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Cryptographic Hash Function

Bitcoin and Cryptocurrency Technologies-Week 1

Hash function can produce a fixed lenght digest of any size of data, and the original data can not be found out if it's properly used.

Introduction to crypto and cryptocurrencies

Bitcoin and Cryptocurrency Technologies-Week 1

I have noticed the buzzwords “Bitcoin” and “Blockchain” for a while. There are lots of articles, news, and talks around them. It seems that many people believe that cryptocurrency is the future of online payment, some even claim that blockchain would become the fundamental technology of the next generation of the Internet.