Money that does not have a physical form is known as digital currency, even though it has many of the features of real money. You can use it to pay for your shopping, and with mobiles and tablets to browse internet stores, and pay your bills online. There is no politics or geography involved with the currency, and transactions can be made anywhere in the world.

Cryptocurrency is used as a way of exchange and is very reliable because of the cryptography. One of the main focuses for designers is secure communications which are created using sophisticated protocols and algorithms and ensure information cannot be interrupted by other people.

Cryptography itself is based on mathematical equations and incorporates many different scientific theories and models to ensure maximum security. Using a blockchain, as well as a decentralised ledger, means that the authorities can\'t control or supervisor the network.

The main difference between cryptocurrency and digital currency is the latter is centralised and regulated by a team of people who monitor and record all of the transactions taking place on the network. Digital currency is also far less anonymous and there are many legal frameworks in place. A user ID is also required.