add authentication via new Message core class

test/test.Message.js

@@ -0,0 +1,85 @@
+'use strict';
+
+var chai = chai || require('chai');
+var should = chai.should();
+var sinon = require('sinon');
+var Message = require('../js/models/core/Message');
+var bitcore = bitcore || require('bitcore');
+var Buffer = bitcore.Buffer;
+
+describe('Message model', function() {
+  var key = new bitcore.Key();
+  key.private = bitcore.util.sha256(new Buffer('test'));
+  key.regenerateSync();
+
+  var key2 = new bitcore.Key();
+  key2.private = bitcore.util.sha256(new Buffer('test 2'));
+  key2.regenerateSync();
+
+  describe('#encode', function() {
+    
+    it('should encode a message', function() {
+      var message = new Buffer('message');
+      var encoded = Message.encode(key2.public, key, message);
+      should.exist(encoded.pubkey);
+      should.exist(encoded.sig);
+      should.exist(encoded.encrypted);
+    });
+
+  });
+
+  describe('#decode', function() {
+    var message = new Buffer('message');
+    var messagehex = message.toString('hex');
+    var encoded = Message.encode(key2.public, key, message);
+    
+    it('should decode an encoded message', function() {
+      var decoded = Message.decode(key2, encoded);
+      decoded.toString('hex').should.equal(messagehex);
+    });
+
+  });
+
+  describe('#_encrypt', function() {
+    
+    it('should encrypt data', function() {
+      var payload = new Buffer('payload');
+      var encrypted = Message._encrypt(key.public, payload);
+      encrypted.length.should.equal(129);
+    });
+
+  });
+
+  describe('#_decrypt', function() {
+    var payload = new Buffer('payload');
+    var payloadhex = payload.toString('hex');
+    
+    it('should decrypt encrypted data', function() {
+      var encrypted = Message._encrypt(key.public, payload);
+      var decrypted = Message._decrypt(key.private, encrypted);
+      decrypted.toString('hex').should.equal(payloadhex);
+    });
+
+  });
+
+  describe('#_sign', function() {
+    
+    it('should sign data', function() {
+      var payload = new Buffer('payload');
+      var sig = Message._sign(key, payload);
+      sig.length.should.be.greaterThan(60);
+    });
+
+  });
+
+  describe('#_verify', function() {
+    var payload = new Buffer('payload');
+    var sig = Message._sign(key, payload);
+    
+    it('should verify signed data', function() {
+      Message._verify(key.public, sig, payload).should.equal(true);
+    });
+
+  });
+
+});