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[igCS] Authentication

[igCS] Authentication

Assessment

Presentation

Computers

9th Grade

Practice Problem

Easy

Created by

Andy tsui

Used 5+ times

FREE Resource

12 Slides • 7 Questions

1

[igCS] Authentication

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2

Authentication

  • Verify the identity of user or;

  • Verify the data is from a trusted source (e.g. website)

3

Authentication techniques

  • Username and password, PIN

  • Biometrics

  • Digital Signature / Certificate

4

Open Ended

What is Biometric authentication? [2]

5

Open Ended

Name 3 types of biometric authentication technology.

6

Digital Certificate

  • Websites can attach a digital certificate, to prove that it is the authentic website

  • Digital Certificate for email can prove that the sender's identity, and also the message is not altered

  • Digital Certificate is usually issued by a third-party organisation or government

7

Multiple Choice

Activity: Click on the "Lock" next to address bar of browser, find out who's the issuer of the digital certificate of quizizz.com

1

Google Trust Services

2

DigiCert Inc

3

Let's Encrypt

4

Microsoft Corporation

8

Multiple Choice

What is the certificate issuer of Microsoft website?

1

Google Trust Services

2

DigiCert Inc

3

Let's Encrypt

4

Microsoft Corporation

9

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Digital Certitificate for company and personal use can be applied in Macau Post Office

10

More about certificate

  • Browsers will check the authenticity of the certificate

  • Certificate should be issued by trustworthy CA (certificate authority)

  • If certificate does not match, e.g. facelook.com giving out a facebook.com certificate, browser will give warning

11

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something wrong with certificate

12

Multiple Select

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What kind of security threats may results in the browser warning?

1

Phishing

2

Pharming

3

DDoS

4

Keylogger

13

Username and Password

  • Username: To identify the user

  • Password: To Prove that you are that user

14

Chip and PIN system

  • Chip (usually refers to debit card with computer chip)

  • PIN (Personal identification Code, usually refers to number only)

  • Chip and PIN usually used in Payment system (not common in Macau)

  • More secure than magnetic strip cards as data can be encrypted on the chip

15

Hacking passwords

  • Watch following video and write down what the password hackers will try

  • https://www.youtube.com/watch?v=97CdJFyAv1s&has_verified=1


16

Open Ended

Give 3 rules that makes the password difficult to guess [3]

17

Strong passwords

  • Password that is "difficult" to guess by the hackers

  • Difficult refers to a reasonable amount of time and computation power

  • The difficulty will varies as the computer is getting faster and faster

  • In general increasing password length will make the difficult exponentially increase

18

Open Ended

Suggest one security measure that a website can prevent password hackers.

19

Other measures to prevent brute force

  • Captcha

  • Firewall

  • 2FA - two factors authentication


[igCS] Authentication

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