crypto: introduce .setEngine(engine, [flags])

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/crypto.js b/lib/crypto.js
index add6a79d78..33baa40467 100644
--- a/lib/crypto.js
+++ b/lib/crypto.js
@@ -35,6 +35,7 @@ try {
   throw new Error('node.js not compiled with openssl crypto support.');
 }
 
+var constants = require('constants');
 var stream = require('stream');
 var util = require('util');
 
@@ -621,6 +622,21 @@ Certificate.prototype.exportChallenge = function(object, encoding) {
 };
 
 
+exports.setEngine = function setEngine(id, flags) {
+  if (!util.isString(id))
+    throw new TypeError('id should be a string');
+
+  if (flags && !util.isNumber(flags))
+    throw new TypeError('flags should be a number, if present');
+  flags = flags >>> 0;
+
+  // Use provided engine for everything by default
+  if (flags === 0)
+    flags = constants.ENGINE_METHOD_ALL;
+
+  return binding.setEngine(id, flags);
+};
+
 exports.randomBytes = randomBytes;
 exports.pseudoRandomBytes = pseudoRandomBytes;