April 2020
Intermediate to advanced
244 pages
7h 20m
English
Content preview from Securing Blockchain Networks like Ethereum and Hyperledger Fabric
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Cryptography and the blockchain
The uses of cryptography (especially the functions offered by asymmetric cryptography) in the blockchain ecosystem are manifold.
In particular, through the use of public and private keys created using asymmetric cryptography, it is possible to uniquely identify the counterparties of a transaction within a blockchain (for example, the public keys are used in Bitcoins as unique addresses that identify their owner). Similarly, the private keys are used in digital signatures, allowing, in this way, to unequivocally establish the ownership of the assets exchanged in a transaction.
Equally important are the uses of hashing functions, adopted, for example, to determine the links between the blocks of the blockchain, ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.