Privacy projectOasis Sapphire: Confidential EVM. Technology: trusted execution environments (TEEs).
Oasis Sapphire is the confidential EVM that has been in production the longest: ordinary Solidity, encrypted state and encrypted calldata, running inside Intel SGX enclaves. The developer experience is deliberately close to a normal EVM chain, which is why teams can ship on it without relearning how to write contracts. Oasis has also been unusually candid about the hardware it stands on, publishing its own analysis of the SGX key-extraction research and, in response to it, restricting the committees that hold encryption keys to vetted operator partners. Value locked on the network is modest, and the strength of the model tracks the strength of the enclave underneath it.
Key facts
- Entry type
- Privacy project
- Category
- Confidential EVM
- Technology
- Trusted execution environment (TEE)
- Website
- oasisprotocol.org
What is trusted execution environment?
Computation runs inside an isolated hardware enclave whose contents the host operating system cannot read, under a hardware-trust assumption.
How it compares with the other approaches on latency, trust assumptions and fit is set out, with sources, in the technology taxonomy.
Private by design.
See how confidential transactions work on the networks you already use.