Aleksander Berentsen, a research fellow at the Federal Reserve bank of St. Louis, and his colleague, Fabian Schar, had authored a paper in which they acknowledged it was easy for central banks to create their own cryptocurrency.“However, the key characteristics of cryptocurrencies are a red flag for central banks,” the researchers noted. The paper, titled “The Case for Central Bank Electronic Money and the Non-case for Central Bank Cryptocurrencies” explained that it is imperative for law enforcement purposes that the identities of people involved in financial transactions be known publicly.