NoBey/openzeppelin-contracts
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added function helper, few changes on ECRecover lib

Browse Source
This commit is contained in:
AugustoL
2017-07-17 22:47:00 -03:00
committed by Francisco Giordano
parent f8c0fab5d8
commit 4f44427966
4 changed files with 22 additions and 888 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
test/ECRecovery.js
View File

@ -1,5 +1,6 @@
var ECRecovery = artifacts.require("../contracts/ECRecovery.sol");
var utils = require('ethereumjs-util');
var hashMessage = require('./helpers/hashMessage.js');
contract('ECRecovery', function(accounts) {
@ -29,42 +30,26 @@ contract('ECRecovery', function(accounts) {
// Create the signature using account[0]
const signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
// Testrpc add a prefix to the signed message, we generate the hash of
// 'OpenZeppelin' string repeating testrpc steps
const message = new Buffer(web3.sha3('OpenZeppelin').substring(2), 'hex');
const prefix = utils.toBuffer('\u0019Ethereum Signed Message:\n' + message.length.toString());
const prefixedHash = utils.bufferToHex( utils.sha3(Buffer.concat([prefix, message])) );
// Recover the signer address form the generated message and signature.
assert.equal(web3.eth.accounts[0], await ecrecovery.recover(prefixedHash, signature));
assert.equal(web3.eth.accounts[0], await ecrecovery.recover(hashMessage('OpenZeppelin'), signature));
});
it("recover using web3.eth.sign() should return wrong signer", async function() {
// Create the signature using account[0]
const signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
// Testrpc add a prefix to the signed message, we generate the hash of
// 'Test' string repeating testrpc steps
const message = new Buffer(web3.sha3('Test').substring(2), 'hex');
const prefix = utils.toBuffer('\u0019Ethereum Signed Message:\n' + message.length.toString());
const prefixedHash = utils.bufferToHex( utils.sha3(Buffer.concat([prefix, message])) );
// Recover the signer address form the generated message and wrong signature.
assert.notEqual(web3.eth.accounts[0], await ecrecovery.recover(prefixedHash, signature));
assert.notEqual(web3.eth.accounts[0], await ecrecovery.recover(hashMessage('Test'), signature));
});
it("recover should fail when a wrong hash is sent", async function() {
// Create the signature using account[0]
let signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
// Testrpc add a prefix to the signed message, we generate the hash of
// 'OpenZeppelin' string repeating testrpc steps
let message = new Buffer(web3.sha3('OpenZeppelin'), 'hex');
let prefix = utils.toBuffer('\u0019Ethereum Signed Message:\n' + message.length.toString());
let prefixedHash = utils.sha3(Buffer.concat([prefix, message]));
// Recover the signer address form the generated message and wrong signature.
assert.equal('0x0000000000000000000000000000000000000000', await ecrecovery.recover(prefixedHash, signature));
assert.equal('0x0000000000000000000000000000000000000000',
await ecrecovery.recover(hashMessage('OpenZeppelin').substring(2), signature)
);
});
});