C#文件加密方法汇总

                            int blockCount = ((int)fs.Length - 1) / encryptSize + 1;
                            for (int i = 0; i < blockCount; i++)
                            {
                                int size = encryptSize;
                                if (i == blockCount - 1) size = (int)(fs.Length - i * encryptSize);
                                byte[] bArr = new byte[size];
                                fs.Read(bArr, 0, size);
                                byte[] result = AES.AESEncrypt(bArr, pwd);
                                fsnew.Write(result, 0, result.Length);
                                fsnew.Flush();
                                refreshFileProgress(blockCount, i + 1); //更新进度
                            }
                            fsnew.Close();
                            fsnew.Dispose();
                        }