From 2482f5e127b4e190e849c5882843552d07296852 Mon Sep 17 00:00:00 2001
From: Hanyuan Dong <stedong@ucdavis.edu>
Date: Thu, 12 Jul 2018 00:10:31 -0700
Subject: [PATCH 1/2] huobi new signature

---
 js/base/functions/crypto.js | 8 ++++++++
 js/huobipro.js              | 7 +++++++
 2 files changed, 15 insertions(+)

diff --git a/js/base/functions/crypto.js b/js/base/functions/crypto.js
index ddbd56b0b623f..734d60f75788d 100644
--- a/js/base/functions/crypto.js
+++ b/js/base/functions/crypto.js
@@ -2,6 +2,7 @@
 
 /*  ------------------------------------------------------------------------ */
 
+const Crypto = require ('crypto');
 const CryptoJS = require ('crypto-js')
 const { capitalize } = require ('./string')
 const { stringToBase64, utf16ToBase64, urlencodeBase64 } = require ('./encode')
@@ -34,10 +35,17 @@ const jwt = function JSON_web_token (request, secret, alg = 'HS256', hash = 'sha
     return [ token, signature ].join ('.')
 }
 
+const ecdsa = (signature, privateKey, hash = 'sha256', digest = 'hex') => {
+    const sign = Crypto.createSign (hash);
+    sign.update(signature);
+    return sign.sign (privateKey, digest);
+}
+
 /*  ------------------------------------------------------------------------ */
 
 module.exports = {
 
+    ecdsa,
     hash,
     hmac,
     jwt
diff --git a/js/huobipro.js b/js/huobipro.js
index 6bec4cc343e5a..d964a848eaa23 100644
--- a/js/huobipro.js
+++ b/js/huobipro.js
@@ -50,6 +50,11 @@ module.exports = class huobipro extends Exchange {
                 'doc': 'https://github.com/huobiapi/API_Docs/wiki/REST_api_reference',
                 'fees': 'https://www.huobi.pro/about/fee/',
             },
+            'requiredCredentials': {
+                'apiKey': true,
+                'secret': true,
+                'password': true,
+            },
             'api': {
                 'market': {
                     'get': [
@@ -724,7 +729,9 @@ module.exports = class huobipro extends Exchange {
             // eslint-disable-next-line quotes
             let payload = [ method, this.hostname, url, auth ].join ("\n");
             let signature = this.hmac (this.encode (payload), this.encode (this.secret), 'sha256', 'base64');
+            const privateSignature = this.ecdsa (signature, this.password, 'sha256', 'base64')
             auth += '&' + this.urlencode ({ 'Signature': signature });
+            auth += '&' + this.urlencode ({ 'PrivateSignature': privateSignature });
             url += '?' + auth;
             if (method === 'POST') {
                 body = this.json (query);

From 070025218303110b53b2e472b6ff814e0a7cdda2 Mon Sep 17 00:00:00 2001
From: Hanyuan Dong <stedong@ucdavis.edu>
Date: Thu, 12 Jul 2018 00:12:16 -0700
Subject: [PATCH 2/2] fixed small issue

---
 js/base/functions/crypto.js | 2 +-
 js/huobipro.js              | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/base/functions/crypto.js b/js/base/functions/crypto.js
index 734d60f75788d..2a2f4fce22297 100644
--- a/js/base/functions/crypto.js
+++ b/js/base/functions/crypto.js
@@ -37,7 +37,7 @@ const jwt = function JSON_web_token (request, secret, alg = 'HS256', hash = 'sha
 
 const ecdsa = (signature, privateKey, hash = 'sha256', digest = 'hex') => {
     const sign = Crypto.createSign (hash);
-    sign.update(signature);
+    sign.update (signature);
     return sign.sign (privateKey, digest);
 }
 
diff --git a/js/huobipro.js b/js/huobipro.js
index d964a848eaa23..81fcc483a2bcc 100644
--- a/js/huobipro.js
+++ b/js/huobipro.js
@@ -729,7 +729,7 @@ module.exports = class huobipro extends Exchange {
             // eslint-disable-next-line quotes
             let payload = [ method, this.hostname, url, auth ].join ("\n");
             let signature = this.hmac (this.encode (payload), this.encode (this.secret), 'sha256', 'base64');
-            const privateSignature = this.ecdsa (signature, this.password, 'sha256', 'base64')
+            const privateSignature = this.ecdsa (signature, this.password, 'sha256', 'base64');
             auth += '&' + this.urlencode ({ 'Signature': signature });
             auth += '&' + this.urlencode ({ 'PrivateSignature': privateSignature });
             url += '?' + auth;