test decrypt

test/test.cbc.js

@@ -70,18 +70,17 @@ describe('CBC', function() {
       blockcipher.encrypt = function(messagebuf, cipherkeybuf) {
         return messagebuf;
       };
+      blockcipher.decrypt = function(messagebuf, cipherkeybuf) {
+        return messagebuf;
+      };
       var encbuf = CBC.encrypt(messagebuf, ivbuf, blockcipher, cipherkeybuf);
-      encbuf.toString('hex').should.equal('101010101010101010101010101010100000000000000000000000000000000010101010101010101010101010101010');
-    });
-
+      var buf2 = CBC.decrypt(encbuf, ivbuf, blockcipher, cipherkeybuf);
     });
 
-  describe('@encrypt', function() {
-
-    it('should return this known value', function() {
+    it('should return this shorter known value', function() {
       var messagebuf1 = new Buffer(128 / 8);
       messagebuf1.fill(0);
-      var messagebuf2 = new Buffer(128 / 8);
+      var messagebuf2 = new Buffer(120 / 8);
       messagebuf2.fill(0x10);
       var messagebuf = Buffer.concat([messagebuf1, messagebuf2]);
       var ivbuf = new Buffer(128 / 8);
@@ -102,7 +101,7 @@ describe('CBC', function() {
     it('should return this shorter known value', function() {
       var messagebuf1 = new Buffer(128 / 8);
       messagebuf1.fill(0);
-      var messagebuf2 = new Buffer(120 / 8);
+      var messagebuf2 = new Buffer(136 / 8);
       messagebuf2.fill(0x10);
       var messagebuf = Buffer.concat([messagebuf1, messagebuf2]);
       var ivbuf = new Buffer(128 / 8);
@@ -120,10 +119,14 @@ describe('CBC', function() {
       var buf2 = CBC.decrypt(encbuf, ivbuf, blockcipher, cipherkeybuf);
     });
 
-    it('should return this shorter known value', function() {
+  });
+  
+  describe('decrypt', function() {
+
+    it('', function() {
       var messagebuf1 = new Buffer(128 / 8);
       messagebuf1.fill(0);
-      var messagebuf2 = new Buffer(136 / 8);
+      var messagebuf2 = new Buffer(128 / 8);
       messagebuf2.fill(0x10);
       var messagebuf = Buffer.concat([messagebuf1, messagebuf2]);
       var ivbuf = new Buffer(128 / 8);
@@ -138,7 +141,8 @@ describe('CBC', function() {
         return messagebuf;
       };
       var encbuf = CBC.encrypt(messagebuf, ivbuf, blockcipher, cipherkeybuf);
-      var buf2 = CBC.decrypt(encbuf, ivbuf, blockcipher, cipherkeybuf);
+      var messagebuf2 = CBC.decrypt(encbuf, ivbuf, blockcipher, cipherkeybuf);
+      messagebuf2.toString('hex').should.equal(messagebuf.toString('hex'));
     });
 
   });