Sample Signature Verification
Below are example calls to the EVM Verification Contract.
GOERLI_PROVIDER = <your_goerli_provider>
CONTRACT_ADDRESS = <deployed_contract_address>
ORACLE_PUBKEY = "0xcBCeF093430bBc560f994e5A14DB0dd727D03411"
ASSET_PAIR = "ETHUSD"
TIMESTAMP = 1663309101
PRICE = 1472980000000000000000
R = "0x2ec2a2da5a68aa2e5b6eb30723d8cf6d3f97f115dac50c5178360ee0ebaeba82"
S = "0x201726d52086a142834a65ebeedc3843724f527870616ae21e952958cc7ad296"
V = 0x1b
abi = [
{
"inputs": [
{
"internalType": "address",
"name": "oracle_pubkey",
"type": "address"
},
{
"internalType": "string",
"name": "asset_pair_id",
"type": "string"
},
{
"internalType": "uint256",
"name": "timestamp",
"type": "uint256"
},
{
"internalType": "uint256",
"name": "price",
"type": "uint256"
},
{
"internalType": "bytes32",
"name": "r",
"type": "bytes32"
},
{
"internalType": "bytes32",
"name": "s",
"type": "bytes32"
},
{
"internalType": "uint8",
"name": "v",
"type": "uint8"
}
],
"name": "verifySignature",
"outputs": [
{
"internalType": "bool",
"name": "",
"type": "bool"
}
],
"stateMutability": "pure",
"type": "function"
}
]
w3 = Web3(Web3.HTTPProvider(GOERLI_PROVIDER))
contract = w3.eth.contract(CONTRACT_ADDRESS, abi=abi)
response = contract.functions.verifySignature(ORACLE_PUBKEY, ASSET_PAIR, TIMESTAMP, PRICE, R, S, V).call()
print(response)
// SPDX-License-Identifier: UNLICENSED
pragma solidity >=0.5.0 <0.9.0;
// interface to another deployed contract
contract Verify {
function verifySignature(
address oracle_pubkey,
string memory asset_pair_id,
uint256 timestamp,
uint256 price,
bytes32 r,
bytes32 s,
uint8 v
) public pure returns (bool) {}
}
contract ClientContract {
function callVerifySignature(address a) public pure returns (bool) {
Verify verify = Verify(a);
bool result = verify.verifySignature(
0xcBCeF093430bBc560f994e5A14DB0dd727D03411,
"ETHUSD",
1663309101,
1472980000000000000000,
0x2ec2a2da5a68aa2e5b6eb30723d8cf6d3f97f115dac50c5178360ee0ebaeba82,
0x201726d52086a142834a65ebeedc3843724f527870616ae21e952958cc7ad296,
0x1b
);
return result;
}
}
Last modified 4mo ago