Access Control

allow

Grants permission to a specific address.

FHE.allow(encryptedValue, userAddress);

allowThis

Grants permission to the current contract (address(this)).

Call allowThis after modifying encrypted state variables so the contract can use them in future transactions.

euint32 counter = FHE.add(counter, FHE.asEuint32(1));
FHE.allowThis(counter);

allowPublic

Grants public permission. Anyone can request decryption offchain via decryptForTx without an ACP.

Once called, the value can be decrypted by anyone. Only use this when you intend to reveal the value publicly (e.g., after an auction closes or when unwrapping tokens).

FHE.allowPublic(highestBid);

allowSender

Grants permission to msg.sender.

FHE.allowSender(encryptedValue);

allowTransient

Grants temporary permission to a specific address for the current transaction only.

FHE.allowTransient(encryptedValue, otherContract);

isAllowed

Checks if an address has permission.

bool hasAccess = FHE.isAllowed(encryptedValue, userAddress);

isPubliclyAllowed

Checks if the value has been granted public access via allowPublic.

bool isPublic = FHE.isPubliclyAllowed(encryptedValue);

Introduction

Core Concepts

Confidential Contracts

Examples

Reference

allow

allowThis

allowPublic

allowSender

allowTransient

isAllowed

isPubliclyAllowed

​allow

​allowThis

​allowPublic

​allowSender

​allowTransient

​isAllowed

​isPubliclyAllowed

allow

allowThis

allowPublic

allowSender

allowTransient

isAllowed

isPubliclyAllowed