└── BLSOpen.sol


/BLSOpen.sol:
--------------------------------------------------------------------------------
 1 | // SPDX-License-Identifier: MIT
 2 | pragma solidity >= 0.6.12;
 3 | 
 4 | import { BLS } from "./hubble-contracts/contracts/libs/BLS.sol";
 5 | 
 6 | library BLSOpen {
 7 |     function verifySingle(
 8 |         uint256[2] memory signature,
 9 |         uint256[4] memory pubkey,
10 |         uint256[2] memory message
11 |     ) external view returns (bool) {
12 |         uint256[4][] memory pubkeys = new uint256[4][](1);
13 |         uint256[2][] memory messages = new uint256[2][](1);
14 |         pubkeys[0] = pubkey;
15 |         messages[0] = message;
16 | 
17 |         (bool verified, bool callSuccess) =  BLS.verifyMultiple(
18 |             signature,
19 |             pubkeys,
20 |             messages
21 |         );
22 |         return callSuccess && verified;
23 | 
24 |         // // NB: (result, success) opposite of `call` convention (success, result).
25 |         // (bool verified, bool callSuccess) = BLS.verifySingle(
26 |         //     signature,
27 |         //     pubkey,
28 |         //     message
29 |         // );
30 |         // return callSuccess && verified;
31 |     }
32 | 
33 |     function verifyMultiple(
34 |         uint256[2] memory signature,
35 |         uint256[4][] memory pubkeys,
36 |         uint256[2][] memory messages
37 |     ) external view returns (bool) {
38 |         (bool verified, bool callSuccess) =  BLS.verifyMultiple(
39 |             signature,
40 |             pubkeys,
41 |             messages
42 |         );
43 |         return callSuccess && verified;
44 |     }
45 | 
46 |     function hashToPoint(
47 |         bytes32 domain,
48 |         bytes memory message
49 |     ) external view returns (uint256[2] memory) {
50 |         return BLS.hashToPoint(
51 |             domain,
52 |             message
53 |         );
54 |     }
55 | 
56 |     function isZeroBLSKey(uint256[4] memory blsKey) public pure returns (bool) {
57 |         bool isZero = true;
58 |         for (uint256 i=0; isZero && i<4; i++) {
59 |             isZero = (blsKey[i] == 0);
60 |         }
61 |         return isZero;
62 |     }
63 | 
64 | }
65 | 


--------------------------------------------------------------------------------