Signed proof of election codes

lib/av_client.ts

@@ -198,7 +198,7 @@ export class AVClient implements IAVClient {
   }
 
   generateProofOfElectionCodes(electionCodes : Array<string>) {
-    this.proofOfElectionCodes = new ProofOfElectionCodes(electionCodes);
+    this.proofOfElectionCodes = new ProofOfElectionCodes(electionCodes, this.keyPair.publicKey);
   }
 
   setIdentityToken(token: string) {

lib/av_client/crypto/proof_of_election_codes.ts

@@ -1,7 +1,7 @@
 import {
   electionCodeToPrivateKey,
   addBigNums,
-  generateDiscreteLogarithmProof,
+  generateSchnorrSignature,
   generateKeyPair,
 } from "../aion_crypto.js";
 import {KeyPair} from "../types";
@@ -10,11 +10,11 @@ export class ProofOfElectionCodes {
   readonly proof: string;
   readonly mainKeyPair: KeyPair;
 
-  constructor(electionCodes : Array<string>) {
+  constructor(electionCodes : Array<string>, sessionPublicKey: string) {
     const privateKey = <string>electionCodes
       .map(electionCode => electionCodeToPrivateKey(electionCode))
       .reduce(addBigNums);
-    this.proof = generateDiscreteLogarithmProof(privateKey);
+    this.proof = generateSchnorrSignature(sessionPublicKey, privateKey);
     const { public_key: publicKey } = generateKeyPair(privateKey);
     this.mainKeyPair = { privateKey, publicKey }
   }

package.json

@@ -1,5 +1,5 @@
 {
-  "version": "4.3.3",
+  "version": "5.0.0-alpha.2",
   "name": "@aion-dk/js-client",
   "license": "MIT",
   "description": "Assembly Voting JS client",

test/crypto/proof_of_election_code.test.ts

@@ -1,14 +1,15 @@
 import { expect } from "chai";
 import { ProofOfElectionCodes } from "../../lib/av_client/crypto/proof_of_election_codes";
-import { DiscreteLogarithmProof, Curve } from "../../lib/av_client/aion_crypto.js"
-import { pointFromHex } from "../../lib/av_client/crypto/util";
+import { SchnorrSignature, Curve } from "../../lib/av_client/aion_crypto.js"
+import { pointFromHex, pointToHex } from "../../lib/av_client/crypto/util";
 
 describe("Proof of election codes", () => {
 
   it("converts a single election code into a keyPair", () => {
     const electionCode = 's3cr3t5';
+    const sessionPublicKey = pointToHex(Curve.G);
 
-    const proof = new ProofOfElectionCodes([electionCode]);
+    const proof = new ProofOfElectionCodes([electionCode], sessionPublicKey);
 
     expect(proof.mainKeyPair).to.eql({
       privateKey: "631a1838f1e82b7b39f2b620a790de69ca8feb0cfd4ba984350a5fe3a2fda299",
@@ -18,24 +19,26 @@ describe("Proof of election codes", () => {
 
   it("converts multiple election codes into a keyPair", () => {
     const electionCodes = ['s3cr3t5','t0','k33p'];
+    const sessionPublicKey = pointToHex(Curve.G);
 
-    const proof = new ProofOfElectionCodes(electionCodes);
+    const proof = new ProofOfElectionCodes(electionCodes, sessionPublicKey);
 
     expect(proof.mainKeyPair).to.eql({
       privateKey: "e71d8edd52ff20ff8a741a9ae0f651193e183eafd639ebde02c847b2a35f9a8d",
       publicKey: "020936bd7dacd0bfc974c717877fff2b0c4257a3ef0ea545b6acca9fa3e7857463"
     });
   })
 
-  it("generates a discrete logarithm proof", () => {
+  it("generates a schnorr signature", () => {
     const electionCodes = ['s3cr3t5','t0','k33p'];
+    const sessionPublicKey = pointToHex(Curve.G);
 
-    const proof = new ProofOfElectionCodes(electionCodes);
-    const discreteLogarithmProof = DiscreteLogarithmProof.fromString(proof.proof);
+    const proof = new ProofOfElectionCodes(electionCodes, sessionPublicKey);
+    const signature = SchnorrSignature.fromString(proof.proof);
 
     expect(proof.proof).to.exist;
     const publicKey = pointFromHex(proof.mainKeyPair.publicKey).toEccPoint();
-    expect(discreteLogarithmProof.verifyWithoutChallenge(Curve.G, publicKey)).to.be.true;
+    expect(signature.verify(publicKey, sessionPublicKey)).to.be.true;
   })
 })