C#文件加密方法汇总

                {
                    if (fs.Length > 0)
                    {
                        using (FileStream fsnew = new FileStream(path + ".temp", FileMode.OpenOrCreate, FileAccess.Write))
                        {
                            if (File.Exists(path + ".temp")) File.SetAttributes(path + ".temp", FileAttributes.Hidden);
                            int blockCount = ((int)fs.Length - 1) / decryptSize + 1;
                            for (int i = 0; i < blockCount; i++)
                            {
                                int size = decryptSize;
                                if (i == blockCount - 1) size = (int)(fs.Length - i * decryptSize);
                                byte[] bArr = new byte[size];
                                fs.Read(bArr, 0, size);
                                byte[] result = AES.AESDecrypt(bArr, pwd);
                                fsnew.Write(result, 0, result.Length);