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Blockchain Technology

This course describes the use of cryptography in blockchain technology.

4 videos  //  25 minutes of training

Course description

Blockchain is a promising new technology that draws heavily on cryptographic algorithms to provide its promised features. This course discusses how blockchain technology works and some of the ways that it uses public key cryptography and hash functions to implement a decentralized, immutable public ledger.

Course syllabus

Course IntroductionDuration: 1:22

This video introduces the Blockchain Technology course.

Introduction to BlockchainDuration: 5:48

This video describes the purpose and structure of the blockchain.

Blockchain and Asymmetric CryptographyDuration: 5:15

This video describes the use of asymmetric cryptography in blockchain technology.

Blockchain and Hash FunctionsDuration: 12:37

This video describes the use of hash functions in blockchain technology.

Meet the author

Howard Poston


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 or via his website at

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FireEye, Inc.

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Plans and pricing





$599 / license

Annually. Includes all content plus team admin and reporting.