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In episode 12, Bill laid out his strategy to handle data hashing on his blockchain. The first step he took was to create a package to handle the cryptographical aspects of his blockchain. After that, he wrote a hash function that met the requirements outlined in his strategy. This function took transaction data as a parameter and returned a hexadecimal representation of the hash. To implement this function, Bill imported packages from the Go standard library and Ethereum API.
In this video, Bill will begin to define the components required to generate a digital signature of his blockchain’s transactions. He begins by discussing the concept of adding a salt value to a hash. Bill does this to explain how Bitcoin and Enthereum also use a salt to uniquely stamp transactions being sent to the node for processing. For his blockchain, Bill defined a function called stamp which will add the salt to his transaction data that is sent from the client to the node. Watch and learn how to stamp a transaction, implement the keccak256 algorithm in Go, and the security issues mitigated by stamping transactions.
Things you will learn in this video
We have taught Go to thousands of developers all around the world since 2014. There is no other company that has been doing it longer and our material has proven to help jump start developers 6 to 12 months ahead of their knowledge of Go. We know what knowledge developers need in order to be productive and efficient when writing software in Go.
Our classes are perfect for both experienced and beginning engineers. We start every class from the beginning and get very detailed about the internals, mechanics, specification, guidelines, best practices and design philosophies. We cover a lot about "if performance matters" with a focus on mechanical sympathy, data oriented design, decoupling and writing production software.
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