<nameEntry> Element

Artikkel
09/15/2021

Maps a class name to a friendly algorithm name, which allows one class to have many friendly names.

<configuration>
  <mscorlib>
    <cryptographySettings>
      <cryptoNameMapping>
        <nameEntry>

Syntax

<nameEntry name="friendly name" Class="class name" />

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

Attribute	Description
name	Required attribute. Specifies the friendly name of the algorithm that the cryptography class implements.
class	Required attribute. Specifies the value for the name attribute in the <cryptoClass> element.

Child Elements

None.

Parent Elements

Element	Description
`configuration`	The root element in every configuration file used by the common language runtime and .NET Framework applications.
`system.web`	Specifies the root element for the ASP.NET configuration section.

Remarks

The name attribute can be the name of one of the abstract classes found in the System.Security.Cryptography namespace. When you call the Create method on an abstract cryptography class, the abstract class name is passed to the CreateFromName method. CreateFromName returns an instance of the type indicated by the class attribute. If the name attribute is a short name, such as RSA, you can use that name when calling the CreateFromName method.

Example

The following example shows how to use the <nameEntry> element to reference a cryptography class and to configure the runtime. You can then pass the string "RSA" to the CryptoConfig.CreateFromName method and use the Create method to return a MyCryptoRSAClass object.

<configuration>  
   <mscorlib>  
      <cryptographySettings>  
         <cryptoNameMapping>  
            <cryptoClasses>  
               <cryptoClass   MyCryptoRSA="MyCryptoRSAClass, MyAssembly  
                  Culture=neutral, PublicKeyToken=a5d015c7d5a0b012,  
                  Version=1.0.0.0"/>  
            </cryptoClasses>  
            <nameEntry name="RSA" class="MyCryptoRSA"/>  
            <nameEntry name="System.Security.Cryptography.AsymmetricAlgorithm"  
                       class="MyCryptoRSA"/>  
         </cryptoNameMapping>  
      </cryptographySettings>  
   </mscorlib>  
</configuration>

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