Oasis has unveiled Sapphire, a new confidential blockchain compatible with the Ethereum Virtual Machine (EVM), aiming to offer enhanced privacy features for decentralized applications (DApps). By introducing the Oasis Privacy Layer (OPL) alongside Sapphire, existing DApps on the EVM network can easily integrate and benefit from the blockchain's privacy-first capabilities without the need for cross-chain swaps of individual tokens.
Oasis Foundation Director, Jernej Kos, emphasized that OPL enables developers to incorporate various Sapphire features into their DApps on any EVM network without having to migrate to the Oasis blockchain entirely. This means developers can leverage familiar environments, like Solidity smart contracts on Ethereum, to build private smart contracts.
Furthermore, the introduction of Sapphire enhances the interoperability of DApps across different chains, enabling compatibility between them. One use case involves having a core DAO smart contract on Ethereum while conducting fully private voting on Sapphire. The final The results can then be relayed back to the core DAO contract, exposing Sapphire's privacy features to other chains as well.
Most DApps developed on Oasis are privacy-centric, emphasizing user control over their on-chain data and its sharing and accessibility. The Oasis ecosystem includes various tools and platforms that align with this privacy focus. Some notable use cases within the Oasis chain include confidential decentralized exchanges, privacy-enabled blockchain gaming, account abstraction, confidential non-fungible tokens, private voting, sealed-bid auctions, key management, and decentralized identity.
