如何在C＃中解密密码 [英] How to decrypt password in C#

问题描述

我使用此代码解密我的密码

  public   class  NetFourMembershipProvider：SqlMembershipProvider 
 {
 
  public   string  GetClearTextPassword（ string  encryptedPwd）
 {
 
 尝试 
 {
  byte  [] encodedPassword = Convert.FromBase64String （encryptedPwd）; 
  byte  [] bytes =  this  .DecryptPassword（encodedPassword）; 
  if （bytes ==  null ）
 {
  return   null ; 
} 
 
  return  Encoding.Unicode.GetString（bytes，0x10，bytes.Length  -  0x10）; 
} 
  catch （例外）
 {
 
 抛; 
} 
 
} 
 
} 

这是我的应用.config文件。

 <  配置 >  
 <   system.web  >  
 <   machineKey     validationKey   =  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX                  decryptionKey   =  XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX    decryption   =  3DES       验证  =  SHA1    /  >  
 
 <  成员资格    defaultProvider   =  AspNetSqlMembershipProvider    userIsOnlineTimeWindow   =  15  >  
 <  提供商 >  
 <   clear     /  >  
 <   add     name   =  AspNetSqlMembershipProvider  
   
           type   =  System.Web.Security.SqlMembershipProvider  
   
           connectionStringName   =  SiteSqlServer   < span class =code-attribute> enablePasswordRetrieval   =  true  
   
           enablePasswordReset   =  true    requiresQuestionAndAnswer   =  false  
   
           minRequiredPasswordLength   = < span class =code-keyword> 7    minRequiredNonalphanumericCharacters   =  0  
   
           requiresUniqueEmail   =  false  
   
           passwordFormat  < span class =code-keyword> = 加密  
  < span class =code-attribute> 
           applicationName   =   DotNetNuke  
   
           de  脚本  ion   = 存储和检索.......    /  >  
 <   / providers  >  
 <   / membership  < span class =code-keyword>>  
 <  编译    debug   =  true    targetFramework   =  4.0    /  >  
 <   / system.web  >  

此行

  byte  [] bytes =  this  .DecryptPassword（encodedPassword）; 

我收到以下错误消息。



您必须指定一个非自动生成的机器密钥以加密格式存储密码。指定不同的passwordFormat，或更改machineKey配置以使用非自动生成的解密密钥。

如何转换密码。



请帮帮我。



注意： - 验证密钥是40个字符，decryptionKey是48个charectors长数据。



感谢提前

解决方案

不要费心去做。给你的代码解密密码的能力是一个巨大的安全风险。

您可以设置加密密钥。这篇文章 [ ^ ]描述了一个解决方案

Hi,
I am using this code to decrypt my password

public class NetFourMembershipProvider : SqlMembershipProvider
{

public string GetClearTextPassword(string encryptedPwd)
{

    try
    {
        byte[] encodedPassword = Convert.FromBase64String(encryptedPwd);
        byte[] bytes = this.DecryptPassword(encodedPassword);
        if (bytes == null)
        {
            return null;
        }

        return Encoding.Unicode.GetString(bytes, 0x10, bytes.Length - 0x10);
    }
    catch (Exception)
    {

        throw;
    }

   }

}

This is my app.config file.

<configuration>
<system.web>
<machineKey validationKey="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"        decryptionKey="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" decryption="3DES"   validation="SHA1" />

<membership defaultProvider="AspNetSqlMembershipProvider" userIsOnlineTimeWindow="15">
  <providers>
    <clear />
    <add name="AspNetSqlMembershipProvider"

    type="System.Web.Security.SqlMembershipProvider"

    connectionStringName="SiteSqlServer" enablePasswordRetrieval="true"

    enablePasswordReset="true" requiresQuestionAndAnswer="false"

    minRequiredPasswordLength="7" minRequiredNonalphanumericCharacters="0"

    requiresUniqueEmail="false"

    passwordFormat="Encrypted"

    applicationName="DotNetNuke"

    description="Stores and retrieves ......." />
  </providers>
</membership>
<compilation debug="true" targetFramework="4.0" />
</system.web>

At this line

byte[] bytes = this.DecryptPassword(encodedPassword);

I am getting the below error message.

"You must specify a non-autogenerated machine key to store passwords in the encrypted format. Either specify a different passwordFormat, or change the machineKey configuration to use a non-autogenerated decryption key."
How can I convert passwords.

Please help me.

Note:- The validationkey is 40 characters and decryptionKey is a 48 charectors long data.

Thanks in Advance

解决方案

Don't bother to do it. Giving your code the ability to decrypt passwords is a HUGE security risk.

You could setup the encryption key. This post[^] describes a solution.

这篇关于如何在C＃中解密密码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！