From 225ade6c7ae53433e0c8c29f677c6295b97cf305 Mon Sep 17 00:00:00 2001
From: Manuel Araoz <manuelaraoz@gmail.com>
Date: Mon, 22 Dec 2014 17:33:00 -0300
Subject: [PATCH] return comment to deterministicK

---
 lib/crypto/ecdsa.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/crypto/ecdsa.js b/lib/crypto/ecdsa.js
index 6e5c091..9ab220d 100644
--- a/lib/crypto/ecdsa.js
+++ b/lib/crypto/ecdsa.js
@@ -75,6 +75,9 @@ ECDSA.prototype.randomK = function() {
 // https://tools.ietf.org/html/rfc6979#section-3.2
 ECDSA.prototype.deterministicK = function(badrs) {
   /* jshint maxstatements: 25 */
+  // if r or s were invalid when this function was used in signing,
+  // we do not want to actually compute r, s here for efficiency, so,
+  // we can increment badrs. explained at end of RFC 6979 section 3.2
   if (_.isUndefined(badrs)) {
     badrs = 0;
   }