嵌入.Net C＃在网页？

我想嵌入一些C＃.Net代码，在网页中执行一些简单的加密/解密函数。这将是一个内部网页，因此用户将被隐式信任。有没有办法做到这一点？我将需要击中用户的Windows-MY密钥存储区（通过CAPI）以提取解密密钥，并且击中LDAP服务器以获取用于加密的公钥。嵌入.Net C＃在网页？

来源

2010-07-19 Petey B

我最终用C＃伪造了一个COM对象，然后使用JavaScript调用该COM对象，并且能够通过浏览器与CAPI进行交互。

的JavaScript：

<html> 
<head> 
<script language="javascript"> 
var keystore = new ActiveXObject("RBCrypto.KeyStore"); 

function getCertList() 
{ 
    try { 
    keystore.openKeyStore("MY", true, false); 
    var size = keystore.getStoreSize(); 

    var list = document.getElementById('list'); 
    list.size = size; 

    for(var i = 0; i < size; i++) 
    { 
     var fname = keystore.getFriendlyName(i, true); 
     var opt = new Option(fname, fname); 
     list.options.add(opt); 
    } 
    } 
    catch(err) 
    { 
    alert(err.description); 
    } 
} 
</script> 
</head> 
<body onload="getCertList()"> 
    <center> 
    <h2>KeyStore Test</h2> 
    <hr /> 
    <br /> 
    <select id="list"></select> 
    </center> 
</body> 
</html>

C＃：

using System; 
using System.Runtime.InteropServices; 
using System.Security; 
using System.Security.Cryptography; 
using System.Security.Cryptography.X509Certificates; 

namespace RBCrypto 
{ 
    public interface AXInterface 
    { 
     void openKeyStore(string storeName, bool currentUser, bool readOnly); 
     int getStoreSize(); 
     string getFriendlyName(int index, bool subjectNameIfEmpty); 
    } 

    [ClassInterface(ClassInterfaceType.AutoDual)] 
    public class KeyStore :AXInterface 
    { 
     public void openKeyStore(string storeName, bool currentUser, bool readOnly) 
     { 
      if (keystoreInitialized) 
       throw new Exception("Key Store must be closed before re-initialization"); 

      try 
      { 
       if (currentUser) //user wants to open store used by the current user 
        certificateStore = new X509Store(storeName, StoreLocation.CurrentUser); 
       else    //user wants to open store used by local machine 
        certificateStore = new X509Store(storeName, StoreLocation.LocalMachine); 

       if (readOnly) 
        certificateStore.Open(OpenFlags.ReadOnly); 
       else 
        certificateStore.Open(OpenFlags.ReadWrite); 

       allCertificates = certificateStore.Certificates; 

       if (allCertificates == null) 
       { 
        certificateStore.Close(); 
        throw new NullReferenceException("Certificates could not be gathered"); 
       } 

       keystoreInitialized = true; 
      } 
      catch (ArgumentException ae) 
      { 
       throw ae; 
      } 
      catch (SecurityException se) 
      { 
       throw se; 
      } 
      catch (CryptographicException ce) 
      { 
       throw ce; 
      } 
      catch (NullReferenceException ne) 
      { 
       throw ne; 
      } 
     } 

     .... 
    } 
}

C＃程序集信息：

// Setting ComVisible to false makes the types in this assembly not visible 
// to COM components. If you need to access a type in this assembly from 
// COM, set the ComVisible attribute to true on that type. 
[assembly: ComVisible(true)]

为了这个工作，用户必须6.在安装他们的机器上您的.dll（确保你指定在您的安装程序中将.dll注册为vsdraCOM），并且他们必须将您的网站添加到他们的truste d站点。

来源

2010-08-18 14:44:35