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Course Introduction
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This video introduces our blockchain security course, providing an overview of topics to be covered.
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Introduction to Blockchain
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This video introduces the blockchain and discusses the promises of blockchain.
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Structure of the Blockchain
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This video describes the “blocks” and “chains” that make up the blockchain.
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Public-Key Cryptography in Blockchain
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This video introduces public-key cryptography and describes how it is used in blockchain.
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Blockchain Security: Public-Key Cryptography
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This video discusses ways that public-key cryptography can be attacked and the potential impact on blockchain.
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Hash Functions in Blockchain
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This video introduces hash functions and describes how they are used in blockchain.
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Course Recap
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This video reviews the information covered in this course and introduces the next one.
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Blockchain Security Hash Functions
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This video discusses ways that hash functions can be attacked and the potential impact on blockchain.
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Welcome to Blockchain Security!
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Syllabus
Syllabus
Course description
This course introduces the fundamentals of blockchain security. Early videos describe the foundational concepts of blockchain and how the components of the blockchain are put together to provide these properties. Later videos discuss the cryptography used


Meet the author
Howard Poston is a cybersecurity researcher with a background in blockchain, cryptography and malware analysis. He has a master’s degree in Cyber Operations from the Air Force Institute of Technology and two years of experience in cybersecurity research and development at Sandia National Labs. He currently works as a freelance consultant providing training and content creation for cyber and blockchain security. He can be reached by email at howard.poston@gmail.com or via his website at https://www.howardposton.com.
Associated NICE Work Roles
All Infosec training maps directly to the NICE Workforce Framework for Cybersecurity to guide you from beginner to expert across 52 Work Roles.
- All-Source Analyst
- Mission Assessment Specialist
- Multi-Disciplined Language Analyst
You're in good company
We use Infosec Skills to provide continuous training to our technicians and to prepare them for various certifications. Infosec Skills allows us to create personalized training programs that focus on each of our technicians’ particular roles and see their progress as they take courses. We also, recommend it to clients to make their IT support teams better.
Caleb Yankus
This has been utilized to bridge the skills gap across our cyber team and to aid them as they prepare for their various certifications. It also has provided a nice learning foundation for our various cyber team members to utilize as we continue to find ways for cross-utilization with operations while minimizing the downtime needed to ensure everyone’s knowledge is the same.
Daniel Simpson
We use Infosec Skills to provide base level knowledge for employees. We also use the services to provide in depth learning for employees as they encounter new technologies. If an employee is is assigned to a new project, we can rely on Infosec Skills to provide a rapid concentrated learning environment. This rapid concentrated learning positions our employees for success.
Infosec Skills Teams client
Plans & pricing
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Infosec Skills Personal
- 190+ role-guided learning paths (e.g., Ethical Hacking, Threat Hunting)
- 100s of hands-on labs in cloud-hosted cyber ranges
- Custom certification practice exams (e.g., CISSP, Security+)
- Skill assessments
- Infosec peer community support
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Infosec Skills Teams
- Team administration and reporting
- Dedicated client success manager
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Single sign-on (SSO)
Easily authenticate and manage your learners by connecting to any identity provider that supports the SAML 2.0 standard.
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Integrations via API
Retrieve training performance and engagement metrics and integrate learner data into your existing LMS or HRS.
- 190+ role-guided learning paths and assessments (e.g., Incident Response)
- 100s of hands-on labs in cloud-hosted cyber ranges
- Create and assign custom learning paths
- Custom certification practice exams (e.g., CISSP, CISA)
- Optional upgrade: Guarantee team certification with live boot camps
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