feat: zkey hash in marketplace config (#81)

contracts/Configuration.sol

@@ -23,4 +23,5 @@ struct ProofConfig {
   uint256 period; // proofs requirements are calculated per period (in seconds)
   uint256 timeout; // mark proofs as missing before the timeout (in seconds)
   uint8 downtime; // ignore this much recent blocks for proof requirements
+  string zkeyHash; // hash of the zkey file which is linked to the verifier
 }

contracts/FuzzMarketplace.sol

@@ -8,7 +8,10 @@ import "./TestVerifier.sol";
 contract FuzzMarketplace is Marketplace {
   constructor()
     Marketplace(
-      MarketplaceConfig(CollateralConfig(10, 5, 3, 10), ProofConfig(10, 5, 64)),
+      MarketplaceConfig(
+        CollateralConfig(10, 5, 3, 10),
+        ProofConfig(10, 5, 64, "")
+      ),
       new TestToken(),
       new TestVerifier()
     )

deploy/marketplace.js

@@ -1,6 +1,8 @@
+const { loadZkeyHash } = require ("../verifier/verifier.js")
+
 const MARKETPLACE_HARDCODED_ADDRESS = "0x59b670e9fA9D0A427751Af201D676719a970857b"
 
-async function deployMarketplace({ deployments, getNamedAccounts }) {
+async function deployMarketplace({ deployments, getNamedAccounts, network }) {
   const token = await deployments.get("TestToken")
   const verifier = await deployments.get("Groth16Verifier")
   const configuration = {
@@ -14,6 +16,7 @@ async function deployMarketplace({ deployments, getNamedAccounts }) {
       period: 10,
       timeout: 5,
       downtime: 64,
+      zkeyHash: loadZkeyHash(network.name),
     },
   }
   const args = [configuration, token.address, verifier.address]

test/Proofs.test.js

@@ -33,7 +33,7 @@ describe("Proofs", function () {
     await deployments.fixture(["Groth16Verifier"])
     const verifier = await deployments.get("Groth16Verifier")
     proofs = await Proofs.deploy(
-      { period, timeout, downtime },
+      { period, timeout, downtime, zkeyHash: "" },
       verifier.address
     )
   })

test/examples.js

@@ -14,6 +14,7 @@ const exampleConfiguration = () => ({
     period: 10,
     timeout: 5,
     downtime: 64,
+    zkeyHash: "",
   },
 })
 

verifier/networks/hardhat/example-proof/proof.json

@@ -1,17 +1,17 @@
 {
  "pi_a": [
-  "5354152410986528740889949811485085083352383496724906496620004560773766258873",
-  "18134846030714314375408574013835366655850239581285468242834655581868166406486",
+  "7660723414354960115525441084999694570984078535773668898653309300593084455533",
+  "13530035710725348149248647938083875391713661082920395232005195032418705681044",
   "1"
  ],
  "pi_b": [
   [
-   "4789242673778392422990537486305482696481357883414443488947138222420834201517",
-   "2027024107056245515978112401631176046626549081189495220144757031281248965782"
+   "2901049701023582640714756481602042737261909502555520071221132529600598809861",
+   "16912924802763251099243304625254406414459294932221399417825327530544648619341"
   ],
   [
-   "14074051812573855135840075486089320372866984532507488654928193739831517782936",
-   "7485586556662798915982244873929621022563116002979775814431258294905458788251"
+   "1466763974310418266645354657059454821840794309805321553635263869263906930810",
+   "7919549687544999068783867201010060068898464272548283100322334851170181843674"
   ],
   [
    "1",
@@ -19,8 +19,8 @@
   ]
  ],
  "pi_c": [
-  "13387824467635444633441399613298811843935004737405384070996599011859892267608",
-  "18364006371113837324322071862501578716151167725869146988611466294121991858941",
+  "16466626257875743363595172691363309940341494894360337991073652025213400816020",
+  "726868384379000975195472980386786614662718074766231997317916406216503344910",
   "1"
  ],
  "protocol": "groth16",

verifier/networks/hardhat/example-proof/public.json

@@ -1,5 +1,5 @@
 [
- "7538754537",
+ "7613683355",
  "16074246370508166450132968585287196391860062495017081813239200574579640171677",
  "3"
 ]

verifier/networks/hardhat/proof_main_verification_key.json

@@ -37,12 +37,12 @@
  ],
  "vk_delta_2": [
   [
-   "9526465944650138768726332063321262597514193803543146241262920033512923206833",
-   "16947967852917776612242666765339055140004530219040719566241973405926209896589"
+   "7266368133833883232696069721567436218373292960862868097298822586114813920314",
+   "20179748680988515246787231619783022280905346903974148635767068251171792499335"
   ],
   [
-   "19350668523204772149977938696677933779621485674406066708436704188235339847628",
-   "8391255886665123549932056926338579244742743577262957977406729945277596579696"
+   "11281139796322341653654563690864590481498751340552223660930514795611905053341",
+   "18865664978433701919673993490064453553613307046760943003771776295179590961997"
   ],
   [
    "1",

verifier/networks/hardhat/zkey_hash.json

@@ -0,0 +1 @@
+"74fe889808fa3024e008ca603841e2afeda36044b70a06173e38ab82e632cea0"

verifier/verifier.js

@@ -3,8 +3,9 @@ const fs = require("fs")
 const BASE_PATH = __dirname + "/networks"
 const PROOF_FILE_NAME = "example-proof/proof.json"
 const PUBLIC_INPUT_FILE_NAME = "example-proof/public.json"
+const ZKEY_HASH_FILE_NAME = "zkey_hash.json"
 const VERIFICATION_KEY_FILE_NAME =
-  "verification-key/proof_main_verification_key.json"
+  "proof_main_verification_key.json"
 
 function G1ToStruct(point) {
   return {
@@ -36,6 +37,12 @@ function loadPublicInput(name) {
   return input
 }
 
+function loadZkeyHash(name) {
+  const path = `${BASE_PATH}/${name}/${ZKEY_HASH_FILE_NAME}`
+  const input = JSON.parse(fs.readFileSync(path))
+  return input
+}
+
 function loadVerificationKey(name) {
   const path = `${BASE_PATH}/${name}/${VERIFICATION_KEY_FILE_NAME}`
   const key = JSON.parse(fs.readFileSync(path))
@@ -48,4 +55,4 @@ function loadVerificationKey(name) {
   }
 }
 
-module.exports = { loadProof, loadPublicInput, loadVerificationKey }
+module.exports = { loadProof, loadPublicInput, loadVerificationKey, loadZkeyHash }