From a4eb9c64d057f17a65eb6869afb67b1f400e8dba Mon Sep 17 00:00:00 2001
From: Michael Stegeman <michael@stegeman.me>
Date: Wed, 22 Apr 2020 12:29:25 -0800
Subject: [PATCH] Update fast-srp-hap dependency.

---
 lib/protocol/pairing-protocol.js | 34 ++++++++++++++------------------
 package.json                     |  4 ++--
 2 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/lib/protocol/pairing-protocol.js b/lib/protocol/pairing-protocol.js
index 1cd1a48..509a256 100644
--- a/lib/protocol/pairing-protocol.js
+++ b/lib/protocol/pairing-protocol.js
@@ -6,7 +6,7 @@
 const HKDF = require('hkdf');
 const TLV = require('../model/tlv');
 const sodium = require('libsodium-wrappers');
-const srp = require('fast-srp-hap');
+const {SRP, SrpClient} = require('fast-srp-hap');
 const {v4: uuidv4} = require('uuid');
 
 const Steps = {
@@ -211,25 +211,21 @@ class PairingProtocol {
    * @returns {Promise} Promise which resolves to a Buffer.
    */
   buildPairSetupM3(m2Tlv, pin) {
-    return new Promise((resolve) => {
-      srp.genKey(32, (err, key) => {
-        this.srpClient = new srp.Client(
-          srp.params['3072'],
-          m2Tlv.get(Types.kTLVType_Salt),
-          Buffer.from('Pair-Setup'),
-          Buffer.from(pin),
-          key
-        );
-        this.srpClient.setB(m2Tlv.get(Types.kTLVType_PublicKey));
-
-        const data = new Map();
-        data.set(Types.kTLVType_State, Buffer.from([Steps.M3]));
-        data.set(Types.kTLVType_PublicKey, this.srpClient.computeA());
-        data.set(Types.kTLVType_Proof, this.srpClient.computeM1());
-        const packet = TLV.encodeObject(data);
+    return SRP.genKey(32).then((key) => {
+      this.srpClient = new SrpClient(
+        SRP.params['3072'],
+        m2Tlv.get(Types.kTLVType_Salt),
+        Buffer.from('Pair-Setup'),
+        Buffer.from(pin),
+        key
+      );
+      this.srpClient.setB(m2Tlv.get(Types.kTLVType_PublicKey));
 
-        resolve(packet);
-      });
+      const data = new Map();
+      data.set(Types.kTLVType_State, Buffer.from([Steps.M3]));
+      data.set(Types.kTLVType_PublicKey, this.srpClient.computeA());
+      data.set(Types.kTLVType_Proof, this.srpClient.computeM1());
+      return TLV.encodeObject(data);
     });
   }
 
diff --git a/package.json b/package.json
index d38d60c..46fb2f3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "hap-controller",
-  "version": "0.3.3",
+  "version": "0.3.4",
   "description": "Library to implement a HAP (HomeKit) controller",
   "main": "lib/index.js",
   "directories": {
@@ -28,7 +28,7 @@
   "dependencies": {
     "@abandonware/noble": "^1.9.2-8",
     "dnssd": "^0.4.1",
-    "fast-srp-hap": "^1.0.1",
+    "fast-srp-hap": "^2.0.2",
     "hkdf": "0.0.2",
     "http-parser-js": "^0.5.2",
     "libsodium-wrappers": "^0.7.6",