The privacy paradox has been a stumbling block for blockchain technology that always seemed to accept trade-offs about security to maintain decentralization, scalability, transparency, and immutability. As a result, the web3 ecosystem has grown at a staggered rate with not much user confidence. Many protocols have been trying to solve the privacy puzzle and Oasis Network has been a pioneer in this regard.

Oasis first introduced a confidential WASM runtime with Cipher and the EVM runtime Emerald. However, enabling privacy for EVM dApps was always the goal, and hence came the industry's first-ever confidential EVM – Sapphire. With smart privacy solutions, Sapphire, using trusted execution environments or TEEs, is a great setup for Solidity developers trying to build the next-gen web3 dApps. But what about those dApps that are already up and running on other EVM networks? How will their privacy needs be answered?

The solution is OPL or the Oasis Privacy Layer. With a framework of only a few hundred lines of code, OPL acts as a gateway to privacy for any web3 dApp on any EVM network. It is powered by Sapphire, meaning all the smart privacy solutions are available along with these USPs:

• Customizable privacy – not all dApps require the same levels of privacy. so, OPL offers a full spectrum from fully public to completely confidential.
• Cross-chain convenience – interoperability is a prime feature. the message-passing bridge of OPL is integrated with Celer's IM framework and seamlessly synchronizes the home network with Sapphire. The whole process takes place without migrating chains where only the confidential computation of the secret state functionalities of the dApp are passed to and fro via signed encrypted messages. Moreover, the transaction fees are payable in the home network's native token via the gas relayer network, so users are not even required to acquire Oasis tokens Rose for the gas.

https://preview.redd.it/pw4l30yzoagb1.png?width=2000&format=png&auto=webp&s=710d0860295e5dc2155fd05b6ba8722e5fed67f3

• Productive transparency – making all dApp operations on-chain means full transparency which may seem to be in line with blockchain's tenet of decentralization, is actually counterproductive. so, OPL offers discretionary transparency.

The advantages and utility of OPL as a tool for fostering web3 privacy cannot be overstated. It has applicability potential in DeFi, DAOs, web3 gaming and metaverse, NFTs, etc. Use cases in the form of secret ballots, confidential auctions, and private game logic have already been garnering much attention. OPL is committed to making smart privacy a default mode in web3 as it empowers flexible features and functionalities without recourse to being expensive, complex, or rigid. As a Solidity developer, it is a dApp builder's paradise. As an end user, your web3 experience will be better, safer, and more secure as you enjoy data sovereignty with no hidden limitations.