ERC-7995: Encrypted Data

immortal-tofu · August 4, 2025, 11:50pm

ERC-7995 defines a standard for handling encrypted data in Ethereum smart contracts. It introduces:

Encrypted data types (euint256, ebool, etc.) as bytes32 handles.
Off-chain encrypted inputs with validation proofs (externalEuint8, externalEuint16, externalEbool, …).
Smart contract modules for access control, encrypted computation, and decryption via oracles.
Support for homomorphic operations (e.g. addition, comparison) on encrypted values.
JavaScript API for encrypted input generation and user-side or delegated decryption (via EIP-712).

It enables building privacy-preserving DApps, like private voting, sealed-bid auctions, or confidential transfers, while maintaining composability and auditability.

github.com/ethereum/ERCs

Add ERC: Encrypted Data

master ← immortal-tofu:add-encrypted-types

opened 08:08PM - 30 Jul 25 UTC

immortal-tofu

+596 -0

This PR proposes a new ERC introducing a standard for representing, validating, …and operating on encrypted data in Ethereum smart contracts. It defines a set of encrypted data types (euint*, ebool, etc.), validation interfaces for off-chain ciphertexts, and decryption oracle mechanisms for asynchronous decryption. The goal is to enable privacy-preserving dApps that remain composable, auditable, and interoperable across contracts and toolchains.