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Stephen Curran and Carol Howard

Data is driving our world today. However, we hear about data breaches and identity thefts all the time. Trust on the Internet is broken, and it needs to be fixed. As such, it is imperative that we adopt a new approach to identity management, and ensure data security and user privacy through tamper-proof transactions and infrastructures.

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Data is driving our world today. However, we hear about data breaches and identity thefts all the time. Trust on the Internet is broken, and it needs to be fixed. As such, it is imperative that we adopt a new approach to identity management, and ensure data security and user privacy through tamper-proof transactions and infrastructures.

Blockchain-based decentralized identity management is revolutionizing this space. The four Hyperledger open source Identity projects, Aries, Indy, AnonCreds, and Ursa, provide the foundation for guilding distributed applications using authentic data. Together, the projects include protocol specifications and open source tools, libraries, and reusable components for establishing secure, peer-to-peer messaging channels that can be used for issuing, holding, presenting, and verifying verifiable credentials. These capabilities enable the creation and use of independent digital identities rooted on blockchains or other distributed ledgers that are interoperable across administrative domains, applications, and any other data silo.

While this course will mention Ursa and dive a bit into Indy and AnonCreds, its main focus is on Aries, and the possibilities Aries brings for building applications on a solid foundation of digital trust. This focus will be explained further in the course but for now, rest assured: if you want to start developing applications that are identity focused and using the blockchain, this is where you need to be.

What you'll learn

  • Build Trust over IP (ToIP) applications for a variety of use cases in the real world.

  • Develop Aries agent code for issuing, presenting, and verifying AnonCreds and other types of credential.

  • Understand the basics of how Hyperledger Indy and other ledgers are used by Aries agents.

  • Understand the architecture and components of Aries agents.

  • Understand the data exchange protocols that are the core of Hyperledger Aries, particularly those involving establishing peer-to-peer connections, and exchanging verifiable credentials and presentations.

  • Learn about the mechanisms and tools used in the broad and diverse Aries community to enable interoperability.

  • Understand DIDComm routing, mediators and relays, their applicability in the Aries general case, and why routing is required for mobile agents.

  • Get started with your own Aries mobile wallet.

  • Understand the requirements in moving to production in an Aries environment.

  • Learn about current happenings in Aries and how you can join and contribute to this amazing community!

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What's inside

Syllabus

Welcome!
Chapter 1. Overview
Chapter 2. Exploring Aries and Aries Agents
Chapter 3. Running a Network for Aries Development
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Chapter 4. Developing Aries Controllers
Chapter 5. Digging Deeper-The Aries Protocols
Chapter 6. DIDCom Message Routing
Chapter 7. Mobile Wallets
Chapter 8. Planning for Production
Chapter 9. What To Do Next
Final Exam (Verified Track only)

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Explores decentralized identity management, which is a groundbreaking approach to identity management
Develops key skills for building applications on a foundation of digital trust
Taught by Stephen Curran and Carol Howard, recognized experts in decentralized identity management
Relies on Hyperledger open source Identity projects and their specifications, tools, libraries, and components
Covers a range of practical skills such as issuing, presenting, and verifying credentials
Course is part of a series by the same instructors on decentralized identity, which may be valuable for continued learning

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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 Becoming a Hyperledger Aries Developer with these activities:
Review cryptography basics
Start this course off by reviewing the basics of cryptography to ensure you have a strong foundation.
Browse courses on Cryptography
Show steps
  • Read through your cryptography notes from previous courses.
  • Review online resources or textbooks on cryptography concepts.
  • Solve practice problems and exercises to test your understanding.
Practice running DIDComm connections
Run through numerous randomized exercises that test your understanding of how DIDComm connections work.
Show steps
  • Setup your environment for running Aries agents
  • Run a simple DIDComm connection
  • Send and receive a message over a DIDComm connection
Practice issuing and verifying credentials
Solidify your understanding of the process of issuing and verifying credentials with different attributes by completing a series of guided exercises.
Browse courses on Verifiable Credentials
Show steps
  • Setup your environment for running Aries agents
  • Create a verifiable credential issuer
  • Issue a verifiable credential
  • Verify a verifiable credential
Three other activities
Expand to see all activities and additional details
Show all six activities
Develop a simple Aries application
Build a simple Aries application from scratch, putting your knowledge of Aries concepts and protocols into practice.
Show steps
  • Choose an Aries use case to focus on
  • Design the architecture of your Aries application
  • Develop the Aries application
  • Test and deploy your Aries application
Write a blog post about an Aries topic
Solidify your understanding of Aries by writing a blog post explaining an Aries concept or use case in detail.
Show steps
  • Choose an Aries topic to write about
  • Research the topic and gather information
  • Write the blog post
  • Publish the blog post
Contribute to the Aries codebase
Deepen your understanding of Aries and give back to the community by contributing to the Aries codebase on GitHub.
Browse courses on Community Involvement
Show steps
  • Find an issue or feature request to work on
  • Fork the Aries codebase
  • Make your changes
  • Submit a pull request

Career center

Learners who complete Becoming a Hyperledger Aries Developer will develop knowledge and skills that may be useful to these careers:
Blockchain Developer
Blockchain Developers craft enterprise blockchain solutions for businesses and organizations. Responsibilities include designing, implementing, and maintaining blockchain systems. *Becoming A Hyperledger Aries Developer* can assist you in learning about Hyperledger Indy and other ledgers, which can help you build a solid foundation in blockchain technology. Furthermore, the course covers topics such as verifiable credentials and presentations, which are crucial for developing decentralized applications that leverage blockchain.
Software Developer
Designing and developing software based on business needs is a Software Developer's typical undertaking. Business and system analysis, along with coding, debugging, and testing are all conducted by Software Developers. The course *Becoming A Hyperledger Aries Developer* can help build a strong foundation in these areas. By learning about Aries agents, DIDComm routing, and other topics, you can be better prepared to develop enterprise-level software that incorporates digital trust and identity.
Identity Architect
Identity Architects are responsible for designing and implementing identity management systems for organizations. This involves developing strategies for managing user identities, provisioning access to resources, and ensuring compliance with regulatory requirements. The course *Becoming A Hyperledger Aries Developer* can be useful in this role by providing a deep understanding of decentralized identity management, including the use of verifiable credentials and digital signatures.
Security Engineer
Security Engineers design, implement, and manage security controls to protect an organization's information and systems. They also conduct security assessments and incident response. Taking *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as data exchange protocols, message routing, and production planning, all of which are relevant to securing an organization's network and data.
Data Analyst
Data Analysts collect, process, and analyze data to help organizations make informed decisions. They use statistical and analytical techniques to identify trends, patterns, and insights in data. *Becoming A Hyperledger Aries Developer* can provide a foundation in data analysis concepts and techniques, as the course covers topics such as decentralized identity management and verifiable credentials, which are relevant to data privacy and security.
Product Manager
Product Managers are responsible for the development and launch of new products or features. They work closely with engineering, design, and marketing teams to ensure that products meet customer needs and business objectives. *Becoming A Hyperledger Aries Developer* can provide a foundation in product management concepts and practices, as the course covers topics such as decentralized identity management, mobile wallets, and production planning, all of which are relevant to product development and launch.
UX Designer
UX Designers create user interfaces for websites, apps, and other digital products. They focus on making these interfaces easy to use and visually appealing. *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as decentralized identity management, mobile wallets, and production planning, all of which are relevant to designing user experiences for digital products.
DevOps Engineer
DevOps Engineers work to bridge the gap between development and operations teams. They automate and streamline the software development process, and ensure that applications are deployed and maintained efficiently. *Becoming A Hyperledger Aries Developer* can be useful for this role, as it covers topics such as decentralized identity management, mobile wallets, and production planning, all of which are relevant to DevOps practices.
System Administrator
System Administrators maintain and manage computer systems and networks. They ensure that systems are running smoothly and securely, and that users have access to the resources they need. *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as decentralized identity management, message routing, and production planning, all of which are relevant to system administration tasks.
IT Architect
IT Architects design and implement IT solutions for organizations. They work with business stakeholders to understand their needs and develop solutions that meet those needs. *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as decentralized identity management, mobile wallets, and production planning, all of which are relevant to IT architecture and design.
Business Analyst
Business Analysts work with businesses to identify and solve problems. They analyze business processes and data, and develop recommendations for improvement. *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as decentralized identity management, mobile wallets, and production planning, all of which are relevant to business analysis.
Data Scientist
Data Scientists use data to solve problems and make predictions. They develop and apply statistical and machine learning models to data, and use the results to inform decision-making. *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as decentralized identity management and data exchange protocols, which are relevant to data science.
Project Manager
Project Managers plan, execute, and close projects. They work with stakeholders to define project scope, develop project plans, and track project progress. *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as mobile wallets, production planning, and Aries community involvement, all of which are relevant to project management.
Technical Writer
Technical Writers create documentation for technical products and services. They work with subject matter experts to gather information and develop clear and concise documentation. *Becoming A Hyperledger Aries Developer* may be useful for this role, as it covers topics such as decentralized identity management, mobile wallets, and production planning, all of which are relevant to technical writing.

Reading list

We've selected five books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Becoming a Hyperledger Aries Developer.
Provides a comprehensive overview of decentralized identity concepts and technologies. It covers topics such as self-sovereign identity, verifiable credentials, and blockchain-based solutions, providing a broader perspective on the ecosystem in which Aries operates.
Provides a comprehensive overview of blockchain technology and its applications. It covers topics such as blockchain architecture, consensus algorithms, and smart contracts, providing a foundational understanding of the underlying concepts used in Hyperledger Aries and other blockchain-based identity solutions.

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