Question

从文件夹加载X509证书

我正在使用c＃，并且需要从文件夹中加载X509证书。我需要从文件夹中加载文件以显示在加密程序内部的表中。

public partial class Form1 : Form
{
    DataTable dt = new DataTable();
    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        var store = new X509Store(StoreName.My, storeLocation: StoreLocation.LocalMachine);
        store.Open(OpenFlags.ReadOnly);

        DataColumn dc1 = new DataColumn("Name", typeof(string));
        DataColumn dc2 = new DataColumn("E-mail", typeof(string));
        DataColumn dc3 = new DataColumn("valid from", typeof(string));
        DataColumn dc4 = new DataColumn("Expiry Date", typeof(string));
        DataColumn dc5 = new DataColumn("ThumbPrint", typeof(string));
        dt.Columns.Add(dc1);
        dt.Columns.Add(dc2);
        dt.Columns.Add(dc3);
        dt.Columns.Add(dc4);
        dt.Columns.Add(dc5);

        foreach (X509Certificate2 mCert in store.Certificates)
        {
            string email1 = mCert.GetNameInfo(X509NameType.SimpleName, false);
            string stringAfterChar = email1.Substring(email1.IndexOf("-") + 1);
            string name = mCert.GetNameInfo(X509NameType.SimpleName, false);
            string[] splitString = name.Split('-');

            string namewithoutemail = splitString[0].Trim();

            dt.Rows.Add(namewithoutemail , stringAfterChar,  mCert.NotBefore, mCert.GetExpirationDateString() , mCert.Thumbprint);
        }

        dataGridView1.DataSource = dt;

    }

这是我的代码，实际上我可以从CertificateStore加载证书，但是我想从folder.Other加载证书，我可以为其程序创建一个特殊的证书存储，但是我认为这是不可能的。感谢您的帮助

Answer 1

请参阅X509Certificate2.Import的参考。这使您可以从文件系统中加载证书（以及其他方法）。在这种情况下，您只需要遍历文件夹中的证书文件，而不用打开CertificateStore。

foreach (var file in Directory.GetFiles(yourFolder, "*.cer"))
        {
            var mCert = X509Certificate2.Import(file);

            string email1 = mCert.GetNameInfo(X509NameType.SimpleName, false);
            string stringAfterChar = email1.Substring(email1.IndexOf("-") + 1);
            string name = mCert.GetNameInfo(X509NameType.SimpleName, false);
            string[] splitString = name.Split('-');

            string namewithoutemail = splitString[0].Trim();

            dt.Rows.Add(namewithoutemail , stringAfterChar,  mCert.NotBefore, mCert.GetExpirationDateString() , mCert.Thumbprint);
        }

从所选文件夹加载X509证书

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