Security and Privacy in TOR Network from Coursera

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.

What's inside

Syllabus

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

Hidden Service on TOR and their Attacks

In this module, we learn how the hidden service architecture and protocol work, and how to set up the hidden server to provide network services on the Tor network without revealing the public IP address. We also learn the best practice of managing the hidden server anonymously and hide the version information of web server, OS, and installed software packages.

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.

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.

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Taught by Richard White, Greg Williams, Edward Chow, who are recognized for their work in censorship, security, and privacy

Specifically designed to explain the fundamentals of the Tor network and its applications in censorship resistance and privacy protection

Suitable for learners with a background in computer networks and security

Offers a comprehensive exploration of Tor and provides practical skills in using the Tor browser and setting up hidden services

Provides a strong foundation for understanding the technical aspects of censorship and the strategies used to resist it

Covers advanced topics such as cloud-based Tor and hidden services, which are essential for practitioners in the field

Reviews summary

Knowledgeable tor security course

Learners say they are largely positive about this Tor Network security and privacy course. Students found the course to be very good and indicated that they learned lots of new things. However, there were some concerns raised by one student about the instructor's pronunciation and difficulty understanding the course material. Overall, this course provides engaging assignments and resources for students interested in learning more about TOR and related topics.

Learners found the course content to be engaging and informative.

"Very Good Learning about Tor."

"Very good Course. I learned lots of new things about TOR"

One student expressed difficulty understanding the instructor's pronunciation.

"I had some difficulty listening because of the pronunciations"

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Security and Privacy in TOR Network with these activities:

Organize and review course resources

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Stay organized and maximize your learning by compiling and reviewing the provided course materials regularly.

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Gather and store course materials in a central location
Review materials consistently to reinforce learning
Highlight and annotate key concepts for better understanding

Assist fellow learners in the course

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Contribute to the course community by sharing your knowledge and providing guidance to fellow learners.

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Join the course discussion forum
Answer questions and provide support to other learners
Collaborate on projects or assignments

Review TOR fundamentals

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Refresh your understanding of TOR's concepts and mechanisms to lay a strong foundation for the course.

Browse courses on Tor

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Revisit the TOR documentation
Watch video tutorials on TOR's architecture and operation
Join online forums or discussion groups dedicated to TOR

Five other activities

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Experiment with TOR browser features

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Gain hands-on experience by exploring different TOR browser features and experimenting with their impact on privacy and anonymity.

Browse courses on Tor Browser

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Download and install the TOR browser
Adjust privacy settings and security measures
Browse websites and observe the changes in IP addresses and traffic patterns

Deploy a hidden service on TOR

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Gain practical experience in deploying and managing a hidden service on the TOR network, providing anonymity and security.

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Choose an appropriate platform and server configuration
Set up the necessary software and dependencies
Configure the hidden service and test its functionality
Implement security measures to protect the hidden service

Defense against Sniper attacks

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Develop practical skills in defending against Sniper attacks, a sophisticated technique that can compromise TOR's anonymity.

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Study the principles and techniques behind Sniper attacks
Set up a test environment to simulate and analyze Sniper attacks
Implement countermeasures and defenses to mitigate Sniper attacks

Attend a TOR workshop or conference

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Engage with experts and peers at a workshop or conference to gain insights, share knowledge, and expand your network.

Browse courses on Tor

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Research upcoming TOR-related events
Register for and attend the event
Participate actively in discussions and networking opportunities

Design a censorship resistance system (CRS)

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Apply your knowledge to design and create a proposal for a CRS, a critical tool for protecting freedom of expression online.

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Research and analyze existing CRS techniques
Propose a novel CRS design with improved functionality or security
Develop a detailed implementation plan for the CRS

Career center

Learners who complete Security and Privacy in TOR Network will develop knowledge and skills that may be useful to these careers:

Ethical Hacker

Ethical Hackers are involved in helping organizations maintain strong cybersecurity measures and identify vulnerabilities in their systems by simulating potential attacks. As an Ethical Hacker, one would constantly remain up-to-date with the latest cybersecurity trends and tools to stay one step ahead of potential threats. This course will help you develop the essential skills needed to become an Ethical Hacker, including a deep understanding of TOR and its applications. With a fit score of 86, this course can help you excel in this role.

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Network Security Analyst

Network Security Analysts are responsible for preventing and mitigating security breaches by monitoring, detecting, and analyzing network traffic and security events. By understanding TOR and its capabilities, Network Security Analysts can optimize network security measures to better handle malicious activities and increase the resilience of an organization's network. This course, with a fit score of 80, can be highly beneficial for individuals seeking a career in this field.

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Information Security Analyst

Information Security Analysts help protect an organization's information assets by identifying and mitigating potential risks. In this role, an understanding of TOR and hidden services is crucial for detecting and preventing attempts to access or exfiltrate sensitive data anonymously. This course, with a fit score of 78, is highly recommended for aspiring Information Security Analysts seeking to develop a comprehensive understanding of network security.

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Security Engineer

Security Engineers design, implement, and maintain security measures to protect an organization's IT infrastructure. This course provides valuable insights into TOR, hidden services, and censorship resistance systems, which are essential concepts for Security Engineers to grasp. By understanding the principles behind these technologies, Security Engineers can enhance the security posture of their organizations. With a fit score of 76, this course can be a valuable asset for those pursuing a career in this field.

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Cybersecurity Analyst

Cybersecurity Analysts are involved in protecting computer networks and systems from unauthorized access, use, disclosure, disruption, modification, or destruction. A deep understanding of TOR and its applications is highly sought after in this field, as it equips Cybersecurity Analysts with the knowledge to protect against attacks that leverage anonymity and privacy features. This course, with a fit score of 75, can significantly contribute to the skillset of aspiring Cybersecurity Analysts.

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Privacy Engineer

Privacy Engineers are responsible for ensuring that an organization's products and services comply with privacy regulations and ethical standards. A thorough understanding of TOR and censorship resistance systems is vital in this role, as Privacy Engineers must have the expertise to protect user privacy and anonymity online. With a fit score of 72, this course can provide a strong foundation for individuals seeking a career in this field.

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Computer Network Architect

Computer Network Architects design, implement, and maintain computer networks for organizations. A deep understanding of TOR and its implications on network security is essential for Computer Network Architects to effectively design and secure networks. By taking this course, individuals can gain the necessary knowledge to excel in this role. With a fit score of 70, this course can be a valuable asset for aspiring Computer Network Architects.

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Cloud Security Architect

Cloud Security Architects are responsible for designing and implementing security measures for cloud computing environments. A working knowledge of TOR and its applications is beneficial in this role, as it enables Cloud Security Architects to understand the security implications of using cloud services and develop effective countermeasures. This course, with a fit score of 68, can contribute to the skillset of individuals pursuing a career in this field.

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Security Consultant

Security Consultants provide advice and guidance to organizations on how to improve their security posture. By understanding TOR and its capabilities, Security Consultants can better assess an organization's security risks and recommend appropriate mitigation strategies. This course, with a fit score of 65, can help individuals develop the necessary knowledge to succeed in this role.

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Penetration Tester

Penetration Testers are responsible for identifying vulnerabilities in an organization's computer systems and networks. A deep understanding of TOR and its applications is essential for Penetration Testers to effectively simulate real-world attacks and uncover potential security weaknesses. With a fit score of 63, this course can provide valuable insights for individuals aspiring to become Penetration Testers.

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Forensic Analyst

Forensic Analysts investigate computer systems and networks to collect and analyze evidence of cybercrimes. A working knowledge of TOR and its applications is beneficial in this role, as it enables Forensic Analysts to understand the techniques used by attackers to conceal their activities and uncover digital evidence. This course, with a fit score of 60, can contribute to the skillset of individuals pursuing a career in this field.

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Incident Responder

Incident Responders are responsible for responding to and mitigating security incidents. A deep understanding of TOR and its applications is beneficial in this role, as it enables Incident Responders to quickly identify the scope and impact of an attack and take appropriate countermeasures. With a fit score of 58, this course can provide valuable insights for individuals aspiring to become Incident Responders.

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Security Manager

Security Managers are responsible for overseeing an organization's security program and ensuring compliance with security policies and regulations. A working knowledge of TOR and its applications can be beneficial in this role, as it enables Security Managers to make informed decisions about security investments and strategies. This course, with a fit score of 55, can contribute to the skillset of individuals pursuing a career in this field.

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IT Auditor

IT Auditors evaluate an organization's IT systems and controls to ensure compliance with regulations and standards. A basic understanding of TOR and its applications can be beneficial in this role, as it enables IT Auditors to assess the organization's security posture and identify potential risks. With a fit score of 50, this course can provide a foundation for individuals aspiring to become IT Auditors.

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Cybersecurity Researcher

Cybersecurity Researchers develop new techniques and technologies to protect against cyber threats. A deep understanding of TOR and its applications is beneficial in this role, as it enables Cybersecurity Researchers to identify vulnerabilities in existing security measures and develop innovative solutions. With a fit score of 48, this course can provide valuable insights for individuals aspiring to become Cybersecurity Researchers.

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