1 files changed, 16 insertions, 0 deletions
diff --git a/node_modules/public-encrypt/mgf.js b/node_modules/public-encrypt/mgf.js
new file mode 100644
index 000000000..ff727448f
--- /dev/null
+++ b/node_modules/public-encrypt/mgf.js
@@ -0,0 +1,16 @@
+var createHash = require('create-hash');
+module.exports = function (seed, len) {
+  var t = new Buffer('');
+  var  i = 0, c;
+  while (t.length < len) {
+    c = i2ops(i++);
+    t = Buffer.concat([t, createHash('sha1').update(seed).update(c).digest()]);
+  }
+  return t.slice(0, len);
+};
+
+function i2ops(c) {
+  var out = new Buffer(4);
+  out.writeUInt32BE(c,0);
+  return out;
+}
+\ No newline at end of file