....

static/js/modules/interface/proofs.js

@@ -4,6 +4,7 @@
  * Only works on lists up to 255 elements.
  */
 function cryptoShuffle(l) {
+    let out = [];
     for (let i = l.length - 1; i > 0; i--) {
         let value = new Uint8Array([0]);
         crypto.getRandomValues(value);
@@ -11,12 +12,13 @@ function cryptoShuffle(l) {
             crypto.getRandomValues(value);
         }
 
-        let temp = l[i];
-        l[i] = l[value[0]];
-        l[value[0]] = temp;
+        let v = l.splice(value[0], 1);
+        out.push(v[0]);
     }
 
-    return l;
+    out.push(l[0]);
+
+    return out;
 }
 
 window.cryptoShuffle = cryptoShuffle;
@@ -25,14 +27,27 @@ function proveRegions(regions) {
     // Construct prover coins
     let coins = [];
 
-    let regionNames = Object.keys(regions.keys());
-    for (let x = 0; x < 20; x++) {
-        let psi = cryptoShuffle(regionNames).join("");
+    let regionNames = Object.keys(regions);
+    for (let x = 0; x < 40; x++) {
+        let psi = cryptoShuffle(structuredClone(regionNames)).join("");
+        let newRegions = structuredClone(regions);
+        // rearrange keys
+        for (let index = 0; index < regionNames.length; index++) {
+            let c = regions[psi[index]].clone();
+            // re-blind
+            c.update(c.pubKey.encrypt(0n));
+            newRegions[regionNames[index]] = c.toString();
+        }
+        coins.push(newRegions);
     }
 
     // Construct verifier coins
     let hasher = new jsSHA("SHA3-256", "TEXT");
-    hasher.update(JSON.stringify(regions));
+    hasher.update(JSON.stringify(coins));
+
+    console.log(hasher.getHash("UINT8ARRAY"));
 
     // Construct prover proofs
 }
+
+window.proveRegions = proveRegions;