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技术 2022年11月11日
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大家知道,在应用程序中进行数据库操作需要连接字符串,而如果没有连接字符串,我们就无法在应用程序中完成检索数据,创建数据等一系列的数据库操作。当有人想要获取你程序中的数据库信息,他首先看到的可能会是Web.Config文件。而多数情况下我们不希望那些高度敏感的数据信息被别人看到,所以我们就需要对其加密。这篇文章我将演示怎么实现加密和解密数据库的连接字符串。

目录

1.创建一个新项目

2.添加一个连接字符串

3.加密连接字符串

4.解密连接字符串

需要的工具

Visual Studio

SQL Server

1.创建一个新项目

File->New->New Project->Name the project->Select Empty->Click

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” alt=”” />

接下来连接数据库。工具->连接数据库,你可以选择连接本地或者服务器数据库。

ASP.NET加密和解密数据库连接字符串

2.添加连接字符串

我们需要将连接字符串的属性添加在web config文件的configuration标签下:

<connectionStrings>
<add name="myConnection" connectionString="Data Source=SIBEESHVENU\SQLEXPRESS;Initial Catalog=ReportServer$SQLEXPRESS;Integrated Security=True" />
</connectionStrings>

然后创建一个web页面,在页面加载事件中,获取这个连接字符串并输出,代码如下:

 using System;      namespace EncryptConnectionString
{
public partial class Default: System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
try
{
string myCon = System.Configuration.ConfigurationManager.ConnectionStrings["myConnection"].ConnectionString;
if (myCon != null)
{
Response.Write("My connection string is :" + myCon);
}
}
catch (Exception)
{
throw;
}
}
}
}
}

运行页面结果:

aaarticlea/png;base64,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” alt=”” />

3.加密连接字符串

在操作之前,以管理员权限打开命令窗口,输入如下命令:

cd C:\Windows\Microsoft.NET\Framework\v4.0.30319

输入完后,返回项目,复制文件夹地址,我的地址为:F:\Visual Studio\EncryptConnectionString\EncryptConnectionString。回到刚才的命令提示行,输入:

ASPNET_REGIIS -PEF “connectionStrings” “F:\Visual Studio\EncryptConnectionString\EncryptConnectionString”

点击Enter,输出结果如下:

ASP.NET加密和解密数据库连接字符串

这里要注意connectionStrings大小写要写正确。一旦输错,就会得到这样的结果:

C:\Windows\Microsoft.NET\Framework\v4.0.30319>ASPNET_REGIIS -PEF “connectionstrings” “F:\Visual Studio\EncryptConnectionString\EncryptConnectionString”

Microsoft (R) ASP.NET RegIIS version 4.0.30319.0

Administration utility to install and uninstall ASP.NET on the local machine.

Copyright (C) Microsoft Corporation. All rights reserved.

Encrypting configuration section…

The configuration section ‘connectionstrings’ was not found.

Failed!

所以在输入时一定要仔细。最后打开程序的web.config,我们就会看到连接字符串已经加密了:

    <connectionStrings configProtectionProvider="RsaProtectedConfigurationProvider">
<EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element" xmlns="http://www.w3.org/2001/04/xmlenc#">
<EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc" />
<KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
<EncryptedKey xmlns="http://www.w3.org/2001/04/xmlenc#">
<EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5" />
<KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
<KeyName>Rsa Key</KeyName>
</KeyInfo>
<CipherData>
<CipherValue>B4B3oZrbpQsYM7Eaq5smukqDj9XUYUCwygBYRG1iasN4ll5W4wAKVCIFCRfvOJGoIXzgqpyjAI30IKf5pnZ/xWqmo3p/wGfOKdMrzd041dt9llLGbxFpLJs0Nkm583PJ1FppXLAy7FOD0YoBVhG/PBtBgLjTQqcXRNbVcgufzuArlv/EH+7lzSNRclXSTMOPMtISF65hPI9ICj9qLx7RBGhVZ6uFZVFteyyuRd2i3D2r7wJfr6KflFkakdxp1OWE2JK4Ldb8kZSwAy3bNaI/qaV9EgIWt9wM6RZO/IrI3kI/bX8JuvirPw3j/+TLDB3MoIgKjSbLpR3GYTm9csPu8g==</CipherValue>
</CipherData>
</EncryptedKey>
</KeyInfo>
<CipherData>
<CipherValue>0n1Y6ScSNZDR4x1sXfK05w9h+pp2OrAEQFQsoAUP5Y/hPsfpJS/7jv21PbPlkYmdCzycM4PGGb0+fuffR3RuL1x0tn7rfyUdA9llTfkyRQKwS9xOmkMsVFXgQDr8P4aXGef1fZPE2gjhcjm/JQToLwsfQZK1gNr4d6cIPFNqKD6wt24F7fuySJPX3OgLb8wXfQMd7ij+JcZzNlnyNHbq/DIjxSpPOnMrC52t06Jj8F8+MsSud9GcijcFB2UhvLVXQwyZ51nEj6Tf36Zbca8bgw==</CipherValue>
</CipherData>
</EncryptedData>
</connectionStrings>

4.解密连接字符串

解密连接字符串的方法一样,输入命令:

cd C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319

输入后,执行下一个命令:

ASPNET_REGIIS -PDF “connectionStrings” “F:\Visual Studio\EncryptConnectionString\EncryptConnectionString”

输出结果:

ASP.NET加密和解密数据库连接字符串

这时Web config里的连接字符串也就被解密了。

希望这篇文章对你有帮助!

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