GPG自动解密密码传递

我们收到来自第三方的GPGencryption文件。 我正在修改一个C＃程序来查找encryption文件，解密它们，并删除encryption的文件。 这一切除了在解密部分，它提示一个phassphrase; 我知道密码，它input时工作。 我需要在命令中传递密码，所以提示不会出现。

string CommandText = string.Format("echo {0}|gpg.exe --keyring {1} --secret-keyring {2} --batch --yes --passphrase-fd 0 -o {3} -d {4}", passPhrase, publicKeyRingPath, secretKeyRingPath, outputFullPath, encryptedFilePath); 

我也试过了：

  string CommandText = string.Format("gpg.exe --keyring {1} --secret-keyring {2} --batch --yes --passphrase {0} -o {3} -d {4}", string CommandText = string.Format("gpg.exe --keyring {1} --secret-keyring {2} --batch --yes --passphrase-fd {0} -o {3} -d {4}", 

以及其他几个变化。

这是运行Windows 2.1.0.57899的GnuPG

如果问题在别处，那么主要是由我的前任编写的代码：

 public bool decryptInputFile(string encryptedFilePath, string outputFullPath, out string message) { message = "decryptInputFile: Started"; try { ProcessStartInfo psi = new ProcessStartInfo("cmd.exe") { CreateNoWindow = true, UseShellExecute = true, RedirectStandardInput = true, RedirectStandardOutput = true, RedirectStandardError = true, WorkingDirectory = decryptPath, }; message = "decryptInputFile: PSI Initialized"; using (Process process = Process.Start(psi)) { string CommandText = string.Format("echo {0}|gpg.exe --keyring {1} --secret-keyring {2} --batch --yes --passphrase-fd 0 -o {3} -d {4}", passPhrase, publicKeyRingPath, secretKeyRingPath, outputFullPath, encryptedFilePath); process.StandardInput.WriteLine(CommandText); process.StandardInput.Flush(); process.StandardInput.Close(); process.WaitForExit(); process.Close(); process.Dispose(); message = "decryptInputFile: Success"; //These processes don't close and it keeps the file from being deleted. foreach (Process P in Process.GetProcessesByName("gpg")) { P.Kill(); } foreach (Process P in Process.GetProcessesByName("gpg2")) { P.Kill(); } } } catch (Exception x) { // If there was an error, we're going to eat it and just let the user know we failed. message = "decryptInputFile: Error: " + x.Message; string errMessage = "ERROR: could not decrypt. " + x.Message + "\r\n"; File.AppendAllText(System.Configuration.ConfigurationSettings.AppSettings["LogPath"], errMessage); return false; } if (File.Exists(outputFullPath) && File.Exists(encryptedFilePath)) { File.Delete(encryptedFilePath); } return File.Exists(outputFullPath); }