Example #1
0
        public bool Crypt()
        {
            GetAllFiles(_sourceFolder);

            using var keysFileStream = File.Open(_keysPath, FileMode.OpenOrCreate);

            using var zipToOpen = new FileStream(_destinationPath + "/" + _sourceFolder + ".zip", FileMode.OpenOrCreate);
            using var archive   = new ZipArchive(zipToOpen, ZipArchiveMode.Update);

            for (var i = 0; i < _allPaths.Count; i++)
            {
                var resultCryptFile = CryptFile.EncryptFile(_allPaths[i]);

                var entry = archive.CreateEntry(_allPaths[i], CompressionLevel.NoCompression);

                using var entryWriter = new StreamWriter(entry.Open());

                entryWriter.Write(resultCryptFile.Result);

                keysFileStream.Write(
                    Encoding.UTF8.GetBytes($"{resultCryptFile.Key}#{Encoding.UTF8.GetString(resultCryptFile.Iv)}\n"));

                ProgressBar(i, _allPaths.Count);
            }

            return(true);
        }
Example #2
0
        public static bool Decrypt(Cryptor cryptor, string archivePath, string destinationPath, string keysFile)
        {
            ZipFile.ExtractToDirectory(archivePath, destinationPath);

            cryptor.GetAllFilesForDecrypt(destinationPath);

            using var keysFileStream = File.Open(keysFile, FileMode.Open);
            using var memoryStream   = new MemoryStream();

            keysFileStream.CopyTo(memoryStream);

            var keysAndIv = Encoding.UTF8.GetString(memoryStream.ToArray()).Split("\n");

            keysAndIv = keysAndIv.Take(keysAndIv.Count() - 1).ToArray();

            var keyAndIvSplit = new List <string[]>();

            foreach (var kiv in keysAndIv)
            {
                keyAndIvSplit.Add(kiv.Split("#"));
            }

            for (var index = 0; index < cryptor._allPathsForDecrypt.Count; index++)
            {
                var filePath = cryptor._allPathsForDecrypt[index];

                var keyIv = keyAndIvSplit[index];
                var key   = keyIv[0];
                var iv    = keyIv[1];

                Console.Write(CryptFile.DecryptFile(filePath, key, Encoding.Unicode.GetBytes(iv)));
            }


            return(true);
        }