From 27a2d4efb1d820f65b5dfeb7e8a2282e39ef5f76 Mon Sep 17 00:00:00 2001
From: Kiyomichi Kosaka <ddeus.kkhub@mailnull.com>
Date: Mon, 5 Apr 2021 13:19:01 +0200
Subject: [PATCH] Add setting to configure old HD wallet generation with
 hardened paths.

---
 index.html    | 13 +++++++++++++
 js/coinbin.js |  3 +++
 2 files changed, 16 insertions(+)

diff --git a/index.html b/index.html
index b48d7f7..6b5f434 100644
--- a/index.html
+++ b/index.html
@@ -1456,6 +1456,19 @@
 							</div>
 						</div>
 
+						<hr>
+
+						<div class="row">
+							<div class="col-md-12">
+								<b>HD wallet hardened path derivation</b>: <br>
+								<p class="text-muted">The path derivation for hardened paths was calculated wrong in earlier versions of coinb.in. Please select the old path derivation to recover HD wallet keys generated with older version of coinb.in.</p>
+								<select class="form-control" id="coinjs_derivation">
+									<option value="bip32_derivation">BIP32 derivation</option>
+									<option value="coinbin_broken">Old coinb.in derivation</option>
+								</select>
+							</div>
+						</div>
+
 						<br>
 
 						<div id="statusSettings" class="hidden alert">
diff --git a/js/coinbin.js b/js/coinbin.js
index afc98f1..33382ce 100644
--- a/js/coinbin.js
+++ b/js/coinbin.js
@@ -1914,6 +1914,8 @@ $(document).ready(function() {
 			coinjs.hdkey.pub =  $("#coinjs_hdpub").val()*1;
 			coinjs.hdkey.prv =  $("#coinjs_hdprv").val()*1;
 
+			coinjs.hd_derivation =  $("#coinjs_derivation").val();
+
 			configureBroadcast();
 			configureGetUnspentTx();
 
@@ -1959,6 +1961,7 @@ $(document).ready(function() {
 		$("#coinjs_multisig").val(o[2]);
 		$("#coinjs_hdpub").val(o[3]);
 		$("#coinjs_hdprv").val(o[4]);
+		$("#coinjs_derivation").val(o[7]);
 
 		// hide/show custom screen
 		if($("option:selected",this).val()=="custom"){