A cryptocurrency is a digital means of exchange.1 The first cryptoneon to start operating was Bitcoin in 2009,2 and since then many others have appeared, with different characteristics and protocols such as Litecoin, Ethereum, Ripple, Dogecoin.
Dozens of cryptones have already appeared with different specifications, but most of them are similar or derived from the first one that has been fully implemented; The Bitcoin.
When comparing a criptomoneda with the fiduciary money the most notable difference is the way in which no group or individual can accelerate the production of money and to use this of illegal form or abusively of significant way. This is because the generation of a certain amount of coin units is done collectively, at a rate that is limited by a previously defined and publicly known value.
The first attempts to integrate cryptography with electronic money was made by David Chaum using DigiCash and ecash, which used cryptography to anonymize money transactions, albeit with centralized issuance and settlement (payment). The concept or idea of cryptononeda was first described by Wei Dai in 1998, where he proposed the idea of creating a new kind of decentralized money that used cryptography as a means of control, 6 while the first cryptoneon to be created was Bitcoin, created in 2009 by the pseudonym developer Satoshi Nakamoto, which uses the SHA-2 cryptographic function set (exactly the SHA-256) as its POW (proof-of-work) scheme.