/* [MS-OFFCRYPTO] 2.3.6.1 RC4 Encryption Header
978578
function parse_RC4Header(blob, length) {
	var o = {};
	var vers = o.EncryptionVersionInfo = parse_CRYPTOVersion(blob, 4); length -= 4;
	if(vers.Major != 1 || vers.Minor != 1) throw 'unrecognized version code ' + vers.Major + ' : ' + vers.Minor;
	o.Salt = blob.read_shift(16);
	o.EncryptedVerifier = blob.read_shift(16);
	o.EncryptedVerifierHash = blob.read_shift(16);
	return o;
}
374905
function RSADecryptOAEP(ctext, hash) {
  var c = parseBigInt(ctext, 16);
  var m = this.doPrivate(c);
  if(m == null) return null;
  return oaep_unpad(m, (this.n.bitLength()+7)>>3, hash);
}
314030
public void encryptBlock(byte[] data, int offset, byte[] dest, int destOffset) {
        // w128_t x;
        // x.q[0] = ((uint64_t *) blk)[0];
        // x.q[1] = ((uint64_t *) blk)[1];
        Kuz128 x = new Kuz128();
        x.setQ(0, ByteStrings.bytesToLong(data, offset));
        x.setQ(1, ByteStrings.bytesToLong(data, offset + 8));

        for (int i = 0; i < 9; i++) {
            // x.q[0] ^= key->k[i].q[0];
            // x.q[1] ^= key->k[i].q[1];
            x.setQ(0, x.getQ(0) ^ key.getK()[i].getQ(0));
            x.setQ(1, x.getQ(1) ^ key.getK()[i].getQ(1));

            for (int j = 0; j < 16; j++) {
                // x.b[j] = kuz_pi[x.b[j]];
                x.getB()[j] = KuznechikTables.kuz_pi[(x.getB()[j] & 0xFF)];
            }
            // kuz_l(&x);
            KuznechikMath.kuz_l(x);
        }

        // ((uint64_t *) blk)[0] = x.q[0] ^ key->k[9].q[0];
        // ((uint64_t *) blk)[1] = x.q[1] ^ key->k[9].q[1];
        ByteStrings.write(dest, destOffset, ByteStrings.longToBytes(x.getQ(0) ^ key.getK()[9].getQ(0)), 0, 8);
        ByteStrings.write(dest, destOffset + 8, ByteStrings.longToBytes(x.getQ(1) ^ key.getK()[9].getQ(1)), 0, 8);
    }
32650
function decryptRaw (buffer, passphrase, progressCallback, scryptParams) {
  // 39 bytes: 2 bytes prefix, 37 bytes payload
  if (buffer.length !== 39) throw new Error('Invalid BIP38 data length')
  if (buffer.readUInt8(0) !== 0x01) throw new Error('Invalid BIP38 prefix')
  scryptParams = scryptParams || SCRYPT_PARAMS

  // check if BIP38 EC multiply
  var type = buffer.readUInt8(1)
  if (type === 0x43) return decryptECMult(buffer, passphrase, progressCallback, scryptParams)
  if (type !== 0x42) throw new Error('Invalid BIP38 type')

  passphrase = Buffer.from(passphrase, 'utf8')

  var flagByte = buffer.readUInt8(2)
  var compressed = flagByte === 0xe0
  if (!compressed && flagByte !== 0xc0) throw new Error('Invalid BIP38 compression flag')

  var N = scryptParams.N
  var r = scryptParams.r
  var p = scryptParams.p

  var salt = buffer.slice(3, 7)
  var scryptBuf = scrypt(passphrase, salt, N, r, p, 64, progressCallback)
  var derivedHalf1 = scryptBuf.slice(0, 32)
  var derivedHalf2 = scryptBuf.slice(32, 64)

  var privKeyBuf = buffer.slice(7, 7 + 32)
  var decipher = aes.createDecipheriv('aes-256-ecb', derivedHalf2, NULL)
  decipher.setAutoPadding(false)
  decipher.end(privKeyBuf)

  var plainText = decipher.read()
  var privateKey = xor(derivedHalf1, plainText)

  // verify salt matches address
  var d = BigInteger.fromBuffer(privateKey)
  var address = getAddress(d, compressed)
  var checksum = hash256(address).slice(0, 4)
  assert.deepEqual(salt, checksum)

  return {
    privateKey: privateKey,
    compressed: compressed
  }
}
1162023
function parse_encrypted(&$p)
    {
        $struct = $p['structure'];

        // S/MIME
        if ($p['mimetype'] == 'application/pkcs7-mime') {
            $this->parse_smime_encrypted($p);
        }
        // PGP/MIME: RFC3156
        // The multipart/encrypted MUST consist of exactly two parts. The first
        // MIME body part must have a content type of "application/pgp-encrypted".
        // This body contains the control information.
        // The second MIME body part MUST contain the actual encrypted data.  It
        // must be labeled with a content type of "application/octet-stream".
        else if (count($struct->parts) == 2
            && $struct->parts[0] && $struct->parts[0]->mimetype == 'application/pgp-encrypted'
            && $struct->parts[1] && $struct->parts[1]->mimetype == 'application/octet-stream'
        ) {
            $this->parse_pgp_encrypted($p);
        }
    }
1112710
def _add_header_client_encryption_key(api_context, key, custom_headers):
    

    public_key_server = api_context.installation_context.public_key_server
    key_cipher = PKCS1_v1_5_Cipher.new(public_key_server)
    key_encrypted = key_cipher.encrypt(key)
    key_encrypted_base64 = base64.b64encode(key_encrypted).decode()
    custom_headers[_HEADER_CLIENT_ENCRYPTION_KEY] = key_encrypted_base64
99006
private void decodeAuthorizationHeader(String authString, StringBuilder userID, StringBuilder password) {
        userID.setLength(0);
        password.setLength(0);
        if (!Utils.isEmpty(authString) && authString.toLowerCase().startsWith("basic ")) {
            String decoded = Utils.base64ToString(authString.substring("basic ".length()));
            int inx = decoded.indexOf(':');
            if (inx < 0) {
                userID.append(decoded);
            } else {
                userID.append(decoded.substring(0, inx));
                password.append(decoded.substring(inx + 1));
            }
        }
    }
369841
def encrypt(self, serialized):
        

        fernet = Fernet(self.encryption_cipher_key)
        return fernet.encrypt(serialized)
310209
function _crypt($text, $mode)
    {
        if ( CRYPT_RC4_MODE == CRYPT_RC4_MODE_MCRYPT ) {
            $keyStream = $mode == CRYPT_RC4_ENCRYPT ? 'encryptStream' : 'decryptStream';

            if ($this->$keyStream === false) {
                $this->$keyStream = mcrypt_module_open($this->mode, '', MCRYPT_MODE_STREAM, '');
                mcrypt_generic_init($this->$keyStream, $this->key, '');
            } else if (!$this->continuousBuffer) {
                mcrypt_generic_init($this->$keyStream, $this->key, '');
            }
            $newText = mcrypt_generic($this->$keyStream, $text);
            if (!$this->continuousBuffer) {
                mcrypt_generic_deinit($this->$keyStream);
            }

            return $newText;
        }

        if ($this->encryptStream === false) {
            $this->setKey($this->key);
        }

        switch ($mode) {
            case CRYPT_RC4_ENCRYPT:
                $keyStream = $this->encryptStream;
                list($i, $j) = $this->encryptIndex;
                break;
            case CRYPT_RC4_DECRYPT:
                $keyStream = $this->decryptStream;
                list($i, $j) = $this->decryptIndex;
        }

        $newText = '';
        for ($k = 0; $k < strlen($text); $k++) {
            $i = ($i + 1) & 255;
            $j = ($j + $keyStream[$i]) & 255;
            $temp = $keyStream[$i];
            $keyStream[$i] = $keyStream[$j];
            $keyStream[$j] = $temp;
            $temp = $keyStream[($keyStream[$i] + $keyStream[$j]) & 255];
            $newText.= chr(ord($text[$k]) ^ $temp);
        }

        if ($this->continuousBuffer) {
            switch ($mode) {
                case CRYPT_RC4_ENCRYPT:
                    $this->encryptStream = $keyStream;
                    $this->encryptIndex = array($i, $j);
                    break;
                case CRYPT_RC4_DECRYPT:
                    $this->decryptStream = $keyStream;
                    $this->decryptIndex = array($i, $j);
            }
        }

        return $newText;
    }
1291212
function decrypt(data) {
    return Promise.resolve().then(function() {
        var stm = new BinaryStream(data);
        var buffers = [];
        var blockIndex = 0, blockLength = 0, blockHash, totalLength = 0;

        var next = function() {
            blockIndex = stm.getUint32(true);
            blockHash = stm.readBytes(32);
            blockLength = stm.getUint32(true);
            if (blockLength > 0) {
                totalLength += blockLength;
                var blockData = stm.readBytes(blockLength);
                return CryptoEngine.sha256(blockData).then(function(calculatedHash) {
                    if (!ByteUtils.arrayBufferEquals(calculatedHash, blockHash)) {
                        throw new KdbxError(Consts.ErrorCodes.FileCorrupt, 'invalid hash block');
                    } else {
                        buffers.push(blockData);
                        return next();
                    }
                });
            } else {
                var ret = new Uint8Array(totalLength);
                var offset = 0;
                for (var i = 0; i < buffers.length; i++) {
                    ret.set(new Uint8Array(buffers[i]), offset);
                    offset += buffers[i].byteLength;
                }
                return ret.buffer;
            }
        };
        return next();
    });
}
389608
function encrypt(data, key) {
    return Promise.resolve().then(function() {
        var bytesLeft = data.byteLength;
        var currentOffset = 0, blockIndex = 0, totalLength = 0;
        var buffers = [];

        var next = function() {
            var blockLength = Math.min(BlockSize, bytesLeft);
            bytesLeft -= blockLength;

            var blockData = data.slice(currentOffset, currentOffset + blockLength);
            return getBlockHmac(key, blockIndex, blockLength, blockData).then(function(blockHash) {
                var blockBuffer = new ArrayBuffer(32 + 4);
                var stm = new BinaryStream(blockBuffer);
                stm.writeBytes(blockHash);
                stm.setUint32(blockLength, true);

                buffers.push(blockBuffer);
                totalLength += blockBuffer.byteLength;

                if (blockData.byteLength > 0) {
                    buffers.push(blockData);
                    totalLength += blockData.byteLength;
                    blockIndex++;
                    currentOffset += blockLength;
                    return next();
                } else {
                    var ret = new Uint8Array(totalLength);
                    var offset = 0;
                    for (var i = 0; i < buffers.length; i++) {
                        ret.set(new Uint8Array(buffers[i]), offset);
                        offset += buffers[i].byteLength;
                    }
                    return ret.buffer;
                }
            });
        };
        return next();
    });
}
523868
function (bytesIn, mode, key, iv)
	{
		var size = key.length;
		if(iv.length%16)
		{
			throw 'iv length must be 128 bits.';
		}
		// the AES input/output
		var byteArray = [];
		var input = [];
		var output = [];
		var ciphertext = [];
		var cipherOut = [];
		// char firstRound
		var firstRound = true;
		if (mode == this.modeOfOperation.CBC)
			this.padBytesIn(bytesIn);
		if (bytesIn !== null)
		{
			for (var j = 0;j < Math.ceil(bytesIn.length/16); j++)
			{
				var start = j*16;
				var end = j*16+16;
				if(j*16+16 > bytesIn.length)
					end = bytesIn.length;
				byteArray = this.getBlock(bytesIn,start,end,mode);
				if (mode == this.modeOfOperation.CFB)
				{
					if (firstRound)
					{
						output = this.aes.encrypt(iv, key, size);
						firstRound = false;
					}
					else
						output = this.aes.encrypt(input, key, size);
					for (var i = 0; i < 16; i++)
						ciphertext[i] = byteArray[i] ^ output[i];
					for(var k = 0;k < end-start;k++)
						cipherOut.push(ciphertext[k]);
					input = ciphertext;
				}
				else if (mode == this.modeOfOperation.OFB)
				{
					if (firstRound)
					{
						output = this.aes.encrypt(iv, key, size);
						firstRound = false;
					}
					else
						output = this.aes.encrypt(input, key, size);
					for (var i = 0; i < 16; i++)
						ciphertext[i] = byteArray[i] ^ output[i];
					for(var k = 0;k < end-start;k++)
						cipherOut.push(ciphertext[k]);
					input = output;
				}
				else if (mode == this.modeOfOperation.CBC)
				{
					for (var i = 0; i < 16; i++)
						input[i] = byteArray[i] ^ ((firstRound) ? iv[i] : ciphertext[i]);
					firstRound = false;
					ciphertext = this.aes.encrypt(input, key, size);
					// always 16 bytes because of the padding for CBC
					for(var k = 0;k < 16;k++)
						cipherOut.push(ciphertext[k]);
				}
			}
		}
		return cipherOut;
	}
277366
function RSADecryptPublic(ctext) {
  var c = parseBigInt(ctext, 16);
  var m = this.doPublic(c);
  if(m == null) return null;
  return pkcs1unpad2(m, (this.n.bitLength()+7)>>3);
}
930806
def encrypt(api_context, request_bytes, custom_headers):
    

    key = Random.get_random_bytes(_AES_KEY_SIZE)
    iv = Random.get_random_bytes(_BLOCK_SIZE)
    _add_header_client_encryption_key(api_context, key, custom_headers)
    _add_header_client_encryption_iv(iv, custom_headers)
    request_bytes = _encrypt_request_bytes(request_bytes, key, iv)
    _add_header_client_encryption_hmac(request_bytes, key, iv, custom_headers)

    return request_bytes
533876
def _add_header_client_encryption_hmac(request_bytes, key, iv, custom_headers):
    

    hashed = hmac.new(key, iv + request_bytes, sha1)
    hashed_base64 = base64.b64encode(hashed.digest()).decode()
    custom_headers[_HEADER_CLIENT_ENCRYPTION_HMAC] = hashed_base64
192765
private static function _des($key, $message, $encrypt, $mode=0, $iv=null) {
      //declaring this locally speeds things up a bit
      $spfunction1 = array (0x1010400,0,0x10000,0x1010404,0x1010004,0x10404,0x4,0x10000,0x400,0x1010400,0x1010404,0x400,0x1000404,0x1010004,0x1000000,0x4,0x404,0x1000400,0x1000400,0x10400,0x10400,0x1010000,0x1010000,0x1000404,0x10004,0x1000004,0x1000004,0x10004,0,0x404,0x10404,0x1000000,0x10000,0x1010404,0x4,0x1010000,0x1010400,0x1000000,0x1000000,0x400,0x1010004,0x10000,0x10400,0x1000004,0x400,0x4,0x1000404,0x10404,0x1010404,0x10004,0x1010000,0x1000404,0x1000004,0x404,0x10404,0x1010400,0x404,0x1000400,0x1000400,0,0x10004,0x10400,0,0x1010004);
      $spfunction2 = array (-0x7fef7fe0,-0x7fff8000,0x8000,0x108020,0x100000,0x20,-0x7fefffe0,-0x7fff7fe0,-0x7fffffe0,-0x7fef7fe0,-0x7fef8000,-0x80000000,-0x7fff8000,0x100000,0x20,-0x7fefffe0,0x108000,0x100020,-0x7fff7fe0,0,-0x80000000,0x8000,0x108020,-0x7ff00000,0x100020,-0x7fffffe0,0,0x108000,0x8020,-0x7fef8000,-0x7ff00000,0x8020,0,0x108020,-0x7fefffe0,0x100000,-0x7fff7fe0,-0x7ff00000,-0x7fef8000,0x8000,-0x7ff00000,-0x7fff8000,0x20,-0x7fef7fe0,0x108020,0x20,0x8000,-0x80000000,0x8020,-0x7fef8000,0x100000,-0x7fffffe0,0x100020,-0x7fff7fe0,-0x7fffffe0,0x100020,0x108000,0,-0x7fff8000,0x8020,-0x80000000,-0x7fefffe0,-0x7fef7fe0,0x108000);
      $spfunction3 = array (0x208,0x8020200,0,0x8020008,0x8000200,0,0x20208,0x8000200,0x20008,0x8000008,0x8000008,0x20000,0x8020208,0x20008,0x8020000,0x208,0x8000000,0x8,0x8020200,0x200,0x20200,0x8020000,0x8020008,0x20208,0x8000208,0x20200,0x20000,0x8000208,0x8,0x8020208,0x200,0x8000000,0x8020200,0x8000000,0x20008,0x208,0x20000,0x8020200,0x8000200,0,0x200,0x20008,0x8020208,0x8000200,0x8000008,0x200,0,0x8020008,0x8000208,0x20000,0x8000000,0x8020208,0x8,0x20208,0x20200,0x8000008,0x8020000,0x8000208,0x208,0x8020000,0x20208,0x8,0x8020008,0x20200);
      $spfunction4 = array (0x802001,0x2081,0x2081,0x80,0x802080,0x800081,0x800001,0x2001,0,0x802000,0x802000,0x802081,0x81,0,0x800080,0x800001,0x1,0x2000,0x800000,0x802001,0x80,0x800000,0x2001,0x2080,0x800081,0x1,0x2080,0x800080,0x2000,0x802080,0x802081,0x81,0x800080,0x800001,0x802000,0x802081,0x81,0,0,0x802000,0x2080,0x800080,0x800081,0x1,0x802001,0x2081,0x2081,0x80,0x802081,0x81,0x1,0x2000,0x800001,0x2001,0x802080,0x800081,0x2001,0x2080,0x800000,0x802001,0x80,0x800000,0x2000,0x802080);
      $spfunction5 = array (0x100,0x2080100,0x2080000,0x42000100,0x80000,0x100,0x40000000,0x2080000,0x40080100,0x80000,0x2000100,0x40080100,0x42000100,0x42080000,0x80100,0x40000000,0x2000000,0x40080000,0x40080000,0,0x40000100,0x42080100,0x42080100,0x2000100,0x42080000,0x40000100,0,0x42000000,0x2080100,0x2000000,0x42000000,0x80100,0x80000,0x42000100,0x100,0x2000000,0x40000000,0x2080000,0x42000100,0x40080100,0x2000100,0x40000000,0x42080000,0x2080100,0x40080100,0x100,0x2000000,0x42080000,0x42080100,0x80100,0x42000000,0x42080100,0x2080000,0,0x40080000,0x42000000,0x80100,0x2000100,0x40000100,0x80000,0,0x40080000,0x2080100,0x40000100);
      $spfunction6 = array (0x20000010,0x20400000,0x4000,0x20404010,0x20400000,0x10,0x20404010,0x400000,0x20004000,0x404010,0x400000,0x20000010,0x400010,0x20004000,0x20000000,0x4010,0,0x400010,0x20004010,0x4000,0x404000,0x20004010,0x10,0x20400010,0x20400010,0,0x404010,0x20404000,0x4010,0x404000,0x20404000,0x20000000,0x20004000,0x10,0x20400010,0x404000,0x20404010,0x400000,0x4010,0x20000010,0x400000,0x20004000,0x20000000,0x4010,0x20000010,0x20404010,0x404000,0x20400000,0x404010,0x20404000,0,0x20400010,0x10,0x4000,0x20400000,0x404010,0x4000,0x400010,0x20004010,0,0x20404000,0x20000000,0x400010,0x20004010);
      $spfunction7 = array (0x200000,0x4200002,0x4000802,0,0x800,0x4000802,0x200802,0x4200800,0x4200802,0x200000,0,0x4000002,0x2,0x4000000,0x4200002,0x802,0x4000800,0x200802,0x200002,0x4000800,0x4000002,0x4200000,0x4200800,0x200002,0x4200000,0x800,0x802,0x4200802,0x200800,0x2,0x4000000,0x200800,0x4000000,0x200800,0x200000,0x4000802,0x4000802,0x4200002,0x4200002,0x2,0x200002,0x4000000,0x4000800,0x200000,0x4200800,0x802,0x200802,0x4200800,0x802,0x4000002,0x4200802,0x4200000,0x200800,0,0x2,0x4200802,0,0x200802,0x4200000,0x800,0x4000002,0x4000800,0x800,0x200002);
      $spfunction8 = array (0x10001040,0x1000,0x40000,0x10041040,0x10000000,0x10001040,0x40,0x10000000,0x40040,0x10040000,0x10041040,0x41000,0x10041000,0x41040,0x1000,0x40,0x10040000,0x10000040,0x10001000,0x1040,0x41000,0x40040,0x10040040,0x10041000,0x1040,0,0,0x10040040,0x10000040,0x10001000,0x41040,0x40000,0x41040,0x40000,0x10041000,0x1000,0x40,0x10040040,0x1000,0x41040,0x10001000,0x40,0x10000040,0x10040000,0x10040040,0x10000000,0x40000,0x10001040,0,0x10041040,0x40040,0x10000040,0x10040000,0x10001000,0x10001040,0,0x10041040,0x41000,0x41000,0x1040,0x1040,0x40040,0x10000000,0x10041000);
      $masks = array (4294967295,2147483647,1073741823,536870911,268435455,134217727,67108863,33554431,16777215,8388607,4194303,2097151,1048575,524287,262143,131071,65535,32767,16383,8191,4095,2047,1023,511,255,127,63,31,15,7,3,1,0);

      //create the 16 or 48 subkeys we will need
      $keys = self::_createKeys ($key);
      $m=0;
      $len = strlen($message);
      $chunk = 0;
      //set up the loops for single and triple des
      $iterations = ((count($keys) == 32) ? 3 : 9); //single or triple des
      if ($iterations == 3) {$looping = (($encrypt) ? array (0, 32, 2) : array (30, -2, -2));}
      else {$looping = (($encrypt) ? array (0, 32, 2, 62, 30, -2, 64, 96, 2) : array (94, 62, -2, 32, 64, 2, 30, -2, -2));}

      $message .= (chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0) . chr(0)); //pad the message out with null bytes
      //store the result here
      $result = "";
      $tempresult = "";

      if ($mode == 1) { //CBC mode
        $cbcleft = (ord($iv{$m++}) << 24) | (ord($iv{$m++}) << 16) | (ord($iv{$m++}) << 8) | ord($iv{$m++});
        $cbcright = (ord($iv{$m++}) << 24) | (ord($iv{$m++}) << 16) | (ord($iv{$m++}) << 8) | ord($iv{$m++});
        $m=0;
      }

      //loop through each 64 bit chunk of the message
      while ($m < $len) {
        $left = (ord($message{$m++}) << 24) | (ord($message{$m++}) << 16) | (ord($message{$m++}) << 8) | ord($message{$m++});
        $right = (ord($message{$m++}) << 24) | (ord($message{$m++}) << 16) | (ord($message{$m++}) << 8) | ord($message{$m++});

        //for Cipher Block Chaining mode, xor the message with the previous result
        if ($mode == 1) {if ($encrypt) {$left ^= $cbcleft; $right ^= $cbcright;} else {$cbcleft2 = $cbcleft; $cbcright2 = $cbcright; $cbcleft = $left; $cbcright = $right;}}

        //first each 64 but chunk of the message must be permuted according to IP
        $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);
        $temp = (($left >> 16 & $masks[16]) ^ $right) & 0x0000ffff; $right ^= $temp; $left ^= ($temp << 16);
        $temp = (($right >> 2 & $masks[2]) ^ $left) & 0x33333333; $left ^= $temp; $right ^= ($temp << 2);
        $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);
        $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);

        $left = (($left << 1) | ($left >> 31 & $masks[31]));
        $right = (($right << 1) | ($right >> 31 & $masks[31]));

        //do this either 1 or 3 times for each chunk of the message
        for ($j=0; $j<$iterations; $j+=3) {
          $endloop = $looping[$j+1];
          $loopinc = $looping[$j+2];
          //now go through and perform the encryption or decryption
          for ($i=$looping[$j]; $i!=$endloop; $i+=$loopinc) { //for efficiency
            $right1 = $right ^ $keys[$i];
            $right2 = (($right >> 4 & $masks[4]) | ($right << 28)) ^ $keys[$i+1];
            //the result is attained by passing these bytes through the S selection functions
            $temp = $left;
            $left = $right;
            $right = $temp ^ ($spfunction2[($right1 >> 24 & $masks[24]) & 0x3f] | $spfunction4[($right1 >> 16 & $masks[16]) & 0x3f]
                  | $spfunction6[($right1 >>  8 & $masks[8]) & 0x3f] | $spfunction8[$right1 & 0x3f]
                  | $spfunction1[($right2 >> 24 & $masks[24]) & 0x3f] | $spfunction3[($right2 >> 16 & $masks[16]) & 0x3f]
                  | $spfunction5[($right2 >>  8 & $masks[8]) & 0x3f] | $spfunction7[$right2 & 0x3f]);
          }
          $temp = $left; $left = $right; $right = $temp; //unreverse left and right
        } //for either 1 or 3 iterations

        //move then each one bit to the right
        $left = (($left >> 1 & $masks[1]) | ($left << 31));
        $right = (($right >> 1 & $masks[1]) | ($right << 31));

        //now perform IP-1, which is IP in the opposite direction
        $temp = (($left >> 1 & $masks[1]) ^ $right) & 0x55555555; $right ^= $temp; $left ^= ($temp << 1);
        $temp = (($right >> 8 & $masks[8]) ^ $left) & 0x00ff00ff; $left ^= $temp; $right ^= ($temp << 8);
        $temp = (($right >> 2 & $masks[2]) ^ $left) & 0x33333333; $left ^= $temp; $right ^= ($temp << 2);
        $temp = (($left >> 16 & $masks[16]) ^ $right) & 0x0000ffff; $right ^= $temp; $left ^= ($temp << 16);
        $temp = (($left >> 4 & $masks[4]) ^ $right) & 0x0f0f0f0f; $right ^= $temp; $left ^= ($temp << 4);

        //for Cipher Block Chaining mode, xor the message with the previous result
        if ($mode == 1) {if ($encrypt) {$cbcleft = $left; $cbcright = $right;} else {$left ^= $cbcleft2; $right ^= $cbcright2;}}
        $tempresult .= (chr($left>>24 & $masks[24]) . chr(($left>>16 & $masks[16]) & 0xff) . chr(($left>>8 & $masks[8]) & 0xff) . chr($left & 0xff) . chr($right>>24 & $masks[24]) . chr(($right>>16 & $masks[16]) & 0xff) . chr(($right>>8 & $masks[8]) & 0xff) . chr($right & 0xff));

        $chunk += 8;
        if ($chunk == 512) {$result .= $tempresult; $tempresult = ""; $chunk = 0;}
      } //for every 8 characters, or 64 bits in the message

      //return the result as an array
      return ($result . $tempresult);
    }
1140231
function encrypt(userKey, plainText) {
        var i
          , offset
          , ct = []
          , tmpBlockEncrypt;

        if (utils.isAnArray(userKey) &&
          utils.isAnArray(plainText)) {

          userKey = new Uint8Array(userKey);
          plainText = new Uint8Array(plainText);
        } else {

          throw 'Inputs must be an array';
        }

        userKey = makeKey(userKey);

        for (offset = 0; offset < plainText.length; offset += 16) {

          tmpBlockEncrypt = blockEncrypt(plainText, offset, userKey);
          for (i = 0; i < tmpBlockEncrypt.length; i += 1) {

            ct.push(tmpBlockEncrypt[i]);
          }
        }

        return ct;
      }