to 0

Other applications Banks Government Others Two factor authentications Tax return (Inland Revenue Department) Renew license Others http://www.hongkongpost.gov.hk/product/ecert/usage/index.html

Green Computing Reduce consumptions of resources More environmental friendly Examples Less papers Less heat Reduce travelling Teleconference

Reengineering Rethinking or radical redesign of business process

Renew of car license (1st version) Submit documents in one counter Verify the documents A long queue Paid the Amount in another counter Distribute the new license in another counter Another long queue

problems At least two or three hours waiting time Overcrowded Everyone stayed there for several hours Air pollutions (people are allowed to smoke) Noisy environment

Renew of car license (2st version) Everything is done in one counter Verify the document Key in data Accept payment Print the new license Benefits Waiting time reduced 5 to 30 minutes

Renew of car license (3rd version) Scan documents Fill in the form online Provide credit card numbers Digitally signed the application (with e-cert) Submit everything with Internet New license will be sent by registered mail

Renew of car license (future version) Scan documents Fill in the form online Provide credit card numbers Digitally signed the application (with e-cert) Submit everything with Internet Electronic License will be sent to the applicant With the digital signature of the government Applicant can print a hard copy (if necessary)

Charge model of Cloud Computing Storage (10 G or 1000G) / period Number of employee Usage of software packages Accounting Customers relations Sales processing Number of invoice Number of servers CPU times

Classes Tuesday, 23 November 2010 Project presention BUG19 Time: 4 pm to 6 pm Bring your personal e-cert to the class Project presention Teams with sequence number 1 to 5 Convince someone to invest (e.g. Bill Gate, Queen Elizabeth, Warren Buffett)

Bonus point exercise 5 bonus point exercise Prepare one page document any new applications of e-cert or How to promote the use of e-cert? Using Microsoft word Bring your personal e-cert to the class Encrypt (with the teacher’s public key) and sign the document (with your private key) Submit it to WebCT

Wednesday Wednesday, 24 November 2010 A short seminar NAB319 Time: 4 pm to 6 pm A short seminar About half an hour Offered by the ITSC

Presentation Rehearsal is important Write your powerpoint file in a CD Check the time Set up milestones Write your powerpoint file in a CD Submit the CD right after your presentation This is your plan B. Punctuality is important Earlier is better for important presentation Work as a team