AsymmetricAlgorithm.Create 方法

定义

命名空间:: System.Security.Cryptography

程序集:: netstandard.dll, System.Security.Cryptography.dll

程序集:: netstandard.dll, System.Security.Cryptography.Primitives.dll

程序集:: System.Security.Cryptography.Primitives.dll

程序集:: mscorlib.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

创建用于执行非对称算法的加密对象。

重载

名称	说明
Create()	已过时. 已过时. 创建用于执行非对称算法的默认加密对象。
Create(String)	已过时. 创建非对称算法的指定实现的实例。

Create()

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

注意

The default implementation of this cryptography algorithm is not supported.

注意

The default implementation of this cryptography algorithm is not supported

创建用于执行非对称算法的默认加密对象。

public:
 static System::Security::Cryptography::AsymmetricAlgorithm ^ Create();

[System.Obsolete("The default implementation of this cryptography algorithm is not supported.", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public static System.Security.Cryptography.AsymmetricAlgorithm Create();

[System.Obsolete("The default implementation of this cryptography algorithm is not supported", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public static System.Security.Cryptography.AsymmetricAlgorithm Create();

public static System.Security.Cryptography.AsymmetricAlgorithm Create();

[<System.Obsolete("The default implementation of this cryptography algorithm is not supported.", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
static member Create : unit -> System.Security.Cryptography.AsymmetricAlgorithm

[<System.Obsolete("The default implementation of this cryptography algorithm is not supported", DiagnosticId="SYSLIB0007", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
static member Create : unit -> System.Security.Cryptography.AsymmetricAlgorithm

static member Create : unit -> System.Security.Cryptography.AsymmetricAlgorithm

Public Shared Function Create () As AsymmetricAlgorithm

AsymmetricAlgorithm

新 RSACryptoServiceProvider 实例，除非已使用 <cryptoClass> 元素更改默认设置。

属性: ObsoleteAttribute

例外

PlatformNotSupportedException

.NET Core 2.0 - 3.1 和 .NET 5 及更高版本：在所有情况下。

注解

此方法在 .NET 5 及更高版本中已过时。

示例

下面的代码示例演示如何在扩展类中实现 Create 该方法。该代码示例是 AsymmetricAlgorithm 类中的一个较大示例的一部分。

// The create function attempts to create a CustomCrypto object using
// the assembly name. This functionality requires modification of the
// machine.config file. Add the following section to the configuration
// element and modify the values of the cryptoClass to reflect what is
// installed in your machines GAC.
//        <cryptoClass CustomCrypto="Contoso.CustomCrypto, 
//          CustomCrypto, 
//          Culture=neutral, 
//          PublicKeyToken=fdb9f9c4851028bf, 
//          Version=1.0.1448.27640" />
//      <nameEntry name="Contoso.CustomCrypto" class="CustomCrypto" />
//      <nameEntry name="CustomCrypto" class="CustomCrypto" />
new static public CustomCrypto Create() 
{
    return Create("CustomCrypto");
}

' The create function attempts to create a vbCustomCrypto object using
' the assembly name. This functionality requires modification of the
' machine.config file. Add the following section to the configuration
' element and modify the values of the cryptoClass to reflect what is
' installed in your machines GAC.
'          <cryptoClass vbCustomCrypto="Contoso.vbCustomCrypto, 
'            vbCustomCrypto, 
'            Culture=neutral, 
'            PublicKeyToken=fdb9f9c4851028bf, 
'            Version=1.0.1448.27640" />
'        <nameEntry name="Contoso.vbCustomCrypto" 
'                   class="vbCustomCrypto" />
'        <nameEntry name="vbCustomCrypto" class="vbCustomCrypto" />
Public Shadows Function Create() As vbCustomCrypto
    Return Create("vbCustomCrypto")
End Function

另请参阅

加密服务

适用于

Create(String)

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

Source:: AsymmetricAlgorithm.cs

注意

Cryptographic factory methods accepting an algorithm name are obsolete. Use the parameterless Create factory method on the algorithm type instead.

创建非对称算法的指定实现的实例。

public:
 static System::Security::Cryptography::AsymmetricAlgorithm ^ Create(System::String ^ algName);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The default algorithm implementations might be removed, use strong type references like 'RSA.Create()' instead.")]
[System.Obsolete("Cryptographic factory methods accepting an algorithm name are obsolete. Use the parameterless Create factory method on the algorithm type instead.", DiagnosticId="SYSLIB0045", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public static System.Security.Cryptography.AsymmetricAlgorithm? Create(string algName);

public static System.Security.Cryptography.AsymmetricAlgorithm? Create(string algName);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The default algorithm implementations might be removed, use strong type references like 'RSA.Create()' instead.")]
public static System.Security.Cryptography.AsymmetricAlgorithm? Create(string algName);

public static System.Security.Cryptography.AsymmetricAlgorithm Create(string algName);

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The default algorithm implementations might be removed, use strong type references like 'RSA.Create()' instead.")>]
[<System.Obsolete("Cryptographic factory methods accepting an algorithm name are obsolete. Use the parameterless Create factory method on the algorithm type instead.", DiagnosticId="SYSLIB0045", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
static member Create : string -> System.Security.Cryptography.AsymmetricAlgorithm

static member Create : string -> System.Security.Cryptography.AsymmetricAlgorithm

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The default algorithm implementations might be removed, use strong type references like 'RSA.Create()' instead.")>]
static member Create : string -> System.Security.Cryptography.AsymmetricAlgorithm

Public Shared Function Create (algName As String) As AsymmetricAlgorithm

参数

algName: String

要使用的非对称算法实现。下表显示了参数的有效值 algName 及其映射到的算法。

参数值	实现
System.Security.Cryptography.AsymmetricAlgorithm	AsymmetricAlgorithm
Rsa	RSA
System.Security.Cryptography.RSA	RSA
Dsa	DSA
System.Security.Cryptography.DSA	DSA
ECDsa	ECDsa
ECDsaCng	ECDsaCng
System.Security.Cryptography.ECDsaCng	ECDsaCng
ECDH	ECDiffieHellman
ECDiffieHellman	ECDiffieHellman
ECDiffieHellmanCng	ECDiffieHellmanCng
System.Security.Cryptography.ECDiffieHellmanCng	ECDiffieHellmanCng

AsymmetricAlgorithm

指定非对称算法实现的新实例。

属性: RequiresUnreferencedCodeAttribute ObsoleteAttribute

示例

下面的代码示例演示如何在扩展类中实现 Create 该方法。该代码示例是 AsymmetricAlgorithm 类中的一个较大示例的一部分。

// The create function attempts to create a CustomCrypto object using
// the assembly name. This functionality requires modification of the
// machine.config file. Add the following section to the configuration
// element and modify the values of the cryptoClass to reflect what is
// installed in your machines GAC.
//       <cryptoClass CustomCrypto="Contoso.CustomCrypto, 
//         CustomCrypto, 
//         Culture=neutral, 
//         PublicKeyToken=fdb9f9c4851028bf, 
//         Version=1.0.1448.27640" />
//     <nameEntry name="Contoso.CustomCrypto" class="CustomCrypto" />
//     <nameEntry name="CustomCrypto" class="CustomCrypto" />
new static public CustomCrypto Create(String algorithmName) 
{
    return (CustomCrypto) CryptoConfig.CreateFromName(algorithmName);
}

' The create function attempts to create a vbCustomCrypto object using
' the assembly name. This functionality requires modification of the
' machine.config file. Add the following section to the configuration
' element and modify the values of the cryptoClass to reflect what is
' installed in your machines GAC.
'          <cryptoClass vbCustomCrypto="Contoso.vbCustomCrypto, 
'            vbCustomCrypto, 
'            Culture=neutral, 
'            PublicKeyToken=fdb9f9c4851028bf, 
'            Version=1.0.1448.27640" />
'        <nameEntry name="Contoso.vbCustomCrypto" 
'                   class="vbCustomCrypto" />
'        <nameEntry name="vbCustomCrypto" class="vbCustomCrypto" />
Public Shadows Function Create( _
    ByVal algorithmName As String) As vbCustomCrypto

    Return CType( _
        CryptoConfig.CreateFromName(algorithmName), _
        vbCustomCrypto)

End Function

另请参阅

加密服务

适用于

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AsymmetricAlgorithm.Create 方法

定义

重载

Create()

返回

例外

注解

示例

另请参阅

适用于

Create(String)

参数

返回

示例

另请参阅

适用于