Merge pull request #5 from coolaj86/patch-3

generate keys w/ ursa, fallback to node-forge
michielbdejong · May 28, 2015 · ff3e8b4 · ff3e8b4
2 parents 03257b8 + 286ff36
commit ff3e8b4
Showing 1 changed file with 16 additions and 1 deletion.
diff --git a/lib/crypto-util.js b/lib/crypto-util.js
@@ -96,7 +96,22 @@ module.exports = {
   ///// KEY PAIR MANAGEMENT
 
   generateKeyPair: function(bits) {
-    var keyPair = forge.pki.rsa.generateKeyPair({bits: bits, e: 0x10001});
+    var ursa, keyPair;
+
+    try {
+      ursa = require('ursa');
+    } catch(e) {
+      // ignore
+    }
+
+    if (ursa) {
+      // This takes between 2 and 6 seconds on a raspberry pi
+      keyPair = ursa.generatePrivateKey(bits, 0x10001);
+      return module.exports.importPemPrivateKey(keyPair.toPrivatePem('utf8'));
+    }
+
+    // This takes 20-30 minutes on a raspberry pi
+    keyPair = forge.pki.rsa.generateKeyPair({bits: bits, e: 0x10001});
     return {
       privateKey: exportPrivateKey(keyPair.privateKey),
       publicKey: exportPublicKey(keyPair.publicKey)