From the blockchain to quantum cryptography

Whoever Satoshi Nakamoto is or was, the author’s 2008 paper on blockchain technology is now regarded as one of the most important developments in computer science this century. As the blockchain is increasingly used as a platform for building cryptocurrencies like Bitcoin and Ethereum, more and more researchers are getting involved in the science behind the cryptography that’s driving it – including in Ireland.

That’s because developments in cryptography have made the blockchain what it is today: a secure system for making transactions across an open distributed ledger. The cryptography behind it is a kind of public key technology, which was first invented in the 1970s, and provides a fast and efficient way for many people to use encryption at the same time, and communicate securely with each other.

Prof Gary McGuire, at UCD School of Mathematics and Statistics leads a research group working on the topic. “Blockchain technology uses a type of public-key cryptography known as elliptic curve cryptography,” he says, “which uses the complicated arithmetic operations that can be done on an elliptic curve to obtain security.” ..Read More..

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