*Update dist

dist/DHTDataBase.d.ts

@@ -1,14 +1,14 @@
 /// <reference types="node" />
 /// <reference types="node" />
 import EventEmitter from "events";
-export default class DHTOnlineBase extends EventEmitter {
+export default class DHTDataBase extends EventEmitter {
+    protected swarm: any;
     private id;
     private bootstrapped;
     private graph;
     private connectedTo;
-    private encoding;
+    constructor(id: Buffer, { swarm }?: {
-    constructor(id: Buffer, { encoding }?: {
+        swarm?: any;
-        encoding?: string | undefined;
     });
     private _data;
     get data(): {};
@@ -16,7 +16,11 @@ export default class DHTOnlineBase extends EventEmitter {
     private _online;
     get online(): string[];
     broadcast(data: any, ttl?: number): void;
+    getPeerRaw(id: Buffer | string): any;
+    getPeerField(id: Buffer | string, field: string): any;
     getPeerData(id: Buffer | string): any;
+    getPeerTimestamp(id: Buffer | string): any;
+    getPeerSignature(id: Buffer | string): any;
     protected onAddPeer(id: Buffer): void;
     protected onRemovePeer(id: Buffer): void;
     protected onGetBroadcast(message: Buffer, id: Buffer): void;
@@ -31,4 +35,4 @@ export default class DHTOnlineBase extends EventEmitter {
     private _recalculate;
     private _maybeHexify;
 }
-//# sourceMappingURL=dhtOnlineBase.d.ts.map
+//# sourceMappingURL=DHTDataBase.d.ts.map

dist/DHTDataBase.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"DHTDataBase.d.ts","sourceRoot":"","sources":["../src/DHTDataBase.ts"],"names":[],"mappings":";;AAAA,OAAO,YAAY,MAAM,QAAQ,CAAC;AAiBlC,MAAM,CAAC,OAAO,OAAO,WAAY,SAAQ,YAAY;IACnD,SAAS,CAAC,KAAK,EAAE,GAAG,CAAC;IACrB,OAAO,CAAC,EAAE,CAAS;IACnB,OAAO,CAAC,YAAY,CAAU;IAC9B,OAAO,CAAC,KAAK,CAAM;IACnB,OAAO,CAAC,WAAW,CAAW;gBAElB,EAAE,EAAE,MAAM,EAAE,EAAE,KAAK,EAAE,GAAE;QAAE,KAAK,CAAC,EAAE,GAAG,CAAA;KAAO;IAavD,OAAO,CAAC,KAAK,CAAK;IAElB,IAAI,IAAI,IAAI,EAAE,CAEb;IAED,IAAI,IAAI,CAAC,KAAK,EAAE,EAAE,EAcjB;IAED,OAAO,CAAC,OAAO,CAAW;IAE1B,IAAI,MAAM,IAAI,MAAM,EAAE,CAErB;IAED,SAAS,CAAC,IAAI,EAAE,GAAG,EAAE,GAAG,CAAC,EAAE,MAAM;IAIjC,UAAU,CAAC,EAAE,EAAE,MAAM,GAAG,MAAM;IAI9B,YAAY,CAAC,EAAE,EAAE,MAAM,GAAG,MAAM,EAAE,KAAK,EAAE,MAAM;IAI/C,WAAW,CAAC,EAAE,EAAE,MAAM,GAAG,MAAM;IAG/B,gBAAgB,CAAC,EAAE,EAAE,MAAM,GAAG,MAAM;IAIpC,gBAAgB,CAAC,EAAE,EAAE,MAAM,GAAG,MAAM;IAIpC,SAAS,CAAC,SAAS,CAAC,EAAE,EAAE,MAAM;IAqC9B,SAAS,CAAC,YAAY,CAAC,EAAE,EAAE,MAAM;IAiBjC,SAAS,CAAC,cAAc,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE,EAAE,MAAM;IAqDpD,OAAO,CAAC,cAAc;IAmBtB,OAAO,CAAC,YAAY;IAIpB,OAAO,CAAC,QAAQ;IAahB,OAAO,CAAC,WAAW;IAOnB,OAAO,CAAC,kBAAkB;IAY1B,OAAO,CAAC,qBAAqB;IAa7B,OAAO,CAAC,cAAc;IAuCtB,OAAO,CAAC,iBAAiB;IAgBzB,OAAO,CAAC,YAAY;IAwBpB,OAAO,CAAC,YAAY;CAOrB"}

dist/DHTDataBase.js

@@ -6,16 +6,20 @@ Object.defineProperty(exports, "__esModule", { value: true });
 const events_1 = __importDefault(require("events"));
 // @ts-ignore
 const jsnetworkx_1 = require("jsnetworkx");
-const codecs_1 = __importDefault(require("codecs"));
+// @ts-ignore
+const ordered_json_1 = __importDefault(require("ordered-json"));
+// @ts-ignore
+const hypercore_crypto_1 = __importDefault(require("hypercore-crypto"));
+const b4a_1 = __importDefault(require("b4a"));
 const messages_js_1 = require("./messages.js");
-const DEFAULT_ENCODING = "json";
+const debug_1 = __importDefault(require("debug"));
-class DHTOnlineBase extends events_1.default {
+class DHTDataBase extends events_1.default {
+    swarm;
     id;
     bootstrapped;
     graph;
     connectedTo;
-    encoding;
+    constructor(id, { swarm } = {}) {
-    constructor(id, { encoding = DEFAULT_ENCODING } = {}) {
         super();
         if (!id)
             throw new TypeError("Must provide id for self");
@@ -24,8 +28,8 @@ class DHTOnlineBase extends events_1.default {
         this.graph = new jsnetworkx_1.DiGraph();
         this.connectedTo = new Set();
         this._data = {};
-        this.encoding = (0, codecs_1.default)(encoding || DEFAULT_ENCODING);
         this._online = [this._maybeHexify(this.id)];
+        this.swarm = swarm;
     }
     _data;
     get data() {
@@ -33,7 +37,10 @@ class DHTOnlineBase extends events_1.default {
     }
     set data(value) {
         this._data = value;
-        this._setPeer(this.id, value);
+        const timestamp = BigInt(Date.now());
+        const rawData = ordered_json_1.default.stringify(value);
+        const signature = hypercore_crypto_1.default.sign(b4a_1.default.from(`${timestamp}${rawData}`), this.swarm.keyPair.secretKey);
+        this._setPeer(this.id, value, timestamp, signature);
         this._broadcastData();
     }
     _online;
@@ -43,9 +50,21 @@ class DHTOnlineBase extends events_1.default {
     broadcast(data, ttl) {
         throw new TypeError("Broadcast has not been implemented");
     }
-    getPeerData(id) {
+    getPeerRaw(id) {
         return this.graph.node.get(this._maybeHexify(id));
     }
+    getPeerField(id, field) {
+        return this.getPeerRaw(id)?.[field];
+    }
+    getPeerData(id) {
+        return this.getPeerField(id, "data");
+    }
+    getPeerTimestamp(id) {
+        return this.getPeerField(id, "timestamp");
+    }
+    getPeerSignature(id) {
+        return this.getPeerField(id, "signature");
+    }
     onAddPeer(id) {
         const stringId = id.toString("hex");
         if (this.connectedTo.has(stringId)) {
@@ -91,11 +110,16 @@ class DHTOnlineBase extends events_1.default {
             throw new Error("Missing Type In Message");
         }
         if (type === messages_js_1.Type.STATE) {
-            const { data: rawData } = decoded;
+            const { data: rawData, timestamp, signature } = decoded;
-            const data = this.encoding.decode(rawData);
+            if (signature &&
-            this._setPeer(id, data);
+                hypercore_crypto_1.default.verify(b4a_1.default.from(`${timestamp}${rawData}`), signature, id)) {
-            this.emit("peer-data", data, id);
+                const data = rawData ? ordered_json_1.default.parse(rawData) : null;
-            this._recalculate();
+                this._setPeer(id, data, timestamp, signature);
+                this.emit("peer-data", data, id);
+                this._recalculate();
+                return;
+            }
+            (0, debug_1.default)(`Invalid signature received for peer ${id}`);
         }
         else if (type === messages_js_1.Type.CONNECTED) {
             const { id: toId } = decoded;
@@ -126,17 +150,24 @@ class DHTOnlineBase extends events_1.default {
         if (!Object.keys(rawData).length) {
             return;
         }
-        const data = this.encoding.encode(rawData);
+        const data = ordered_json_1.default.stringify(rawData);
+        const { timestamp, signature } = this.getPeerRaw(this.id);
         this.broadcast(messages_js_1.Message.toBinary(messages_js_1.Message.create({
             type: messages_js_1.Type.STATE,
-            data,
+            data: b4a_1.default.from(data),
+            signature,
+            timestamp,
         })));
     }
     _hasSeenPeer(id) {
         return this.graph.hasNode(this._maybeHexify(id));
     }
-    _setPeer(id, data) {
+    _setPeer(id, data, timestamp, signature) {
-        this.graph.addNode(this._maybeHexify(id), data);
+        this.graph.addNode(this._maybeHexify(id), {
+            timestamp,
+            signature,
+            data,
+        });
     }
     _ensurePeer(id) {
         id = this._maybeHexify(id);
@@ -165,19 +196,26 @@ class DHTOnlineBase extends events_1.default {
             return;
         }
         for (const id in bootstrap) {
-            const { data, connectedTo } = bootstrap[id];
+            const { data, connectedTo, signature, timestamp } = bootstrap[id];
-            const parsedData = data ? this.encoding.decode(data) : null;
+            if (id === this.id.toString("hex")) {
-            let peerData = parsedData || {};
-            if (id === this.id.toString("hex"))
                 continue;
-            // If we're already tracking them
-            if (this._hasSeenPeer(id)) {
-                // See what data we already have for them
-                // Add their existing data to what we got from the bootstrap
-                const existingPeerData = this.getPeerData(id);
-                peerData = { ...existingPeerData, ...peerData };
             }
-            this._setPeer(id, peerData);
+            if (signature &&
+                hypercore_crypto_1.default.verify(b4a_1.default.from(`${timestamp}${data}`), signature, b4a_1.default.from(id))) {
+                const parsedData = data ? ordered_json_1.default.parse(data) : null;
+                let peerData = parsedData || {};
+                // If we're already tracking them
+                if (this._hasSeenPeer(id)) {
+                    // See what data we already have for them
+                    // Add their existing data to what we got from the bootstrap
+                    const existingPeerData = this.getPeerData(id);
+                    peerData = { ...existingPeerData, ...peerData };
+                    this._setPeer(id, peerData, timestamp, signature);
+                }
+            }
+            else {
+                (0, debug_1.default)(`Invalid signature received for peer ${id}`);
+            }
             for (const connection of connectedTo) {
                 this._addPeerConnection(id, Buffer.from(connection));
             }
@@ -191,8 +229,9 @@ class DHTOnlineBase extends events_1.default {
             const connectedTo = this.graph
                 .neighbors(id)
                 .map((id) => Buffer.from(id, "hex"));
-            const data = rawData ? this.encoding.encode(rawData) : null;
+            const data = rawData ? ordered_json_1.default.stringify(rawData?.data) : null;
-            state[id] = { data, connectedTo };
+            const { timestamp = undefined, signature = undefined } = rawData;
+            state[id] = { data: b4a_1.default.from(data), connectedTo, timestamp, signature };
         }
         return state;
     }
@@ -217,10 +256,10 @@ class DHTOnlineBase extends events_1.default {
         this.emit("online", online);
     }
     _maybeHexify(data) {
-        if (Buffer.isBuffer(data)) {
+        if (b4a_1.default.isBuffer(data)) {
             return data.toString("hex");
         }
         return data;
     }
 }
-exports.default = DHTOnlineBase;
+exports.default = DHTDataBase;

dist/dhtOnlineBase.d.ts.map

@@ -1 +0,0 @@
-{"version":3,"file":"dhtOnlineBase.d.ts","sourceRoot":"","sources":["../src/dhtOnlineBase.ts"],"names":[],"mappings":";;AAAA,OAAO,YAAY,MAAM,QAAQ,CAAC;AAYlC,MAAM,CAAC,OAAO,OAAO,aAAc,SAAQ,YAAY;IACrD,OAAO,CAAC,EAAE,CAAS;IACnB,OAAO,CAAC,YAAY,CAAU;IAC9B,OAAO,CAAC,KAAK,CAAM;IACnB,OAAO,CAAC,WAAW,CAAW;IAC9B,OAAO,CAAC,QAAQ,CAAoB;gBAExB,EAAE,EAAE,MAAM,EAAE,EAAE,QAA2B,EAAE;;KAAK;IAa5D,OAAO,CAAC,KAAK,CAAK;IAElB,IAAI,IAAI,IAAI,EAAE,CAEb;IAED,IAAI,IAAI,CAAC,KAAK,EAAE,EAAE,EAMjB;IAED,OAAO,CAAC,OAAO,CAAW;IAE1B,IAAI,MAAM,IAAI,MAAM,EAAE,CAErB;IAED,SAAS,CAAC,IAAI,EAAE,GAAG,EAAE,GAAG,CAAC,EAAE,MAAM;IAIjC,WAAW,CAAC,EAAE,EAAE,MAAM,GAAG,MAAM;IAI/B,SAAS,CAAC,SAAS,CAAC,EAAE,EAAE,MAAM;IAqC9B,SAAS,CAAC,YAAY,CAAC,EAAE,EAAE,MAAM;IAiBjC,SAAS,CAAC,cAAc,CAAC,OAAO,EAAE,MAAM,EAAE,EAAE,EAAE,MAAM;IA6CpD,OAAO,CAAC,cAAc;IAgBtB,OAAO,CAAC,YAAY;IAIpB,OAAO,CAAC,QAAQ;IAGhB,OAAO,CAAC,WAAW;IAOnB,OAAO,CAAC,kBAAkB;IAY1B,OAAO,CAAC,qBAAqB;IAa7B,OAAO,CAAC,cAAc;IA2BtB,OAAO,CAAC,iBAAiB;IAczB,OAAO,CAAC,YAAY;IAwBpB,OAAO,CAAC,YAAY;CAOrB"}

dist/index.d.ts

@@ -1,8 +1,7 @@
 /// <reference types="node" />
-import DHTOnlineBase from "./dhtOnlineBase.js";
+import DHTDataBase from "./DHTDataBase.js";
-export default class DHTOnline extends DHTOnlineBase {
+export default class DHTData extends DHTDataBase {
     private flood;
-    private swarm;
     constructor(swarm: any, { id, data, ...opts }?: {
         id?: Buffer;
         data?: {};

dist/index.d.ts.map

@@ -1 +1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";AAAA,OAAO,aAAa,MAAM,oBAAoB,CAAC;AAK/C,MAAM,CAAC,OAAO,OAAO,SAAU,SAAQ,aAAa;IAClD,OAAO,CAAC,KAAK,CAAW;IACxB,OAAO,CAAC,KAAK,CAAM;gBAGjB,KAAK,EAAE,GAAG,EACV,EACE,EAA4B,EAC5B,IAAS,EACT,GAAG,IAAI,EACR,GAAE;QAAE,EAAE,CAAC,EAAE,MAAM,CAAC;QAAC,IAAI,CAAC,EAAE,EAAE,CAAC;QAAC,CAAC,GAAG,EAAE,MAAM,GAAG,GAAG,CAAA;KAAO;IAmBxD,aAAa,CAAC,IAAI,EAAE,GAAG;IAKvB,gBAAgB,CAAC,IAAI,EAAE,GAAG;IAW1B,SAAS,CAAC,OAAO,EAAE,GAAG,EAAE,GAAG,CAAC,EAAE,MAAM;CAGrC"}
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";AAAA,OAAO,WAAW,MAAM,kBAAkB,CAAC;AAK3C,MAAM,CAAC,OAAO,OAAO,OAAQ,SAAQ,WAAW;IAC9C,OAAO,CAAC,KAAK,CAAW;gBAGtB,KAAK,EAAE,GAAG,EACV,EACE,EAA4B,EAC5B,IAAS,EACT,GAAG,IAAI,EACR,GAAE;QAAE,EAAE,CAAC,EAAE,MAAM,CAAC;QAAC,IAAI,CAAC,EAAE,EAAE,CAAC;QAAC,CAAC,GAAG,EAAE,MAAM,GAAG,GAAG,CAAA;KAAO;IAkBxD,aAAa,CAAC,IAAI,EAAE,GAAG;IAKvB,gBAAgB,CAAC,IAAI,EAAE,GAAG;IAW1B,SAAS,CAAC,OAAO,EAAE,GAAG,EAAE,GAAG,CAAC,EAAE,MAAM;CAGrC"}

dist/index.js

@@ -3,16 +3,14 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-const dhtOnlineBase_js_1 = __importDefault(require("./dhtOnlineBase.js"));
+const DHTDataBase_js_1 = __importDefault(require("./DHTDataBase.js"));
 const dht_flood_1 = __importDefault(require("@lumeweb/dht-flood"));
 const DISCONNECT_SMOOTH = 500;
-class DHTOnline extends dhtOnlineBase_js_1.default {
+class DHTData extends DHTDataBase_js_1.default {
     flood;
-    swarm;
     constructor(swarm, { id = swarm.keyPair.publicKey, data = {}, ...opts } = {}) {
-        super(id, opts);
+        super(id, { swarm, ...opts });
         this.flood = new dht_flood_1.default({ id, swarm, ...opts });
-        this.swarm = swarm;
         this.flood.on("peer-open", (peer) => this.handlePeerAdd(peer));
         this.flood.on("peer-remove", (peer) => this.handlePeerRemove(peer));
         this.flood.on("message", (message, id) => this.onGetBroadcast(message, id));
@@ -38,4 +36,4 @@ class DHTOnline extends dhtOnlineBase_js_1.default {
         this.flood.broadcast(message, ttl);
     }
 }
-exports.default = DHTOnline;
+exports.default = DHTData;

dist/messages.d.ts

@@ -23,7 +23,15 @@ export interface Message {
      */
     data?: Uint8Array;
     /**
-     * @generated from protobuf field: optional bytes id = 4;
+     * @generated from protobuf field: optional bytes signature = 4;
+     */
+    signature?: Uint8Array;
+    /**
+     * @generated from protobuf field: optional int64 timestamp = 5;
+     */
+    timestamp?: bigint;
+    /**
+     * @generated from protobuf field: optional bytes id = 6;
      */
     id?: Uint8Array;
 }
@@ -39,6 +47,14 @@ export interface State {
      * @generated from protobuf field: optional bytes data = 2;
      */
     data?: Uint8Array;
+    /**
+     * @generated from protobuf field: optional bytes signature = 3;
+     */
+    signature?: Uint8Array;
+    /**
+     * @generated from protobuf field: optional int64 timestamp = 4;
+     */
+    timestamp?: bigint;
 }
 /**
  * @generated from protobuf enum Type

dist/messages.d.ts.map

@@ -1 +1 @@
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+{"version":3,"file":"messages.d.ts","sourceRoot":"","sources":["../src/messages.ts"],"names":[],"mappings":"AAGA,OAAO,KAAK,EAAE,kBAAkB,EAAE,MAAM,sBAAsB,CAAC;AAC/D,OAAO,KAAK,EAAE,aAAa,EAAE,MAAM,sBAAsB,CAAC;AAE1D,OAAO,KAAK,EAAE,iBAAiB,EAAE,MAAM,sBAAsB,CAAC;AAC9D,OAAO,KAAK,EAAE,aAAa,EAAE,MAAM,sBAAsB,CAAC;AAE1D,OAAO,KAAK,EAAE,cAAc,EAAE,MAAM,sBAAsB,CAAC;AAG3D,OAAO,EAAE,WAAW,EAAE,MAAM,sBAAsB,CAAC;AACnD;;GAEG;AACH,MAAM,WAAW,OAAO;IACpB;;OAEG;IACH,IAAI,EAAE,IAAI,CAAC;IACX;;OAEG;IACH,SAAS,EAAE;QACP,CAAC,GAAG,EAAE,MAAM,GAAG,KAAK,CAAC;KACxB,CAAC;IACF;;OAEG;IACH,IAAI,CAAC,EAAE,UAAU,CAAC;IAClB;;OAEG;IACH,SAAS,CAAC,EAAE,UAAU,CAAC;IACvB;;OAEG;IACH,SAAS,CAAC,EAAE,MAAM,CAAC;IACnB;;OAEG;IACH,EAAE,CAAC,EAAE,UAAU,CAAC;CACnB;AACD;;GAEG;AACH,MAAM,WAAW,KAAK;IAClB;;OAEG;IACH,WAAW,EAAE,UAAU,EAAE,CAAC;IAC1B;;OAEG;IACH,IAAI,CAAC,EAAE,UAAU,CAAC;IAClB;;OAEG;IACH,SAAS,CAAC,EAAE,UAAU,CAAC;IACvB;;OAEG;IACH,SAAS,CAAC,EAAE,MAAM,CAAC;CACtB;AACD;;GAEG;AACH,oBAAY,IAAI;IACZ;;OAEG;IACH,YAAY,IAAI;IAChB;;OAEG;IACH,iBAAiB,IAAI;IACrB;;OAEG;IACH,kBAAkB,IAAI;IACtB;;OAEG;IACH,SAAS,IAAI;IACb;;OAEG;IACH,YAAY,IAAI;IAChB;;OAEG;IACH,KAAK,IAAI;CACZ;AAED,cAAM,YAAa,SAAQ,WAAW,CAAC,OAAO,CAAC;;IAW3C,MAAM,CAAC,KAAK,CAAC,EAAE,cAAc,CAAC,OAAO,CAAC,GAAG,OAAO;IAOhD,kBAAkB,CAAC,MAAM,EAAE,aAAa,EAAE,MAAM,EAAE,MAAM,EAAE,OAAO,EAAE,iBAAiB,EAAE,MAAM,CAAC,EAAE,OAAO,GAAG,OAAO;IAkChH,OAAO,CAAC,cAAc;IAgBtB,mBAAmB,CAAC,OAAO,EAAE,OAAO,EAAE,MAAM,EAAE,aAAa,EAAE,OAAO,EAAE,kBAAkB,GAAG,aAAa;CA4B3G;AACD;;GAEG;AACH,eAAO,MAAM,OAAO,cAAqB,CAAC;AAE1C,cAAM,UAAW,SAAQ,WAAW,CAAC,KAAK,CAAC;;IASvC,MAAM,CAAC,KAAK,CAAC,EAAE,cAAc,CAAC,KAAK,CAAC,GAAG,KAAK;IAO5C,kBAAkB,CAAC,MAAM,EAAE,aAAa,EAAE,MAAM,EAAE,MAAM,EAAE,OAAO,EAAE,iBAAiB,EAAE,MAAM,CAAC,EAAE,KAAK,GAAG,KAAK;IA4B5G,mBAAmB,CAAC,OAAO,EAAE,KAAK,EAAE,MAAM,EAAE,aAAa,EAAE,OAAO,EAAE,kBAAkB,GAAG,aAAa;CAkBzG;AACD;;GAEG;AACH,eAAO,MAAM,KAAK,YAAmB,CAAC"}

dist/messages.js

@@ -43,7 +43,9 @@ class Message$Type extends runtime_5.MessageType {
             { no: 1, name: "type", kind: "enum", T: () => ["Type", Type] },
             { no: 2, name: "bootstrap", kind: "map", K: 9 /*ScalarType.STRING*/, V: { kind: "message", T: () => exports.State } },
             { no: 3, name: "data", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
-            { no: 4, name: "id", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ }
+            { no: 4, name: "signature", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
+            { no: 5, name: "timestamp", kind: "scalar", opt: true, T: 3 /*ScalarType.INT64*/, L: 0 /*LongType.BIGINT*/ },
+            { no: 6, name: "id", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ }
         ]);
     }
     create(value) {
@@ -67,7 +69,13 @@ class Message$Type extends runtime_5.MessageType {
                 case /* optional bytes data */ 3:
                     message.data = reader.bytes();
                     break;
-                case /* optional bytes id */ 4:
+                case /* optional bytes signature */ 4:
+                    message.signature = reader.bytes();
+                    break;
+                case /* optional int64 timestamp */ 5:
+                    message.timestamp = reader.int64().toBigInt();
+                    break;
+                case /* optional bytes id */ 6:
                     message.id = reader.bytes();
                     break;
                 default:
@@ -111,9 +119,15 @@ class Message$Type extends runtime_5.MessageType {
         /* optional bytes data = 3; */
         if (message.data !== undefined)
             writer.tag(3, runtime_1.WireType.LengthDelimited).bytes(message.data);
-        /* optional bytes id = 4; */
+        /* optional bytes signature = 4; */
+        if (message.signature !== undefined)
+            writer.tag(4, runtime_1.WireType.LengthDelimited).bytes(message.signature);
+        /* optional int64 timestamp = 5; */
+        if (message.timestamp !== undefined)
+            writer.tag(5, runtime_1.WireType.Varint).int64(message.timestamp);
+        /* optional bytes id = 6; */
         if (message.id !== undefined)
-            writer.tag(4, runtime_1.WireType.LengthDelimited).bytes(message.id);
+            writer.tag(6, runtime_1.WireType.LengthDelimited).bytes(message.id);
         let u = options.writeUnknownFields;
         if (u !== false)
             (u == true ? runtime_2.UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);
@@ -129,7 +143,9 @@ class State$Type extends runtime_5.MessageType {
     constructor() {
         super("State", [
             { no: 1, name: "connectedTo", kind: "scalar", repeat: 2 /*RepeatType.UNPACKED*/, T: 12 /*ScalarType.BYTES*/ },
-            { no: 2, name: "data", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ }
+            { no: 2, name: "data", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
+            { no: 3, name: "signature", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
+            { no: 4, name: "timestamp", kind: "scalar", opt: true, T: 3 /*ScalarType.INT64*/, L: 0 /*LongType.BIGINT*/ }
         ]);
     }
     create(value) {
@@ -150,6 +166,12 @@ class State$Type extends runtime_5.MessageType {
                 case /* optional bytes data */ 2:
                     message.data = reader.bytes();
                     break;
+                case /* optional bytes signature */ 3:
+                    message.signature = reader.bytes();
+                    break;
+                case /* optional int64 timestamp */ 4:
+                    message.timestamp = reader.int64().toBigInt();
+                    break;
                 default:
                     let u = options.readUnknownField;
                     if (u === "throw")
@@ -168,6 +190,12 @@ class State$Type extends runtime_5.MessageType {
         /* optional bytes data = 2; */
         if (message.data !== undefined)
             writer.tag(2, runtime_1.WireType.LengthDelimited).bytes(message.data);
+        /* optional bytes signature = 3; */
+        if (message.signature !== undefined)
+            writer.tag(3, runtime_1.WireType.LengthDelimited).bytes(message.signature);
+        /* optional int64 timestamp = 4; */
+        if (message.timestamp !== undefined)
+            writer.tag(4, runtime_1.WireType.Varint).int64(message.timestamp);
         let u = options.writeUnknownFields;
         if (u !== false)
             (u == true ? runtime_2.UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);

messages.proto

@@ -1,21 +1,25 @@
 syntax = "proto2";
 
 enum Type {
-	BOOTSTRAP_REQUEST = 1;
+    BOOTSTRAP_REQUEST = 1;
-	BOOTSTRAP_RESPONSE = 2;
+    BOOTSTRAP_RESPONSE = 2;
-	CONNECTED = 3;
+    CONNECTED = 3;
-	DISCONNECTED = 4;
+    DISCONNECTED = 4;
-	STATE = 5;
+    STATE = 5;
 }
 
 message Message {
- required Type type = 1;
+    required Type type = 1;
- map<string, State> bootstrap = 2; // For bootstrap events
+    map<string, State> bootstrap = 2; // For bootstrap events
- optional bytes data = 3; // For state event
+    optional bytes data = 3; // For state event
- optional bytes id = 4; // For connected and disconnected events
+    optional bytes signature = 4;
+    optional int64 timestamp = 5;
+    optional bytes id = 6; // For connected and disconnected events
 }
 
 message State {
-	repeated bytes connectedTo = 1;
+    repeated bytes connectedTo = 1;
-	optional bytes data = 2;
+    optional bytes data = 2;
+    optional bytes signature = 3;
+    optional int64 timestamp = 4;
 }

package.json

@@ -1,16 +1,17 @@
 {
-    "name": "@lumeweb/dht-online",
+    "name": "@lumeweb/dht-data",
     "type": "commonjs",
     "version": "0.1.0",
     "main": "dist/index.js",
     "dependencies": {
         "@lumeweb/dht-flood": "https://git.lumeweb.com/LumeWeb/dht-flood.git",
         "@protobuf-ts/plugin": "^2.8.1",
-        "@types/codecs": "^2.2.3",
+        "b4a": "^1.6.1",
-        "codecs": "^3.0.0",
         "compact-encoding": "^2.11.0",
+        "hypercore-crypto": "^3.3.0",
         "jsnetworkx": "^0.3.4",
         "lru": "^3.1.0",
+        "ordered-json": "^0.1.1",
         "protocol-buffers-encodings": "^1.2.0",
         "protomux-rpc": "^1.3.0"
     },

src/DHTDataBase.ts

@@ -1,23 +1,28 @@
 import EventEmitter from "events";
 // @ts-ignore
 import { DiGraph, hasPath } from "jsnetworkx";
-import codecs from "codecs";
+// @ts-ignore
+import orderedJSON from "ordered-json";
+// @ts-ignore
+import crypto from "hypercore-crypto";
+import b4a from "b4a";
 import { Message, State, Type } from "./messages.js";
-
+// @ts-ignore
-const DEFAULT_ENCODING = "json";
+import sodium from "sodium-universal";
+import debug from "debug";
 
 type Bootstrap = {
   [key: string]: State;
 };
 
-export default class DHTOnlineBase extends EventEmitter {
+export default class DHTDataBase extends EventEmitter {
+  protected swarm: any;
   private id: Buffer;
   private bootstrapped: boolean;
   private graph: any;
   private connectedTo: Set<any>;
-  private encoding: codecs.Codec<any>;
 
-  constructor(id: Buffer, { encoding = DEFAULT_ENCODING } = {}) {
+  constructor(id: Buffer, { swarm }: { swarm?: any } = {}) {
     super();
     if (!id) throw new TypeError("Must provide id for self");
 
@@ -26,8 +31,8 @@ export default class DHTOnlineBase extends EventEmitter {
     this.graph = new DiGraph();
     this.connectedTo = new Set();
     this._data = {};
-    this.encoding = codecs(encoding || DEFAULT_ENCODING);
     this._online = [this._maybeHexify(this.id)];
+    this.swarm = swarm;
   }
 
   private _data: {};
@@ -39,8 +44,16 @@ export default class DHTOnlineBase extends EventEmitter {
   set data(value: {}) {
     this._data = value;
 
-    this._setPeer(this.id, value);
+    const timestamp = BigInt(Date.now());
 
+    const rawData = orderedJSON.stringify(value);
+
+    const signature = crypto.sign(
+      b4a.from(`${timestamp}${rawData}`),
+      this.swarm.keyPair.secretKey
+    );
+
+    this._setPeer(this.id, value, timestamp, signature);
     this._broadcastData();
   }
 
@@ -54,10 +67,25 @@ export default class DHTOnlineBase extends EventEmitter {
     throw new TypeError("Broadcast has not been implemented");
   }
 
-  getPeerData(id: Buffer | string) {
+  getPeerRaw(id: Buffer | string) {
     return this.graph.node.get(this._maybeHexify(id));
   }
 
+  getPeerField(id: Buffer | string, field: string) {
+    return this.getPeerRaw(id)?.[field];
+  }
+
+  getPeerData(id: Buffer | string) {
+    return this.getPeerField(id, "data");
+  }
+  getPeerTimestamp(id: Buffer | string) {
+    return this.getPeerField(id, "timestamp");
+  }
+
+  getPeerSignature(id: Buffer | string) {
+    return this.getPeerField(id, "signature");
+  }
+
   protected onAddPeer(id: Buffer) {
     const stringId = id.toString("hex");
     if (this.connectedTo.has(stringId)) {
@@ -125,11 +153,19 @@ export default class DHTOnlineBase extends EventEmitter {
       throw new Error("Missing Type In Message");
     }
     if (type === Type.STATE) {
-      const { data: rawData } = decoded;
+      const { data: rawData, timestamp, signature } = decoded;
-      const data = this.encoding.decode(rawData);
+
-      this._setPeer(id, data);
+      if (
-      this.emit("peer-data", data, id);
+        signature &&
-      this._recalculate();
+        crypto.verify(b4a.from(`${timestamp}${rawData}`), signature, id)
+      ) {
+        const data = rawData ? orderedJSON.parse(rawData) : null;
+        this._setPeer(id, data, timestamp, signature);
+        this.emit("peer-data", data, id);
+        this._recalculate();
+        return;
+      }
+      debug(`Invalid signature received for peer ${id}`);
     } else if (type === Type.CONNECTED) {
       const { id: toId } = decoded;
       this._addPeerConnection(id, Buffer.from(toId as Uint8Array));
@@ -162,12 +198,15 @@ export default class DHTOnlineBase extends EventEmitter {
     if (!Object.keys(rawData).length) {
       return;
     }
-    const data = this.encoding.encode(rawData);
+    const data = orderedJSON.stringify(rawData);
+    const { timestamp, signature } = this.getPeerRaw(this.id);
     this.broadcast(
       Message.toBinary(
         Message.create({
           type: Type.STATE,
-          data,
+          data: b4a.from(data),
+          signature,
+          timestamp,
         })
       )
     );
@@ -177,9 +216,19 @@ export default class DHTOnlineBase extends EventEmitter {
     return this.graph.hasNode(this._maybeHexify(id));
   }
 
-  private _setPeer(id: Buffer | string, data: any) {
+  private _setPeer(
-    this.graph.addNode(this._maybeHexify(id), data);
+    id: Buffer | string,
+    data: any,
+    timestamp?: BigInt,
+    signature?: Uint8Array
+  ) {
+    this.graph.addNode(this._maybeHexify(id), {
+      timestamp,
+      signature,
+      data,
+    });
   }
+
   private _ensurePeer(id: Buffer | string) {
     id = this._maybeHexify(id);
     if (!this._hasSeenPeer(id)) {
@@ -218,18 +267,29 @@ export default class DHTOnlineBase extends EventEmitter {
     }
 
     for (const id in bootstrap) {
-      const { data, connectedTo } = bootstrap[id];
+      const { data, connectedTo, signature, timestamp } = bootstrap[id];
-      const parsedData = data ? this.encoding.decode(data) : null;
+      if (id === this.id.toString("hex")) {
-      let peerData = parsedData || {};
+        continue;
-      if (id === this.id.toString("hex")) continue;
+      }
-      // If we're already tracking them
+
-      if (this._hasSeenPeer(id)) {
+      if (
-        // See what data we already have for them
+        signature &&
-        // Add their existing data to what we got from the bootstrap
+        crypto.verify(b4a.from(`${timestamp}${data}`), signature, b4a.from(id))
-        const existingPeerData = this.getPeerData(id);
+      ) {
-        peerData = { ...existingPeerData, ...peerData };
+        const parsedData = data ? orderedJSON.parse(data) : null;
+        let peerData = parsedData || {};
+
+        // If we're already tracking them
+        if (this._hasSeenPeer(id)) {
+          // See what data we already have for them
+          // Add their existing data to what we got from the bootstrap
+          const existingPeerData = this.getPeerData(id);
+          peerData = { ...existingPeerData, ...peerData };
+          this._setPeer(id, peerData, timestamp, signature);
+        }
+      } else {
+        debug(`Invalid signature received for peer ${id}`);
       }
-      this._setPeer(id, peerData);
       for (const connection of connectedTo) {
         this._addPeerConnection(id, Buffer.from(connection));
       }
@@ -239,14 +299,17 @@ export default class DHTOnlineBase extends EventEmitter {
 
     this._recalculate();
   }
+
   private _getBootstrapInfo() {
     const state: Bootstrap = {};
     for (const [id, rawData] of this.graph.nodes(true)) {
       const connectedTo = this.graph
         .neighbors(id)
         .map((id: string) => Buffer.from(id, "hex"));
-      const data = rawData ? this.encoding.encode(rawData) : null;
+
-      state[id] = { data, connectedTo };
+      const data = rawData ? orderedJSON.stringify(rawData?.data) : null;
+      const { timestamp = undefined, signature = undefined } = rawData;
+      state[id] = { data: b4a.from(data), connectedTo, timestamp, signature };
     }
 
     return state;
@@ -278,7 +341,7 @@ export default class DHTOnlineBase extends EventEmitter {
   }
 
   private _maybeHexify(data: Buffer | string): string {
-    if (Buffer.isBuffer(data)) {
+    if (b4a.isBuffer(data)) {
       return data.toString("hex");
     }
 

src/index.ts

@@ -1,11 +1,10 @@
-import DHTOnlineBase from "./dhtOnlineBase.js";
+import DHTDataBase from "./DHTDataBase.js";
 import DHTFlood from "@lumeweb/dht-flood";
 
 const DISCONNECT_SMOOTH = 500;
 
-export default class DHTOnline extends DHTOnlineBase {
+export default class DHTData extends DHTDataBase {
   private flood: DHTFlood;
-  private swarm: any;
 
   constructor(
     swarm: any,
@@ -15,9 +14,8 @@ export default class DHTOnline extends DHTOnlineBase {
       ...opts
     }: { id?: Buffer; data?: {}; [key: string]: any } = {}
   ) {
-    super(id, opts as any);
+    super(id, { swarm, ...(opts as any) });
     this.flood = new DHTFlood({ id, swarm, ...opts });
-    this.swarm = swarm;
 
     this.flood.on("peer-open", (peer) => this.handlePeerAdd(peer));
     this.flood.on("peer-remove", (peer) => this.handlePeerRemove(peer));

src/messages.ts

@@ -30,7 +30,15 @@ export interface Message {
      */
     data?: Uint8Array; // For state event
     /**
-     * @generated from protobuf field: optional bytes id = 4;
+     * @generated from protobuf field: optional bytes signature = 4;
+     */
+    signature?: Uint8Array;
+    /**
+     * @generated from protobuf field: optional int64 timestamp = 5;
+     */
+    timestamp?: bigint;
+    /**
+     * @generated from protobuf field: optional bytes id = 6;
      */
     id?: Uint8Array; // For connected and disconnected events
 }
@@ -46,6 +54,14 @@ export interface State {
      * @generated from protobuf field: optional bytes data = 2;
      */
     data?: Uint8Array;
+    /**
+     * @generated from protobuf field: optional bytes signature = 3;
+     */
+    signature?: Uint8Array;
+    /**
+     * @generated from protobuf field: optional int64 timestamp = 4;
+     */
+    timestamp?: bigint;
 }
 /**
  * @generated from protobuf enum Type
@@ -83,7 +99,9 @@ class Message$Type extends MessageType<Message> {
             { no: 1, name: "type", kind: "enum", T: () => ["Type", Type] },
             { no: 2, name: "bootstrap", kind: "map", K: 9 /*ScalarType.STRING*/, V: { kind: "message", T: () => State } },
             { no: 3, name: "data", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
-            { no: 4, name: "id", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ }
+            { no: 4, name: "signature", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
+            { no: 5, name: "timestamp", kind: "scalar", opt: true, T: 3 /*ScalarType.INT64*/, L: 0 /*LongType.BIGINT*/ },
+            { no: 6, name: "id", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ }
         ]);
     }
     create(value?: PartialMessage<Message>): Message {
@@ -107,7 +125,13 @@ class Message$Type extends MessageType<Message> {
                 case /* optional bytes data */ 3:
                     message.data = reader.bytes();
                     break;
-                case /* optional bytes id */ 4:
+                case /* optional bytes signature */ 4:
+                    message.signature = reader.bytes();
+                    break;
+                case /* optional int64 timestamp */ 5:
+                    message.timestamp = reader.int64().toBigInt();
+                    break;
+                case /* optional bytes id */ 6:
                     message.id = reader.bytes();
                     break;
                 default:
@@ -151,9 +175,15 @@ class Message$Type extends MessageType<Message> {
         /* optional bytes data = 3; */
         if (message.data !== undefined)
             writer.tag(3, WireType.LengthDelimited).bytes(message.data);
-        /* optional bytes id = 4; */
+        /* optional bytes signature = 4; */
+        if (message.signature !== undefined)
+            writer.tag(4, WireType.LengthDelimited).bytes(message.signature);
+        /* optional int64 timestamp = 5; */
+        if (message.timestamp !== undefined)
+            writer.tag(5, WireType.Varint).int64(message.timestamp);
+        /* optional bytes id = 6; */
         if (message.id !== undefined)
-            writer.tag(4, WireType.LengthDelimited).bytes(message.id);
+            writer.tag(6, WireType.LengthDelimited).bytes(message.id);
         let u = options.writeUnknownFields;
         if (u !== false)
             (u == true ? UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);
@@ -169,7 +199,9 @@ class State$Type extends MessageType<State> {
     constructor() {
         super("State", [
             { no: 1, name: "connectedTo", kind: "scalar", repeat: 2 /*RepeatType.UNPACKED*/, T: 12 /*ScalarType.BYTES*/ },
-            { no: 2, name: "data", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ }
+            { no: 2, name: "data", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
+            { no: 3, name: "signature", kind: "scalar", opt: true, T: 12 /*ScalarType.BYTES*/ },
+            { no: 4, name: "timestamp", kind: "scalar", opt: true, T: 3 /*ScalarType.INT64*/, L: 0 /*LongType.BIGINT*/ }
         ]);
     }
     create(value?: PartialMessage<State>): State {
@@ -190,6 +222,12 @@ class State$Type extends MessageType<State> {
                 case /* optional bytes data */ 2:
                     message.data = reader.bytes();
                     break;
+                case /* optional bytes signature */ 3:
+                    message.signature = reader.bytes();
+                    break;
+                case /* optional int64 timestamp */ 4:
+                    message.timestamp = reader.int64().toBigInt();
+                    break;
                 default:
                     let u = options.readUnknownField;
                     if (u === "throw")
@@ -208,6 +246,12 @@ class State$Type extends MessageType<State> {
         /* optional bytes data = 2; */
         if (message.data !== undefined)
             writer.tag(2, WireType.LengthDelimited).bytes(message.data);
+        /* optional bytes signature = 3; */
+        if (message.signature !== undefined)
+            writer.tag(3, WireType.LengthDelimited).bytes(message.signature);
+        /* optional int64 timestamp = 4; */
+        if (message.timestamp !== undefined)
+            writer.tag(4, WireType.Varint).int64(message.timestamp);
         let u = options.writeUnknownFields;
         if (u !== false)
             (u == true ? UnknownFieldHandler.onWrite : u)(this.typeName, message, writer);