HDNode: adds getPublicKeyBuffer

src/hdnode.js

@@ -136,6 +136,10 @@ HDNode.prototype.getFingerprint = function () {
   return this.getIdentifier().slice(0, 4)
 }
 
+HDNode.prototype.getPublicKeyBuffer = function () {
+  return this.keyPair.getPublicKeyBuffer()
+}
+
 HDNode.prototype.neutered = function () {
   var neuteredKeyPair = new ECPair(null, this.keyPair.Q, {
     network: this.keyPair.network

test/hdnode.js

@@ -121,6 +121,15 @@ describe('HDNode', function () {
       }))
     })
 
+    describe('getPublicKeyBuffer', function () {
+      it('wraps keyPair.getPublicKeyBuffer', sinon.test(function () {
+        this.mock(keyPair).expects('getPublicKeyBuffer')
+          .once().withArgs().returns('pubKeyBuffer')
+
+        assert.strictEqual(hd.getPublicKeyBuffer(), 'pubKeyBuffer')
+      }))
+    })
+
     describe('sign', function () {
       it('wraps keyPair.sign', sinon.test(function () {
         this.mock(keyPair).expects('sign')