Unopinionated Confidential ERC-20 Framework (UCEF)
Enable private, gas-efficient, and composable token transactions while maintaining full ERC-20 compatibility.
Why UCEF?
ERC-20 compatibility
ERC-20 lacks built-in privacy, exposing balances and transactions on-chain. UCEF provides confidential transactions and ensures compatibility with existing ERC-20 dApps, wallets, and exchanges.
Cryptography-agnostic
UCEF doesn’t lock developers into a single privacy technology. Choose your own cryptographic approach — TEE, FHE, MPC, or ZKPs — without changing how your smart contracts interact with the Ethereum ecosystem.
Privacy without complexity
By leveraging native Solidity constructs, the UCEF approach simplifies auditing, maintains gas efficiency, and keeps cryptographic complexity outside the smart contract – making it practical for real-world applications.
Solution & Benefits
A future-proof approach to confidential ERC-20 tokens
Unmodified ERC-20 Interface
No modifications to function names or outputs. Works seamlessly across DeFi and enterprise applications.
No Custom Libraries or Cryptographic Proofs Required
Use your preferred privacy-preserving method without being tied to a specific implementation.
Expressible in Solidity
The UCEF implementation enforces privacy using standard Solidity authorisation checks.
Gas-Efficient & Auditable
Optimised for low-cost transactions while maintaining security and transparency.
Programmable Confidentiality
Developers can define visibility rules to control access to balance and transaction data.
Enterprise-Ready
Suitable for tokenised financial instruments, institutional DeFi, and privacy-conscious blockchain solutions.
How Silent Data compares
Feature
Confidential Balances
Fully Anonymous Accounts
Programmable Confidentiality
Unmodified ERC-20 Interface
Cryptography Agnostic
UCEF
Silent Data
fhEVM ERC-20
(Zama)
Partial Support
Confidential ERC-20
(Inco & Circle)
Partial Support
Private ERC-20
(COTI)
