The concept of Atomic Swaps was introduced to eliminate any third party exchange platform for cryptocurrencies. The aim is to enable people to trade in crypto with each other via the wallet-to-wallet procedure. As per the expert view, it can completely change the way people transfer money in the world of cryptocurrencies.
Let’s take up a scenario where A has Bitcoin, which he wants to sell for ETH. Likewise, a B has an ETH, which he wants to exchange for Bitcoin. In such a case, A and B will have to buy their crypto and get new ones with a centralized exchange. However, such a transaction does have its vulnerabilities.
An atomic swap is the peer-to-peer exchange of cryptocurrencies between parties without the involvement of a third party centralized crypto exchange. It enables the exchange of being executed with different native coins between separate blockchains. Or else it can also be executed through off-chain channels of the main blockchain. The first successful implementation of atomic swaps happened in 2017, and the ones involved were Litecoin and Decreed.
Atomic swaps take place using Hashed Timelock Contracts or HTLCs, a unique variety of off-chain state channels that enable payment in two-way communication between the parties. It allows them to conduct interactions on and off the blockchain. With no dependability on a third party exchange, this process minimizes the transaction time. The submission of cryptographic proofs validates the payments. The basic idea is to use a multi-signature transaction system that will hold the parties involved accountable for the swap of crypto to be a success.
Atomic swaps, like many things in the crypto world, are still a work in progress. Apart from a few vulnerabilities, experts believe that it can revolutionize the way people exchange crypto in the days to come.