Migrate AES to Native Client

Up to 4x faster upload files
Up to 2x faster download files

app/js/lib/bin_utils.js

@@ -112,11 +112,11 @@ function bytesXor (bytes1, bytes2) {
 }
 
 function bytesToWords (bytes) {
-  var len = bytes.byteLength || bytes.length,
-      words = [], i;
   if (bytes instanceof ArrayBuffer) {
     bytes = new Uint8Array(bytes);
   }
+  var len = bytes.length,
+      words = [], i;
   for (i = 0; i < len; i++) {
     words[i >>> 2] |= bytes[i] << (24 - (i % 4) * 8);
   }
@@ -156,6 +156,24 @@ function bytesToArrayBuffer (b) {
   return (new Uint8Array(b)).buffer;
 }
 
+function convertToArrayBuffer(bytes) {
+  // Be careful with converting subarrays!!
+  if (bytes instanceof ArrayBuffer) {
+    return bytes;
+  }
+  if (bytes.buffer !== undefined) {
+    return bytes.buffer;
+  }
+  return bytesToArrayBuffer(bytes);
+}
+
+function convertToUint8Array(bytes) {
+  if (bytes.buffer !== undefined) {
+    return bytes;
+  }
+  return new Uint8Array(bytes);
+}
+
 function bytesFromArrayBuffer (buffer) {
   var len = buffer.byteLength,
       byteView = new Uint8Array(buffer),
@@ -207,25 +225,24 @@ function uintToInt (val) {
   return val;
 }
 
-function sha1Hash (bytes) {
+function sha1HashSync (bytes) {
   this.rushaInstance = this.rushaInstance || new Rusha(1024 * 1024);
+
   // console.log(dT(), 'SHA-1 hash start', bytes.byteLength || bytes.length);
-  var hashBytes = bytesFromArrayBuffer(rushaInstance.rawDigest(bytes).buffer);
+  var hashBytes = rushaInstance.rawDigest(bytes).buffer;
   // console.log(dT(), 'SHA-1 hash finish');
 
   return hashBytes;
 }
 
+function sha1BytesSync (bytes) {
+  return bytesFromArrayBuffer(sha1HashSync(bytes));
+}
 
 
-function rsaEncrypt (publicKey, bytes) {
-  var needPadding = 255 - bytes.length;
-  if (needPadding > 0) {
-    var padding = new Array(needPadding);
-    (new SecureRandom()).nextBytes(padding);
 
-    bytes = bytes.concat(padding);
-  }
+function rsaEncrypt (publicKey, bytes) {
+  bytes = addPadding(bytes, 255);
 
   // console.log('RSA encrypt start');
   var N = new BigInteger(publicKey.modulus, 16),
@@ -233,18 +250,16 @@ function rsaEncrypt (publicKey, bytes) {
       X = new BigInteger(bytes),
       encryptedBigInt = X.modPowInt(E, N),
       encryptedBytes  = bytesFromBigInt(encryptedBigInt, 256);
-
   // console.log('RSA encrypt finish');
 
   return encryptedBytes;
 }
 
-function aesEncrypt (bytes, keyBytes, ivBytes) {
+function addPadding(bytes, blockSize) {
+  blockSize = blockSize || 16;
   var len = bytes.byteLength || bytes.length;
-  console.log(dT(), 'AES encrypt start', len/*, bytesToHex(keyBytes), bytesToHex(ivBytes)*/);
-
-  var needPadding = 16 - (len % 16);
-  if (needPadding > 0 && needPadding < 16) {
+  var needPadding = blockSize - (len % blockSize);
+  if (needPadding > 0 && needPadding < blockSize) {
     var padding = new Array(needPadding);
     (new SecureRandom()).nextBytes(padding);
 
@@ -255,6 +270,15 @@ function aesEncrypt (bytes, keyBytes, ivBytes) {
     }
   }
 
+  return bytes;
+}
+
+function aesEncryptSync (bytes, keyBytes, ivBytes) {
+  var len = bytes.byteLength || bytes.length;
+
+  // console.log(dT(), 'AES encrypt start', len/*, bytesToHex(keyBytes), bytesToHex(ivBytes)*/);
+  bytes = addPadding(bytes);
+
   var encryptedWords = CryptoJS.AES.encrypt(bytesToWords(bytes), bytesToWords(keyBytes), {
     iv: bytesToWords(ivBytes),
     padding: CryptoJS.pad.NoPadding,
@@ -262,15 +286,14 @@ function aesEncrypt (bytes, keyBytes, ivBytes) {
   }).ciphertext;
 
   var encryptedBytes = bytesFromWords(encryptedWords);
-
-  console.log(dT(), 'AES encrypt finish');
+  // console.log(dT(), 'AES encrypt finish');
 
   return encryptedBytes;
 }
 
-function aesDecrypt (encryptedBytes, keyBytes, ivBytes) {
-  // console.log('AES decrypt start', encryptedBytes.length/*, bytesToHex(keyBytes), bytesToHex(ivBytes)*/);
+function aesDecryptSync (encryptedBytes, keyBytes, ivBytes) {
 
+  // console.log(dT(), 'AES decrypt start', encryptedBytes.length);
   var decryptedWords = CryptoJS.AES.decrypt({ciphertext: bytesToWords(encryptedBytes)}, bytesToWords(keyBytes), {
     iv: bytesToWords(ivBytes),
     padding: CryptoJS.pad.NoPadding,
@@ -278,8 +301,7 @@ function aesDecrypt (encryptedBytes, keyBytes, ivBytes) {
   });
 
   var bytes = bytesFromWords(decryptedWords);
-
-  // console.log('AES decrypt finish');
+  // console.log(dT(), 'AES decrypt finish');
 
   return bytes;
 }

app/js/lib/crypto_worker.js

@@ -29,15 +29,15 @@ onmessage = function (e) {
       break;
 
     case 'sha1-hash':
-      result = sha1Hash(e.data.bytes);
+      result = sha1HashSync(e.data.bytes);
       break;
 
     case 'aes-encrypt':
-      result = aesEncrypt(e.data.bytes, e.data.keyBytes, e.data.ivBytes);
+      result = aesEncryptSync(e.data.bytes, e.data.keyBytes, e.data.ivBytes);
       break;
 
     case 'aes-decrypt':
-      result = aesDecrypt(e.data.encryptedBytes, e.data.keyBytes, e.data.ivBytes);
+      result = aesDecryptSync(e.data.encryptedBytes, e.data.keyBytes, e.data.ivBytes);
       break;
 
     default:

app/js/lib/mtproto.js

@@ -82,7 +82,7 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
 
       var buffer = RSAPublicKey.getBuffer();
 
-      var fingerprintBytes = sha1Hash(buffer).slice(-8);
+      var fingerprintBytes = sha1BytesSync(buffer).slice(-8);
       fingerprintBytes.reverse();
 
       publicKeysParsed[bytesToHex(fingerprintBytes)] = {
@@ -169,7 +169,11 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
 .factory('MtpAuthorizer', function (MtpDcConfigurator, MtpRsaKeysManager, MtpSecureRandom, MtpTimeManager, CryptoWorker, $http, $q, $timeout) {
 
   var chromeMatches = navigator.userAgent.match(/Chrome\/(\d+(\.\d+)?)/),
-      chromeVersion = chromeMatches && parseFloat(chromeMatches[1]) || false;
+      chromeVersion = chromeMatches && parseFloat(chromeMatches[1]) || false,
+      xhrSendBuffer = !('ArrayBufferView' in window) && (!chromeVersion || chromeVersion < 30);
+
+  delete $http.defaults.headers.post['Content-Type'];
+  delete $http.defaults.headers.common['Accept'];
 
   function mtpSendPlainRequest (dcID, requestBuffer) {
     var requestLength = requestBuffer.byteLength,
@@ -190,16 +194,10 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
     resultArray.set(headerArray);
     resultArray.set(requestArray, headerArray.length);
 
-    delete $http.defaults.headers.post['Content-Type'];
-    delete $http.defaults.headers.common['Accept'];
-
-    if (!('ArrayBufferView' in window) && (!chromeVersion || chromeVersion < 30)) {
-      resultArray = resultArray.buffer;
-    }
-
-    var requestPromise;
+    var requestData = xhrSendBuffer ? resultBuffer : resultArray,
+        requestPromise;
     try {
-      requestPromise =  $http.post('http://' + MtpDcConfigurator.chooseServer(dcID) + '/apiw1', resultArray, {
+      requestPromise =  $http.post('http://' + MtpDcConfigurator.chooseServer(dcID) + '/apiw1', requestData, {
         responseType: 'arraybuffer',
         transformRequest: null
       });
@@ -305,7 +303,7 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
       new_nonce: auth.newNonce
     }, 'P_Q_inner_data', 'DECRYPTED_DATA');
 
-    var dataWithHash = sha1Hash(data.getBuffer()).concat(data.getBytes());
+    var dataWithHash = sha1BytesSync(data.getBuffer()).concat(data.getBytes());
 
     var request = new TLSerialization({mtproto: true});
     request.storeMethod('req_DH_params', {
@@ -337,7 +335,7 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
       }
 
       if (response._ == 'server_DH_params_fail') {
-        var newNonceHash = sha1Hash(auth.newNonce).slice(-16)
+        var newNonceHash = sha1BytesSync(auth.newNonce).slice(-16);
         if (!bytesCmp (newNonceHash, response.new_nonce_hash)) {
           deferred.reject(new Error('server_DH_params_fail new_nonce_hash mismatch'));
           return false;
@@ -362,10 +360,10 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
   function mtpDecryptServerDhDataAnswer (auth, encryptedAnswer) {
     auth.localTime = tsNow();
 
-    auth.tmpAesKey = sha1Hash(auth.newNonce.concat(auth.serverNonce)).concat(sha1Hash(auth.serverNonce.concat(auth.newNonce)).slice(0, 12));
-    auth.tmpAesIv = sha1Hash(auth.serverNonce.concat(auth.newNonce)).slice(12).concat(sha1Hash([].concat(auth.newNonce, auth.newNonce)), auth.newNonce.slice(0, 4));
+    auth.tmpAesKey = sha1BytesSync(auth.newNonce.concat(auth.serverNonce)).concat(sha1BytesSync(auth.serverNonce.concat(auth.newNonce)).slice(0, 12));
+    auth.tmpAesIv = sha1BytesSync(auth.serverNonce.concat(auth.newNonce)).slice(12).concat(sha1BytesSync([].concat(auth.newNonce, auth.newNonce)), auth.newNonce.slice(0, 4));
 
-    var answerWithHash = aesDecrypt(encryptedAnswer, auth.tmpAesKey, auth.tmpAesIv);
+    var answerWithHash = aesDecryptSync(encryptedAnswer, auth.tmpAesKey, auth.tmpAesIv);
 
     var hash = answerWithHash.slice(0, 20);
     var answerWithPadding = answerWithHash.slice(20);
@@ -395,7 +393,7 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
 
     var offset = deserializer.getOffset();
 
-    if (!bytesCmp(hash, sha1Hash(answerWithPadding.slice(0, offset)))) {
+    if (!bytesCmp(hash, sha1BytesSync(answerWithPadding.slice(0, offset)))) {
       throw new Error('server_DH_inner_data SHA1-hash mismatch');
     }
 
@@ -420,9 +418,9 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
         g_b: gB,
       }, 'Client_DH_Inner_Data');
 
-      var dataWithHash = sha1Hash(data.getBuffer()).concat(data.getBytes());
+      var dataWithHash = sha1BytesSync(data.getBuffer()).concat(data.getBytes());
 
-      var encryptedData = aesEncrypt(dataWithHash, auth.tmpAesKey, auth.tmpAesIv);
+      var encryptedData = aesEncryptSync(dataWithHash, auth.tmpAesKey, auth.tmpAesIv);
 
       var request = new TLSerialization({mtproto: true});
       request.storeMethod('set_client_DH_params', {
@@ -451,14 +449,14 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
         }
 
         CryptoWorker.modPow(auth.gA, auth.b, auth.dhPrime).then(function (authKey) {
-          var authKeyHash = sha1Hash(authKey),
+          var authKeyHash = sha1BytesSync(authKey),
               authKeyAux  = authKeyHash.slice(0, 8),
               authKeyID   = authKeyHash.slice(-8);
 
           console.log(dT(), 'Got Set_client_DH_params_answer', response._);
           switch (response._) {
             case 'dh_gen_ok':
-              var newNonceHash1 = sha1Hash(auth.newNonce.concat([1], authKeyAux)).slice(-16);
+              var newNonceHash1 = sha1BytesSync(auth.newNonce.concat([1], authKeyAux)).slice(-16);
 
               if (!bytesCmp(newNonceHash1, response.new_nonce_hash1)) {
                 deferred.reject(new Error('Set_client_DH_params_answer new_nonce_hash1 mismatch'));
@@ -476,7 +474,7 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
               break;
 
             case 'dh_gen_retry':
-              var newNonceHash2 = sha1Hash(auth.newNonce.concat([2], authKeyAux)).slice(-16);
+              var newNonceHash2 = sha1BytesSync(auth.newNonce.concat([2], authKeyAux)).slice(-16);
               if (!bytesCmp(newNonceHash2, response.new_nonce_hash2)) {
                 deferred.reject(new Error('Set_client_DH_params_answer new_nonce_hash2 mismatch'));
                 return false;
@@ -485,7 +483,7 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
               return mtpSendSetClientDhParams(auth);
 
             case 'dh_gen_fail':
-              var newNonceHash3 = sha1Hash(auth.newNonce.concat([3], authKeyAux)).slice(-16);
+              var newNonceHash3 = sha1BytesSync(auth.newNonce.concat([3], authKeyAux)).slice(-16);
               if (!bytesCmp(newNonceHash3, response.new_nonce_hash3)) {
                 deferred.reject(new Error('Set_client_DH_params_answer new_nonce_hash3 mismatch'));
                 return false;
@@ -553,7 +551,11 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
       offline,
       offlineInited = false,
       chromeMatches = navigator.userAgent.match(/Chrome\/(\d+(\.\d+)?)/),
-      chromeVersion = chromeMatches && parseFloat(chromeMatches[1]) || false;
+      chromeVersion = chromeMatches && parseFloat(chromeMatches[1]) || false,
+      xhrSendBuffer = !('ArrayBufferView' in window) && (!chromeVersion || chromeVersion < 30);
+
+  delete $http.defaults.headers.post['Content-Type'];
+  delete $http.defaults.headers.common['Accept'];
 
   $rootScope.retryOnline = function () {
     $(document.body).trigger('online');
@@ -566,7 +568,9 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
     this.iii = iii++;
 
     this.authKey = authKey;
-    this.authKeyID = sha1Hash(authKey).slice(-8);
+    this.authKeyUint8 = convertToUint8Array(authKey);
+    this.authKeyBuffer = convertToArrayBuffer(authKey);
+    this.authKeyID = sha1BytesSync(authKey).slice(-8);
 
     this.serverSalt = serverSalt;
 
@@ -827,19 +831,47 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
   };
 
   MtpNetworker.prototype.getMsgKeyIv = function (msgKey, isOut) {
-    var authKey = this.authKey,
-        x = isOut ? 0 : 8;
-
-    var promises = {
-      sha1a: CryptoWorker.sha1Hash(msgKey.concat(authKey.slice(x, x + 32))),
-      sha1b: CryptoWorker.sha1Hash(authKey.slice(32 + x, 48 + x).concat(msgKey, authKey.slice(48 + x, 64 + x))),
-      sha1c: CryptoWorker.sha1Hash(authKey.slice(64 + x, 96 + x).concat(msgKey)),
-      sha1d: CryptoWorker.sha1Hash(msgKey.concat(authKey.slice(96 + x, 128 + x)))
-    };
+    var authKey = this.authKeyUint8,
+        x = isOut ? 0 : 8,
+        sha1aText = new Uint8Array(48),
+        sha1bText = new Uint8Array(48),
+        sha1cText = new Uint8Array(48),
+        sha1dText = new Uint8Array(48),
+        promises = {};
+
+    sha1aText.set(msgKey, 0);
+    sha1aText.set(authKey.subarray(x, x + 32), 16);
+    promises.sha1a = CryptoWorker.sha1Hash(sha1aText);
+
+    sha1bText.set(authKey.subarray(x + 32, x + 48), 0);
+    sha1bText.set(msgKey, 16);
+    sha1bText.set(authKey.subarray(x + 48, x + 64), 32);
+    promises.sha1b = CryptoWorker.sha1Hash(sha1bText);
+
+    sha1cText.set(authKey.subarray(x + 64, x + 96), 0);
+    sha1cText.set(msgKey, 32);
+    promises.sha1c = CryptoWorker.sha1Hash(sha1cText);
+
+    sha1dText.set(msgKey, 0);
+    sha1dText.set(authKey.subarray(x + 96, x + 128), 16);
+    promises.sha1d = CryptoWorker.sha1Hash(sha1dText);
 
     return $q.all(promises).then(function (result) {
-      var aesKey = result.sha1a.slice(0, 8).concat(result.sha1b.slice(8, 20), result.sha1c.slice(4, 16));
-      var aesIv  = result.sha1a.slice(8, 20).concat(result.sha1b.slice(0, 8), result.sha1c.slice(16, 20), result.sha1d.slice(0, 8));
+      var aesKey = new Uint8Array(32),
+          aesIv = new Uint8Array(32);
+          sha1a = new Uint8Array(result.sha1a),
+          sha1b = new Uint8Array(result.sha1b),
+          sha1c = new Uint8Array(result.sha1c),
+          sha1d = new Uint8Array(result.sha1d);
+
+      aesKey.set(sha1a.subarray(0, 8));
+      aesKey.set(sha1b.subarray(8, 20), 8);
+      aesKey.set(sha1c.subarray(4, 16), 20);
+
+      aesIv.set(sha1a.subarray(8, 20));
+      aesIv.set(sha1b.subarray(0, 8), 12);
+      aesIv.set(sha1c.subarray(16, 20), 20);
+      aesIv.set(sha1d.subarray(0, 8), 24);
 
       return [aesKey, aesIv];
     });
@@ -1076,14 +1108,14 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
   MtpNetworker.prototype.getEncryptedMessage = function (bytes) {
     var self = this;
 
-    console.log(dT(), 'Start encrypt', bytes.byteLength);
+    // console.log(dT(), 'Start encrypt', bytes.byteLength);
     return CryptoWorker.sha1Hash(bytes).then(function (bytesHash) {
-      console.log(dT(), 'after hash');
-      var msgKey = bytesHash.slice(-16);
+      // console.log(dT(), 'after hash');
+      var msgKey = new Uint8Array(bytesHash).subarray(4, 20);
       return self.getMsgKeyIv(msgKey, true).then(function (keyIv) {
-        console.log(dT(), 'after msg key iv');
+        // console.log(dT(), 'after msg key iv');
         return CryptoWorker.aesEncrypt(bytes, keyIv[0], keyIv[1]).then(function (encryptedBytes) {
-          console.log(dT(), 'Finish encrypt');
+          // console.log(dT(), 'Finish encrypt');
           return {
             bytes: encryptedBytes,
             msgKey: msgKey
@@ -1117,18 +1149,12 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
 
     return this.getEncryptedMessage(data.getBuffer()).then(function (encryptedResult) {
       // console.log(dT(), 'Got encrypted out message'/*, encryptedResult*/);
-      var request = new TLSerialization({startMaxLength: encryptedResult.bytes.length + 256});
+      var request = new TLSerialization({startMaxLength: encryptedResult.bytes.byteLength + 256});
       request.storeIntBytes(self.authKeyID, 64, 'auth_key_id');
       request.storeIntBytes(encryptedResult.msgKey, 128, 'msg_key');
       request.storeRawBytes(encryptedResult.bytes, 'encrypted_data');
 
-      delete $http.defaults.headers.post['Content-Type'];
-      delete $http.defaults.headers.common['Accept'];
-
-      var resultArray = request.getArray();
-      if (!('ArrayBufferView' in window) && (!chromeVersion || chromeVersion < 30)) {
-        resultArray = resultArray.buffer;
-      }
+      var requestData = xhrSendBuffer ? request.getBuffer() : request.getArray();
 
       var requestPromise;
       try {
@@ -1136,7 +1162,7 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
           responseType: 'arraybuffer',
           transformRequest: null
         });
-        requestPromise =  $http.post('http://' + MtpDcConfigurator.chooseServer(self.dcID) + '/apiw1', resultArray, options);
+        requestPromise =  $http.post('http://' + MtpDcConfigurator.chooseServer(self.dcID) + '/apiw1', requestData, options);
       } catch (e) {
         requestPromise = $q.reject(e);
       }
@@ -1172,32 +1198,29 @@ angular.module('izhukov.mtproto', ['izhukov.utils'])
 
     var deserializer = new TLDeserialization(responseBuffer);
 
-    var authKeyID = deserializer.fetchIntBytes(64, 'auth_key_id');
+    var authKeyID = deserializer.fetchIntBytes(64, false, 'auth_key_id');
     if (!bytesCmp(authKeyID, this.authKeyID)) {
       throw new Error('Invalid server auth_key_id: ' + bytesToHex(authKeyID));
     }
-    var msgKey = deserializer.fetchIntBytes(128, 'msg_key');
-
-    var dataLength = responseBuffer.byteLength - deserializer.getOffset();
-    var encryptedData = deserializer.fetchRawBytes(dataLength, 'encrypted_data');
+    var msgKey = deserializer.fetchIntBytes(128, true, 'msg_key'),
+        encryptedData = deserializer.fetchRawBytes(responseBuffer.byteLength - deserializer.getOffset(), true, 'encrypted_data');
 
     return this.getDecryptedMessage(msgKey, encryptedData).then(function (dataWithPadding) {
-      var buffer = bytesToArrayBuffer(dataWithPadding);
+      var deserializer = new TLDeserialization(dataWithPadding, {mtproto: true});
 
-      var deserializer = new TLDeserialization(buffer, {mtproto: true});
-
-      var salt = deserializer.fetchIntBytes(64, 'salt');
-      var sessionID = deserializer.fetchIntBytes(64, 'session_id');
+      var salt = deserializer.fetchIntBytes(64, false, 'salt');
+      var sessionID = deserializer.fetchIntBytes(64, false, 'session_id');
       var messageID = deserializer.fetchLong('message_id');
 
       var seqNo = deserializer.fetchInt('seq_no');
 
-      var messageBody = deserializer.fetchRawBytes(false, 'message_data');
+      var messageBody = deserializer.fetchRawBytes(false, true, 'message_data');
 
-      var offset = deserializer.getOffset();
+      var hashData = convertToUint8Array(dataWithPadding).subarray(0, deserializer.getOffset());
 
-      return CryptoWorker.sha1Hash(dataWithPadding.slice(0, offset)).then(function (dataHashed) {
-        if (!bytesCmp(msgKey, dataHashed.slice(-16))) {
+      return CryptoWorker.sha1Hash(hashData).then(function (dataHash) {
+        if (!bytesCmp(msgKey, bytesFromArrayBuffer(dataHash).slice(-16))) {
+          console.warn(msgKey, bytesFromArrayBuffer(dataHash));
           throw new Error('server msgKey mismatch');
         }
 

app/js/lib/ng_utils.js

@@ -500,18 +500,16 @@ angular.module('izhukov.utils', [])
       };
 
   if (navigator.mimeTypes['application/x-pnacl'] !== undefined) {
-    var listener = $('<div id="nacl_listener"><embed id="mtproto_crypto" width="0" height="0" src="nacl/mtproto_crypto.nmf" type="application/x-pnacl" /></div>').appendTo($('body'))[0];
+    var listener = $('<div id="nacl_listener"><embed id="mtproto_crypto" width="0" height="0" src="nacl/mtproto_crypto.nmf?'+Math.random()+'" type="application/x-pnacl" /></div>').appendTo($('body'))[0];
     listener.addEventListener('load', function (e) {
       aesNaClEmbed = listener.firstChild;
-      console.warn('NaCl ready', aesNaClEmbed);
+      console.log(dT(), 'NaCl ready');
     }, true);
     listener.addEventListener('message', function (e) {
-      console.log(e.data.result);
-      console.log(bytesFromArrayBuffer(e.data.result));
       finalizeTask(e.data.taskID, e.data.result);
     }, true);
     listener.addEventListener('error', function (e) {
-      console.error(e);
+      console.error('NaCl error', e);
     }, true);
   }
 
@@ -543,57 +541,49 @@ angular.module('izhukov.utils', [])
   return {
     sha1Hash: function (bytes) {
       if (useSha1Crypto) {
+        // We don't use buffer since typedArray.subarray(...).buffer gives the whole buffer and not sliced one. webCrypto.digest supports typed array
         var deferred = $q.defer(),
-            buffer = bytes instanceof ArrayBuffer
-              ? bytes
-              : bytesToArrayBuffer(bytes);
-
-        webCrypto.digest({name: 'SHA-1'}, buffer).then(function (digest) {
-          deferred.resolve(bytesFromArrayBuffer(digest));
+            bytesTyped = Array.isArray(bytes) ? convertToUint8Array(bytes) : bytes;
+        // console.log(dT(), 'Native sha1 start');
+        webCrypto.digest({name: 'SHA-1'}, bytesTyped).then(function (digest) {
+          // console.log(dT(), 'Native sha1 done');
+          deferred.resolve(digest);
         }, function  (e) {
           console.error('Crypto digest error', e);
           useSha1Crypto = false;
-          deferred.resolve(sha1Hash(bytes));
+          deferred.resolve(sha1HashSync(bytes));
         });
 
         return deferred.promise;
       }
-      if (worker && false) { // due overhead for data transfer
-        return performTaskWorker ('sha1-hash', {bytes: bytes});
-      }
       return $timeout(function () {
-        return sha1Hash(bytes);
+        return sha1HashSync(bytes);
       });
     },
     aesEncrypt: function (bytes, keyBytes, ivBytes) {
       if (aesNaClEmbed) {
+        // aesEncryptSync(bytes, keyBytes, ivBytes);
         return performTaskWorker('aes-encrypt', {
-          bytes: bytes,
-          keyBytes: bytesToArrayBuffer(keyBytes),
-          ivBytes: bytesToArrayBuffer(ivBytes)
-        }, aesNaClEmbed);
-      }
-      if (worker && false) { // due overhead for data transfer
-        return performTaskWorker('aes-encrypt', {
-          bytes: bytes,
-          keyBytes: keyBytes,
-          ivBytes: ivBytes
+          bytes: addPadding(convertToArrayBuffer(bytes)),
+          keyBytes: convertToArrayBuffer(keyBytes),
+          ivBytes: convertToArrayBuffer(ivBytes)
         }, aesNaClEmbed);
       }
       return $timeout(function () {
-        return aesEncrypt(bytes, keyBytes, ivBytes);
+        return convertToArrayBuffer(aesEncryptSync(bytes, keyBytes, ivBytes));
       });
     },
     aesDecrypt: function (encryptedBytes, keyBytes, ivBytes) {
-      if (worker && false) { // due overhead for data transfer
+      if (aesNaClEmbed) {
+        // aesDecryptSync(encryptedBytes, keyBytes, ivBytes);
         return performTaskWorker('aes-decrypt', {
-          encryptedBytes: encryptedBytes,
-          keyBytes: keyBytes,
-          ivBytes: ivBytes
-        });
+          encryptedBytes: addPadding(convertToArrayBuffer(encryptedBytes)),
+          keyBytes: convertToArrayBuffer(keyBytes),
+          ivBytes: convertToArrayBuffer(ivBytes)
+        }, aesNaClEmbed);
       }
       return $timeout(function () {
-        return aesDecrypt(encryptedBytes, keyBytes, ivBytes);
+        return convertToArrayBuffer(aesDecryptSync(encryptedBytes, keyBytes, ivBytes));
       });
     },
     factorize: function (bytes) {

app/js/lib/tl_utils.js

@@ -170,6 +170,9 @@ TLSerialization.prototype.storeBytes = function (bytes, field) {
 }
 
 TLSerialization.prototype.storeIntBytes = function (bytes, bits, field) {
+  if (bytes instanceof ArrayBuffer) {
+    bytes = new Uint8Array(bytes);
+  }
   var len = bytes.length;
   if ((bits % 32) || (len * 8) != bits) {
     throw new Error('Invalid bits: ' + bits + ', ' + bytes.length);
@@ -178,13 +181,15 @@ TLSerialization.prototype.storeIntBytes = function (bytes, bits, field) {
   this.debug && console.log('>>>', bytesToHex(bytes), (field || '') + ':int' + bits);
   this.checkLength(len);
 
-  for (var i = 0; i < len; i++) {
-    this.byteView[this.offset++] = bytes[i];
-  }
+  this.byteView.set(bytes, this.offset);
+  this.offset += len;
 };
 
 TLSerialization.prototype.storeRawBytes = function (bytes, field) {
-  var len = bytes.byteLength || bytes.length;
+  if (bytes instanceof ArrayBuffer) {
+    bytes = new Uint8Array(bytes);
+  }
+  var len = bytes.length;
 
   this.debug && console.log('>>>', bytesToHex(bytes), (field || ''));
   this.checkLength(len);
@@ -412,12 +417,18 @@ TLDeserialization.prototype.fetchBytes = function (field) {
   return bytes;
 }
 
-TLDeserialization.prototype.fetchIntBytes = function (bits, field) {
+TLDeserialization.prototype.fetchIntBytes = function (bits, typed, field) {
   if (bits % 32) {
     throw new Error('Invalid bits: ' + bits);
   }
 
   var len = bits / 8;
+  if (typed) {
+    var result = this.byteView.subarray(this.offset, this.offset + len);
+    this.offset += len;
+    return result;
+  }
+
   var bytes = [];
   for (var i = 0; i < len; i++) {
     bytes.push(this.byteView[this.offset++]);
@@ -429,11 +440,18 @@ TLDeserialization.prototype.fetchIntBytes = function (bits, field) {
 };
 
 
-TLDeserialization.prototype.fetchRawBytes = function (len, field) {
+TLDeserialization.prototype.fetchRawBytes = function (len, typed, field) {
   if (len === false) {
     len = this.readInt((field || '') + '_length');
   }
 
+  if (typed) {
+    var bytes = new Uint8Array(len);
+    bytes.set(this.byteView.subarray(this.offset, this.offset + len));
+    this.offset += len;
+    return bytes;
+  }
+
   var bytes = [];
   for (var i = 0; i < len; i++) {
     bytes.push(this.byteView[this.offset++]);
@@ -448,9 +466,9 @@ TLDeserialization.prototype.fetchObject = function (type, field) {
   switch (type) {
     case 'int':    return this.fetchInt(field);
     case 'long':   return this.fetchLong(field);
-    case 'int128': return this.fetchIntBytes(128, field);
-    case 'int256': return this.fetchIntBytes(256, field);
-    case 'int512': return this.fetchIntBytes(512, field);
+    case 'int128': return this.fetchIntBytes(128, false, field);
+    case 'int256': return this.fetchIntBytes(256, false, field);
+    case 'int512': return this.fetchIntBytes(512, false, field);
     case 'string': return this.fetchString(field);
     case 'bytes':  return this.fetchBytes(field);
     case 'double': return this.fetchDouble(field);

app/nacl/Makefile

@@ -48,16 +48,7 @@ clean:
 
 mtproto_crypto.bc: mtproto_crypto.cc aes_core.c aes_ige.c aes_misc.c
 	$(PNACL_CXX) -o $@ $^ -O2 $(CXXFLAGS) $(LDFLAGS)
+	# $(PNACL_CXX) -g -o $@ $^ $(CXXFLAGS) $(LDFLAGS)
 
 mtproto_crypto.pexe: mtproto_crypto.bc
 	$(PNACL_FINALIZE) -o $@ $<
-
-
-#
-# Makefile target to run the SDK's simple HTTP server and serve this example.
-#
-HTTPD_PY := python $(NACL_SDK_ROOT)/tools/httpd.py
-
-.PHONY: serve
-serve: all
-	$(HTTPD_PY) -C $(CURDIR)

app/nacl/mtproto_crypto.cc

@@ -61,11 +61,6 @@ class MtprotoCryptoInstance : public pp::Instance {
   /// @param[in] var_message The message posted by the browser.
   virtual void HandleMessage(const pp::Var& var_message) {
 
-    // if (1) {
-    //   PostMessage(var_message);
-    //   return;
-    // }
-
     if (!var_message.is_dictionary()) {
       return;
     }
@@ -80,7 +75,7 @@ class MtprotoCryptoInstance : public pp::Instance {
 
     int32_t intTaskID = varTaskID.AsInt();
     std::string strTask = varTask.AsString();
-    pp::Var varResult;// = pp::Var::Var();
+    pp::Var varResult;
 
     if (strTask == "aes-encrypt") {
       pp::Var varData = request.Get(pp::Var::Var("bytes"));
@@ -95,21 +90,42 @@ class MtprotoCryptoInstance : public pp::Instance {
       pp::VarArrayBuffer abKey = pp::VarArrayBuffer::VarArrayBuffer(varKey);
       pp::VarArrayBuffer abIv = pp::VarArrayBuffer::VarArrayBuffer(varIv);
 
-      int length = abData.ByteLength();
       char* what = static_cast<char*>(abData.Map());
       char* keyBuff = static_cast<char*>(abKey.Map());
       char* ivBuff = static_cast<char*>(abIv.Map());
+      int length = abData.ByteLength();
 
       AES_KEY akey;
       AES_set_encrypt_key((const unsigned char *) keyBuff, 32 * 8, &akey);
+      AES_ige_encrypt((const unsigned char *)what, (unsigned char *)what, length, &akey, (unsigned char *)ivBuff, AES_ENCRYPT);
+
+      varResult = abData;
+
+    }
+    else if (strTask == "aes-decrypt") {
+      pp::Var varData = request.Get(pp::Var::Var("encryptedBytes"));
+      pp::Var varKey = request.Get(pp::Var::Var("keyBytes"));
+      pp::Var varIv = request.Get(pp::Var::Var("ivBytes"));
+
+      if (!varData.is_array_buffer() || !varKey.is_array_buffer() || !varIv.is_array_buffer()) {
+        return;
+      }
+
+      pp::VarArrayBuffer abData = pp::VarArrayBuffer::VarArrayBuffer(varData);
+      pp::VarArrayBuffer abKey = pp::VarArrayBuffer::VarArrayBuffer(varKey);
+      pp::VarArrayBuffer abIv = pp::VarArrayBuffer::VarArrayBuffer(varIv);
+
+      char* what = static_cast<char*>(abData.Map());
+      char* keyBuff = static_cast<char*>(abKey.Map());
+      char* ivBuff = static_cast<char*>(abIv.Map());
+      int length = abData.ByteLength();
+
+      AES_KEY akey;
+      AES_set_decrypt_key((const unsigned char *) keyBuff, 32 * 8, &akey);
       AES_ige_encrypt((const unsigned char *)what, (unsigned char *)what, length, &akey, (unsigned char *)ivBuff, AES_DECRYPT);
 
-      // varResult = pp::Var::Var(what);
-      // varResult = pp::VarArrayBuffer::VarArrayBuffer(pp::Var::Var(what));
-      abData.Unmap();
       varResult = abData;
-      // varResult = pp::VarArrayBuffer::VarArrayBuffer();
-      // pp::VarArrayBuffer varResult(what);
+
     } else {
       varResult = pp::Var::Var();
     }
@@ -119,13 +135,6 @@ class MtprotoCryptoInstance : public pp::Instance {
     response.Set(pp::Var::Var("result"), varResult);
 
     PostMessage(response);
-
-    // std::string message = var_message.AsString();
-    // pp::Var var_reply;
-    // if (message == kHelloString) {
-    //   var_reply = pp::Var(kReplyString);
-    //   PostMessage(var_reply);
-    // }
   }
 };
 

app/nacl/mtproto_crypto.nmf

@@ -2,7 +2,8 @@
   "program": {
     "portable": {
       "pnacl-translate": {
-        "url": "mtproto_crypto.pexe?13"
+        "url": "mtproto_crypto.pexe?55",
+        "optlevel": 2
       }
     }
   }

server.js

@@ -89,7 +89,8 @@ StaticServlet.MimeMap = {
   'svg':  'image/svg+xml',
   'wav':  'audio/wav',
   'ico':  'image/vnd.microsoft.icon',
-  'pexe': 'application/x-pnacl'
+  'pexe': 'application/x-pnacl',
+  'bc': 'application/x-pnacl'
 };
 
 StaticServlet.prototype.handleRequest = function(req, res) {