BIP44 Account xprv and xpub keys are shown

which are used for import / export in most BIP44 wallets.

3 files changed, 107 insertions, 23 deletions

diff --git a/src/index.html b/src/index.html
index aab473c..e3eebd6 100644
--- a/src/index.html
+++ b/src/index.html
@@ -313,6 +313,36 @@
                                     </div>
                                 </div>
                                 <div class="form-group">
+                                    <label class="col-sm-2 control-label">
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <p data-translate>The account extendend keys can be used for importing to most BIP44 compatible wallets, such as mycelium or electrum.</p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account-xprv" class="col-sm-2 control-label">
+                                        <span data-translate>Account Extended Private Key</span>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <textarea id="account-xprv" type="text" class="account-xprv form-control" readonly data-show-qr></textarea>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label for="account-xpub" class="col-sm-2 control-label">
+                                        <span data-translate>Account Extended Public Key</span>
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <textarea id="account-xpub" type="text" class="account-xpub form-control" readonly data-show-qr></textarea>
+                                    </div>
+                                </div>
+                                <div class="form-group">
+                                    <label class="col-sm-2 control-label">
+                                    </label>
+                                    <div class="col-sm-10">
+                                        <p data-translate>The BIP32 derivation path and extended keys are the basis for the derived addresses.</p>
+                                    </div>
+                                </div>
+                                <div class="form-group">
                                     <label for="bip44-path" class="col-sm-2 control-label" data-translate>BIP32 Derivation Path</label>
                                     <div class="col-sm-10">
                                         <input id="bip44-path" type="text" class="path form-control" value="m/44'/0'/0'/0" readonly="readonly">
@@ -344,27 +374,6 @@
                                     </label>
                                 </div>
                                 <div class="form-group">
-                                    <label for="mycelium-path" class="col-sm-2 control-label" data-translate>Mycelium Wallet</label>
-                                    <div class="col-sm-10">
-                                        <p class="form-control no-border" data-translate-html>
-                                            <code>m/44'/0'/0'</code> generates extended keys for import / export
-                                        </p>
-                                        <p class="form-control no-border" data-translate-html>
-                                            <code>m/44'/0'/1'</code> for the next account. Continue incrementing for more accounts (most use a single account).
-                                        </p>
-                                        <p class="form-control no-border" data-translate-html>
-                                            <code>m/44'/0'/0'/0</code> generates public addresses
-                                        </p>
-                                        <p class="form-control no-border" data-translate-html>
-                                            <code>m/44'/0'/0'/1</code> generates change addresses
-                                        </p>
-                                        <p class="form-control no-border" data-translate-html>
-                                            For more info see the
-                                            <a href="http://www.mycelium.com/" target="_blank">Mycelium Wallet homepage</a>
-                                        </p>
-                                    </div>
-                                </div>
-                                <div class="form-group">
                                     <label for="core-path" class="col-sm-2 control-label" data-translate>Bitcoin Core</label>
                                     <div class="col-sm-10">
                                         <p class="form-control no-border" data-translate-html>
@@ -394,13 +403,13 @@
                     </div>
                     <form class="form-horizontal" role="form">
                         <div class="form-group">
-                            <label for="extended-priv-key" class="col-sm-2 control-label" data-translate>BIP32 Extended Key</label>
+                            <label for="extended-priv-key" class="col-sm-2 control-label" data-translate>BIP32 Extended Private Key</label>
                             <div class="col-sm-10">
                                 <textarea id="extended-priv-key" class="extended-priv-key form-control" readonly="readonly" data-show-qr></textarea>
                             </div>
                         </div>
                         <div class="form-group">
-                            <label for="extended-pub-key" class="col-sm-2 control-label" data-translate>BIP32 Extended Key (addresses only)</label>
+                            <label for="extended-pub-key" class="col-sm-2 control-label" data-translate>BIP32 Extended Public Key</label>
                             <div class="col-sm-10">
                                 <textarea id="extended-pub-key" class="extended-pub-key form-control" readonly="readonly" data-show-qr></textarea>
                             </div>
diff --git a/src/js/index.js b/src/js/index.js
index 6367c01..748a2ba 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -51,6 +51,8 @@
     DOM.bip44purpose = $("#bip44 .purpose");
     DOM.bip44coin = $("#bip44 .coin");
     DOM.bip44account = $("#bip44 .account");
+    DOM.bip44accountXprv = $("#bip44 .account-xprv");
+    DOM.bip44accountXpub = $("#bip44 .account-xpub");
     DOM.bip44change = $("#bip44 .change");
     DOM.generatedStrength = $(".generate-container .strength");
     DOM.hardenedAddresses = $(".hardened-addresses");
@@ -239,6 +241,9 @@
             return;
         }
         bip32ExtendedKey = calcBip32ExtendedKey(derivationPath);
+        if (bip44TabSelected()) {
+            displayBip44Info();
+        }
         displayBip32Info();
         hidePending();
     }
@@ -450,6 +455,24 @@
         return false;
     }
 
+    function displayBip44Info() {
+        // Get the derivation path for the account
+        var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
+        var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
+        var account = parseIntNoNaN(DOM.bip44account.val(), 0);
+        var path = "m/";
+        path += purpose + "'/";
+        path += coin + "'/";
+        path += account + "'/";
+        // Calculate the account extended keys
+        var accountExtendedKey = calcBip32ExtendedKey(path);
+        var accountXprv = accountExtendedKey.toBase58();
+        var accountXpub = accountExtendedKey.toBase58(false);
+        // Display the extended keys
+        DOM.bip44accountXprv.val(accountXprv);
+        DOM.bip44accountXpub.val(accountXpub);
+    }
+
     function displayBip32Info() {
         // Display the key
         DOM.seed.val(seed);
diff --git a/tests.js b/tests.js
index 10d13a3..d5a73f6 100644
--- a/tests.js
+++ b/tests.js
@@ -3086,6 +3086,58 @@ page.open(url, function(status) {
 });
 },
 
+// BIP44 account extendend private key is shown
+// github issue 37 - compatibility with electrum
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xprv9yzrnt4zWVJUr1k2VxSPy9ettKz5PpeDMgaVG7UKedhqnw1tDkxP2UyYNhuNSumk2sLE5ctwKZs9vwjsq3e1vo9egCK6CzP87H2cVYXpfwQ";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check the BIP44 account extended private key
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".account-xprv").val();
+        });
+        if (actual != expected) {
+            console.log("BIP44 account extended private key is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
+// BIP44 account extendend public key is shown
+// github issue 37 - compatibility with electrum
+function() {
+page.open(url, function(status) {
+    // set the phrase
+    var expected = "xpub6CzDCPbtLrrn4VpVbyyQLHbdSMpZoHN4iuW64VswCyEpfjM2mJGdaHJ2DyuZwtst96E16VvcERb8BBeJdHSCVmAq9RhtRQg6eAZFrTKCNqf";
+    page.evaluate(function() {
+        $(".phrase").val("abandon abandon ability");
+        $(".phrase").trigger("input");
+    });
+    // check the BIP44 account extended public key
+    waitForGenerate(function() {
+        var actual = page.evaluate(function() {
+            return $(".account-xpub").val();
+        });
+        if (actual != expected) {
+            console.log("BIP44 account extended public key is incorrect");
+            console.log("Expected: " + expected);
+            console.log("Actual: " + actual);
+            fail();
+        }
+        next();
+    });
+});
+},
+
 
 // If you wish to add more tests, do so here...