Fix some stuff and sort of implement proving

static/js/modules/crypto/paillier.js

@@ -86,7 +86,7 @@ export class ReadOnlyCyphertext {
         this.cyphertext = (this.cyphertext * c.cyphertext) % this.pubKey.n ** 2n;
     }
 
-    prove(plainText, a) {
+    prove(tag, plainText, a) {
         return new ProofSessionVerifier(this, plainText, a);
     }
 }

static/js/modules/interface/main.js

@@ -157,6 +157,17 @@ document.addEventListener("ACT", async (ev) => {
     }
 });
 
+// todo has to filter by player
+document.addEventListener("PROOF", async (ev) => {
+    const data = ev.detail;
+    if (data.stage === "CONJECTURE") {
+        // find the relevant entity
+        let region = Region.getRegion(data.region);
+
+        region.prove(data.plainText, data.noise());
+    }
+});
+
 document.addEventListener("endTurn", () => {
     if (game.isPregame() && game.allReinforcementsPlaced()) {
         game.incrementState();

static/js/modules/interface/map.js

@@ -1,3 +1,5 @@
+import { Packet } from "./packet.js";
+
 const REGIONS = {};
 
 class Continent {
@@ -22,6 +24,71 @@ class Strength {
 
         this.assumedStrength = null;
     }
+
+    prove(region) {
+        if (this.cipherText.readOnly) {
+            return;
+        }
+
+        const controller = new AbortController();
+        let proofSessionProver = this.cipherText.prove();
+
+        document.addEventListener(
+            "PROOF",
+            (ev) => {
+                const data = ev.detail;
+
+                if (data.region === region && data.stage === "CHALLENGE") {
+                    let z = proofSessionProver.prove(data.challenge);
+
+                    socket.emit("message", Packet.createProof(region, z));
+                    controller.abort();
+                }
+            },
+            { signal: controller.signal }
+        );
+
+        socket.emit(
+            "message",
+            Packet.createProofConjecture(
+                region,
+                this.cipherText.plainText,
+                proofSessionProver.a
+            )
+        );
+    }
+
+    verify(region, plainText, a) {
+        if (!this.cipherText.readOnly) {
+            return;
+        }
+
+        const controller = new AbortController();
+        let proofSessionVerifier = this.cipherText.prove(plainText, a);
+
+        document.addEventListener(
+            "PROOF",
+            (ev) => {
+                const data = ev.detail;
+
+                if (data.region === region && data.stage === "PROOF") {
+                    if (proofSessionVerifier.verify(data.z)) {
+                        console.log("verified");
+                        this.assumedStrength = plainText;
+                        controller.abort();
+                    } else {
+                        console.warn("Failed to verify ciphertext!");
+                    }
+                }
+            },
+            { signal: controller.signal }
+        );
+
+        socket.emit(
+            "message",
+            Packet.createProofChallenge(region, proofSessionVerifier.challenge)
+        );
+    }
 }
 
 export class Region {
@@ -72,13 +139,19 @@ export class Region {
         if (this.owner === null) {
             return "";
         } else if (!this.strength.cipherText.readOnly) {
-            return this.strength.cipherText.plainText;
+            return this.strength.cipherText.plainText.toString();
         } else if (this.strength.assumedStrength !== null) {
-            return `${this.strength.assumedStrength}`;
+            return this.strength.assumedStrength.toString();
         } else {
             return "?";
         }
     }
+
+    prove() {}
+
+    verify(plainText, a) {
+        this.strength.verify(this.name, plainText, a);
+    }
 }
 
 const EAST = new Continent("East");

static/js/modules/interface/packet.js

@@ -1,4 +1,4 @@
-import { ID, game } from "./main.js";
+import { ID } from "./main.js";
 
 export class Packet {
     static _createBase(name) {
@@ -85,10 +85,10 @@ export class Packet {
         });
     }
 
-    static createReinforce(regionCyphertexts) {
+    static createReinforce(regionCipherTexts) {
         return this._sign({
             ...this._createBase("ACT"),
-            regions: regionCyphertexts,
+            regions: regionCipherTexts,
         });
     }
 
@@ -116,4 +116,32 @@ export class Packet {
             action: "END",
         });
     }
+
+    static createProofConjecture(region, plainText, a) {
+        return this._sign({
+            ...this._createBase("PROOF"),
+            stage: "CONJECTURE",
+            plainText: plainText,
+            a: a,
+            region: region,
+        });
+    }
+
+    static createProofChallenge(region, challenge) {
+        return this._sign({
+            ...this._createBase("PROOF"),
+            stage: "CHALLENGE",
+            challenge: challenge,
+            region: region,
+        });
+    }
+
+    static createProof(region, z) {
+        return this._sign({
+            ...this._createBase("PROOF"),
+            stage: "PROOF",
+            z: z,
+            region: region,
+        });
+    }
 }

static/js/modules/interface/player.js

@@ -15,7 +15,7 @@ const PHASE_FORTIFY = 3;
 let totalDice = 0;
 
 export class Player {
-    constructor(id, local, rsa_key, paillier_key) {
+    constructor(id, local, rsaKey, paillierKey) {
         // Game state
         this.totalStrength = 0;
         this.ready = false;
@@ -23,8 +23,8 @@ export class Player {
         // Protocol state
         this.timeout = null;
         this.id = id;
-        this.rsaPubKey = RsaPubKey.fromJSON(rsa_key);
-        this.paillierPubKey = PaillierPubKey.fromJSON(paillier_key);
+        this.rsaPubKey = RsaPubKey.fromJSON(rsaKey);
+        this.paillierPubKey = PaillierPubKey.fromJSON(paillierKey);
         this.lastPacket = 0;
 
         // Data which is reset every turn
@@ -88,7 +88,7 @@ export class Player {
         if (region.owner === null) {
             region.claim(
                 this,
-                new ReadOnlyCyphertext(this.paillierPubKey, data.cipherText)
+                new ReadOnlyCyphertext(this.paillierPubKey, BigInt(data.cipherText))
             );
 
             this.totalStrength += 1;
@@ -111,7 +111,12 @@ export class Player {
             let region = Region.getRegion(regionName);
 
             if (region.owner === this) {
-                region.reinforce(BigInt(data.regions[regionName]));
+                region.reinforce(
+                    new ReadOnlyCyphertext(
+                        this.paillierPubKey,
+                        BigInt(data.regions[regionName])
+                    )
+                );
             }
         }