From 530f05f87602c2cf078955ad46b8b182ff9b12ee Mon Sep 17 00:00:00 2001
From: Matias Alejo Garcia <ematiu@gmail.com>
Date: Sat, 15 Mar 2014 21:15:10 -0300
Subject: [PATCH] add limit to try-verify loop

---
 Transaction.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Transaction.js b/Transaction.js
index 3b582332a..874183de7 100644
--- a/Transaction.js
+++ b/Transaction.js
@@ -943,10 +943,15 @@ Transaction.prototype.sign = function (keys, opts) {
     var txSigHash = self.hashForSignature(s, i, signhash);
 
     var sigRaw;
+    var triesLeft = 10;
     do {
       sigRaw = wk.privKey.signSync(txSigHash);
-    } while ( wk.privKey.verifySignatureSync(txSigHash, sigRaw) === false );
+    } while ( wk.privKey.verifySignatureSync(txSigHash, sigRaw) === false && triesLeft-- );
 
+    if (!triesLeft) {
+      log.debug('could not sign input:'+i +' verification failed');
+      continue;
+    }
 
     var sigType = new Buffer(1);
     sigType[0] = signhash;