This course is part of the Advanced System Security Design Specialization

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32 ratings

Edward Chow +2 more instructors

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Advanced System Security Design SpecializationUniversity of Colorado System

About this Course

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In this MOOC,  we will learn about TOR basic concept and see how they protect the security and privacy of users and resist censorship. We will examine how TOR realize the anonymity and utilize its service by downloading and using Tor browser software. A recent attack on TOR’s application flow control called sniper attacks is analyzed.  We introduce the hidden service provided by TOR and show how it can be denonymized.  We will learn how to setup a hidden server to provide web service on AWS instance. We will also learn the best practices and operational security in providing the hidden services.  We will learn how to manage the hidden server using Tor circuit and configure the web server not to reveal the software version information.  We also show how it can be defended.   To improve TOR’s performance, we discuss the cloud based TOR and their implementation. 
By the end of this course, you should be able to utilize TOR browser to protect  your privacy, set up hidden service on current interface  that protect your servers and make it anonymous, you will choosing entry guards wisely since your adversary will try to attack them with DDoS traffic and force you to choose their relay as your entry and exit router. We will also learn the basic components of both censorship and censorship resistance systems, and the scheme deployed by these systems and their attacks.

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Course 3 of 4 in the

Advanced System Security Design Specialization

Intermediate Level

Approx. 22 hours to complete

English

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Flexible deadlines

Reset deadlines in accordance to your schedule.

Shareable Certificate

Earn a Certificate upon completion

100% online

Start instantly and learn at your own schedule.

Coursera Labs

Includes hands on learning projects.

Learn more about Coursera Labs

Course 3 of 4 in the

Advanced System Security Design Specialization

Intermediate Level

Approx. 22 hours to complete

English

Could your company benefit from training employees on in-demand skills?

Try Coursera for Business

Instructors

Instructor rating

3.71/5 (7 Ratings)

Offered by

University of Colorado System

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Syllabus - What you will learn from this course

Week1

Week 1

5 hours to complete

The Onion Routing (TOR)

In this module, we learn the basic concepts of Tor network for protecting the privacy of Tor users and how to use the Tor browser features to access the web sites while preserving the anonimity, change the entry guard and exit node of the Tor circuit, learn how to setup Tor software package on a Linux machine and start its service, and use torify to run network commands, such as ssh or curl command, but use a Tor circuit as an outgoing connection

5 hours to complete

4 videos (Total 24 min), 3 readings, 4 quizzes

Week2

Week 2

5 hours to complete

Hidden Service on TOR and their Attacks

5 hours to complete

3 videos (Total 20 min), 1 reading, 3 quizzes

Week3

Week 3

6 hours to complete

Censorship Systems

In this module we learn the basic components of the censorship systems, the censor model and the related challenges. We learn to define the censor's sphere of influence and sphere of visibility, and their impact on the techniques that can be deployed by the censorship systems. We will be able to describe the basic components of the censor's attack model, explain different fingerprinting methods and evaluating their strength and weakness. We will study different direct censorship method and learn the limitations imposed upon the range of censorship actions.

6 hours to complete

5 videos (Total 35 min), 5 readings, 6 quizzes

5 videos

Censor Model and Censorship Resistance System Survey Result7mL3-2 CS6910 Censor Attack Model and Apparatus10mL3-3 Fingerprinting6mL3-4. Direct Censorship4mL3.5. Range of Censorship Actions5m

5 readings

Read Section 1 of "SoK: Making Sense of Censorship Resistance Systems"10mRead censorship apparatus model and censor's attack model10mL3-3. Fingerprinting.10mL3.4. Direct Censorship10mL3.5. Range of Censorship Actions10m

6 practice exercises

L1 Practice Quiz30mL3.2 Practice Quiz30mL3.3 Practice Quiz30mL3.4 Practice Quiz30mL3.5 Practice Quiz30mM3 Exam2h

Week4

Week 4

6 hours to complete

Censorship Resistance System (CRS)

In this module, we will learn the two main functional components of censorship resistance system (CRS) and explain the steps to establish the CRS communications. We will understand the operating requirements for establishing the CRS communications and learn the techniques for hiding information and avoid tracking using CRS channels. We will learn the basic CRS properties shared by CRS' and their purposes. We will comprehend different methods for obtaining CRS credentials and reduce faking/testing of them. We will be able to deploy different schemes for resisting active probing, identify different schemes to establish user trust. We will learn how to implement methods for evading censor detection and blocking. We will understand various methods for protecting publisher information and current open and active CRS research areas.

6 hours to complete

5 videos (Total 28 min), 5 readings, 6 quizzes

5 videos

L4.1. Overview of Censorship Resistance Systems5mL4.2. CRS Properties11mL4.3. Techniques for CRS Communication Establishment Phase3mL4.4. Techniques for CRS Conversation Phase.4mL4.5. Open CRS Research Areas3m

5 readings

L4.1. Censorship Resistancde System Overview10mL4.2. CRS Properties.10mL4.3. Techniques for Communication Establishment Phase .10mL4.4. Techniques for Conversation Phase10mL4.5. Open Areas and Research Challenges.10m

6 practice exercises

L4.1 Practice Quiz30mL4.2 Practice Quiz30mL4.3 Practice Quiz30mL4.4 Practice Quiz30mL4.5 Practice Quiz30mM4 Exam2h

Reviews

4.2

4 reviews

5 stars
56.25%
4 stars
28.12%
3 stars
6.25%
1 star
9.37%

TOP REVIEWS FROM SECURITY AND PRIVACY IN TOR NETWORK

by DNov 29, 2020

The course was excellent but I had some difficulty listening because of the pronunciations, other than that it was an excellent course.

by VMJun 28, 2020

Very good Course. I learned lots of new things about TOR ,Censorship and Censorship Resistance System (CRS). Thanks.

View all reviews

About the Advanced System Security Design Specialization

This specialization is intended for intermediate level learners with basic programming skills and basic cybersecurity knowledge. Through this course learner will learn about advanced secure software techniques such as those for cloud computing, TOR, web-based cryptography, and geo-location/context based access control. With these techniques, learners will be better prepared to implement new security and privacy preserving data security features, to perform secure system design and implementation, vulnerability analysis, and Securely Provision (SP), Operate and Maintain (OM), Oversee and Govern (OV), Protect and Defend (PR), Analyze (AN), Collect and Operate (CO), and investigate (IN) tasks.

Frequently Asked Questions

When will I have access to the lectures and assignments?
Access to lectures and assignments depends on your type of enrollment. If you take a course in audit mode, you will be able to see most course materials for free. To access graded assignments and to earn a Certificate, you will need to purchase the Certificate experience, during or after your audit. If you don't see the audit option:
The course may not offer an audit option. You can try a Free Trial instead, or apply for Financial Aid.
The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.
What will I get if I subscribe to this Specialization?
When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile. If you only want to read and view the course content, you can audit the course for free.
Is financial aid available?
Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

More questions? Visit the Learner Help Center.

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Security and Privacy in TOR Network

About this Course

Instructors

Edward Chow

Greg Williams

Richard White

Offered by

University of Colorado System

Syllabus - What you will learn from this course

The Onion Routing (TOR)

Hidden Service on TOR and their Attacks

Censorship Systems

Censorship Resistance System (CRS)

Reviews

TOP REVIEWS FROM SECURITY AND PRIVACY IN TOR NETWORK

About the Advanced System Security Design Specialization

Frequently Asked Questions

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Security and Privacy in TOR Network

About this Course

Instructors

Edward Chow

Greg Williams

Richard White

Offered by

University of Colorado System

Syllabus - What you will learn from this course

The Onion Routing (TOR)

Hidden Service on TOR and their Attacks

Censorship Systems

Censorship Resistance System (CRS)

Reviews

TOP REVIEWS FROM SECURITY AND PRIVACY IN TOR NETWORK

About the Advanced System Security Design Specialization

Frequently Asked Questions

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