From dc567fa7f3c78ca7e271716125bf0510cfac099f Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Tue, 7 Mar 2017 17:30:32 +0100
Subject: [PATCH] signing keys are stored in hex so encode and decode them

---
 www/common/encode.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 www/common/encode.js

diff --git a/www/common/encode.js b/www/common/encode.js
new file mode 100644
index 000000000..44b2071ba
--- /dev/null
+++ b/www/common/encode.js
@@ -0,0 +1,19 @@
+define([], function () {
+    var exports = {};
+
+    var hexToUint8Array = exports.hexToUint8Array = function (s) {
+        // if not hex or odd number of characters
+        if (!/[a-fA-F0-9]+/.test(s) || s.length % 2) { throw new Error("string is not hex"); }
+        return s.split(/([0-9a-fA-F]{2})/)
+            .filter(function (x) { return x; })
+            .map(function (x) { return Number('0x' + x); });
+    };
+
+    var uint8ArrayToHex = exports.uint8ArrayToHex = function (a) {
+        return a.reduce(function(memo, i) {
+            return memo + ((i < 16) ? '0' : '') + i.toString(16);
+        }, '');
+    };
+
+    return exports;
+});