diff --git a/lib/PayPro.js b/lib/PayPro.js
index 9d3f5d3..c1e6d7b 100644
--- a/lib/PayPro.js
+++ b/lib/PayPro.js
@@ -135,7 +135,10 @@ PayPro.prototype.x509Verify = function(returnTrust) {
   return verified && chainVerified;
 };
 
-PayPro.verifyCertChain = function(chain, type) {
+PayPro.verifyCertChain = function(chain, sigHashAlg) {
+  if (sigHashAlg === 'none') {
+    return true;
+  }
   return chain.every(function(cert, i) {
     var der = cert.toString('hex');
     var pem = PayPro.DERtoPEM(der, 'CERTIFICATE');
@@ -189,7 +192,7 @@ PayPro.verifyCertChain = function(chain, type) {
     // from the DER Certificate:
     var tbs = PayPro.getTBSCertificate(data);
 
-    var verifier = crypto.createVerify(type ? 'RSA-' + type : 'RSA');
+    var verifier = crypto.createVerify('RSA-' + sigHashAlg);
     verifier.update(tbs);
     var sigVerified = verifier.verify(npubKey, sig);
 
diff --git a/lib/browser/PayPro.js b/lib/browser/PayPro.js
index f62e125..011950d 100644
--- a/lib/browser/PayPro.js
+++ b/lib/browser/PayPro.js
@@ -149,7 +149,10 @@ PayPro.prototype.x509Verify = function(returnTrust) {
   return verified && chainVerified;
 };
 
-PayPro.verifyCertChain = function(chain, type) {
+PayPro.verifyCertChain = function(chain, sigHashAlg) {
+  if (sigHashAlg === 'none') {
+    return true;
+  }
   return chain.every(function(cert, i) {
     var der = cert.toString('hex');
     // var pem = self._DERtoPEM(der, 'CERTIFICATE');
@@ -180,9 +183,9 @@ PayPro.verifyCertChain = function(chain, type) {
     //
     // Get Public Key from next certificate (via KJUR because it's a mess):
     //
-    if (type !== 'none') {
+    if (sigHashAlg !== 'none') {
       var js = new KJUR.crypto.Signature({
-        alg: type + 'withRSA',
+        alg: sigHashAlg + 'withRSA',
         prov: 'cryptojs/jsrsa'
       });
       js.initVerifyByCertificatePEM(npem);
@@ -212,9 +215,9 @@ PayPro.verifyCertChain = function(chain, type) {
     // Verify current Certificate signature
     //
 
-    if (type !== 'none') {
+    if (sigHashAlg !== 'none') {
       var jsrsaSig = new KJUR.crypto.Signature({
-        alg: type + 'withRSA',
+        alg: sigHashAlg + 'withRSA',
         prov: 'cryptojs/jsrsa'
       });
       jsrsaSig.initVerifyByPublicKey(npubKey);