add initial elliptic curve points generation

package.json

@@ -22,6 +22,7 @@
     "@material-ui/icons": "^1.1.0",
     "bignumber.js": "^5.0.0",
     "classnames": "^2.2.6",
+    "elliptic": "^6.4.1",
     "eth-ens-namehash": "^2.0.8",
     "formik": "^0.11.11",
     "install": "^0.11.0",

test/enssubdomainregistry.js

@@ -166,12 +166,13 @@ contract('ENSSubdomainRegistry', function () {
     let subdomain = 'bob2';
     let usernameHash = namehash.hash(subdomain + '.' + domains.free.name);
     let contactCode = '0x04dbb31252d9bddb4e4d362c7b9c80cba74732280737af97971f42ccbdc716f3f3efb1db366880e52d09b1bfd59842e833f3004088892b7d14b9ce9e957cea9a82';
+    let points = utils.generateXY(contactCode);
     let result = await ENSSubdomainRegistry.methods.register(
       web3Utils.sha3(subdomain),
       domains.free.namehash,
       registrant,
-      utils.zeroBytes32,
+      points.x,
-      utils.zeroBytes32,
+      points.y,
       contactCode
     ).send({from: registrant});
 
@@ -182,8 +183,8 @@ contract('ENSSubdomainRegistry', function () {
     result = await PublicResolver.methods.text(usernameHash, "statusAccount").call()
     assert.equal(result, contactCode, "Resolved contact code not set");
     result = await PublicResolver.methods.pubkey(usernameHash).call()
-    assert.equal(result[0], utils.zeroBytes32, "Unexpected resolved pubkey[0]");
+    let pubKey = utils.keyFromXY(result[0], result[1]);
-    assert.equal(result[1], utils.zeroBytes32, "Unexpected resolved pubkey[1]");
+    assert.equal(pubKey, contactCode, "pubKey does not match contract code");
   });
 
 

utils/testUtils.js

@@ -1,3 +1,5 @@
+var EC = require('elliptic').ec;
+var ec = new EC('secp256k1');
 
 // This has been tested with the real Ethereum network and Testrpc.
 // Copied and edited from: https://gist.github.com/xavierlepretre/d5583222fde52ddfbc58b7cfa0d2d0a9
@@ -237,3 +239,19 @@ exports.increaseTime = async (amount) => {
       )
     });
 }
+
+exports.generateXY = pub => {
+  const stripped = pub.slice(2);
+  const key = ec.keyFromPublic(stripped, 'hex');
+  const pubPoint = key.getPublic();
+  const x = '0x' + pubPoint.getX().toString(16);
+  const y = '0x'+ pubPoint.getY().toString(16);
+  return { x, y };
+}
+
+exports.keyFromXY = (X, Y) => {
+  const x = Buffer.from(X.substring(2), 'hex');
+  const y = Buffer.from(Y.substring(2), 'hex');
+  const keys = ec.keyFromPublic({ x, y }, 'hex');
+  return `0x${keys.getPublic().encode('hex')}`;
+}