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zeekayandHanzo Dev
a8c164c427
A rebrand renamed third-party names it did not own. @luxfhe-fhe/relayer-sdk and @luxfhe-fhe/oracle-solidity were never published, and @fhevm/solidity ships config/ZamaConfig.sol, not LuxConfig.sol, so nothing installed and no contract compiled. The overrides now say what the lockfile already resolved (@zama-fhe/relayer-sdk ^0.3.0-8, @zama-fhe/oracle-solidity ^0.2.0), and the relayer bundle loads from cdn.zama.org, the host that serves it. Co-authored-by: Hanzo Dev <[email protected]>
47 lines
1.8 KiB
Solidity
47 lines
1.8 KiB
Solidity
// SPDX-License-Identifier: BSD-3-Clause-Clear
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pragma solidity ^0.8.24;
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import {FHE, euint8, externalEuint8} from "@fhevm/solidity/lib/FHE.sol";
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import {ZamaEthereumConfig} from "@fhevm/solidity/config/ZamaConfig.sol";
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contract FHEAdd is ZamaEthereumConfig {
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euint8 private _a;
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euint8 private _b;
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// solhint-disable-next-line var-name-mixedcase
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euint8 private _a_plus_b;
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// solhint-disable-next-line no-empty-blocks
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constructor() {}
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function setA(externalEuint8 inputA, bytes calldata inputProof) external {
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_a = FHE.fromExternal(inputA, inputProof);
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FHE.allowThis(_a);
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}
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function setB(externalEuint8 inputB, bytes calldata inputProof) external {
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_b = FHE.fromExternal(inputB, inputProof);
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FHE.allowThis(_b);
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}
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function computeAPlusB() external {
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// The sum `a + b` is computed by the contract itself (`address(this)`).
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// Since the contract has FHE permissions over both `a` and `b`,
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// it is authorized to perform the `FHE.add` operation on these values.
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// It does not matter if the contract caller (`msg.sender`) has FHE permission or not.
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_a_plus_b = FHE.add(_a, _b);
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// At this point the contract ifself (`address(this)`) has been granted ephemeral FHE permission
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// over `_a_plus_b`. This FHE permission will be revoked when the function exits.
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//
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// Now, to make sure `_a_plus_b` can be decrypted by the contract caller (`msg.sender`),
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// we need to grant permanent FHE permissions to both the contract ifself (`address(this)`)
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// and the contract caller (`msg.sender`)
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FHE.allowThis(_a_plus_b);
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FHE.allow(_a_plus_b, msg.sender);
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}
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function result() public view returns (euint8) {
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return _a_plus_b;
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}
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}
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