AsymmetricAlgorithm.Create Metodo

Definizione

Spazio dei nomi:: System.Security.Cryptography

Assembly:: netstandard.dll, System.Security.Cryptography.dll

Assembly:: netstandard.dll, System.Security.Cryptography.Primitives.dll

Assembly:: System.Security.Cryptography.Primitives.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Importante

Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.

Crea un oggetto crittografico utilizzato per eseguire l'algoritmo asimmetrico.

Overload

Nome	Descrizione
Create()	Obsoleti. Obsoleti. Crea un oggetto di crittografia predefinito utilizzato per eseguire l'algoritmo asimmetrico.
Create(String)	Obsoleti. Crea un'istanza dell'implementazione specificata di un algoritmo asimmetrico.

Create()

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Attenzione

The default implementation of this cryptography algorithm is not supported.

Attenzione

The default implementation of this cryptography algorithm is not supported

Crea un oggetto di crittografia predefinito utilizzato per eseguire l'algoritmo asimmetrico.

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

Valori restituiti

AsymmetricAlgorithm

RSACryptoServiceProvider Nuova istanza, a meno che le impostazioni predefinite non siano state modificate con l'elemento< cryptoClass>.

Attributi: ObsoleteAttribute

Eccezioni

PlatformNotSupportedException

.NET Core 2.0 - 3.1 e .NET 5 e versioni successive: in tutti i casi.

Commenti

Questo metodo è obsoleto in .NET 5 e versioni successive.

Example

Nell'esempio di codice seguente viene illustrato come implementare il Create metodo in una classe estesa. Questo esempio di codice fa parte di un esempio più ampio fornito per la AsymmetricAlgorithm classe .

// 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

Vedi anche

Servizi di crittografia

Si applica a

Create(String)

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Origine:: AsymmetricAlgorithm.cs

Attenzione

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

Crea un'istanza dell'implementazione specificata di un algoritmo asimmetrico.

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

Parametri

algName: String

Implementazione dell'algoritmo asimmetrico da usare. La tabella seguente mostra i valori validi per il algName parametro e gli algoritmi a cui eseguono il mapping.

Valore del parametro	Implementa
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

Valori restituiti

AsymmetricAlgorithm

Nuova istanza dell'implementazione dell'algoritmo asimmetrico specificato.

Attributi: RequiresUnreferencedCodeAttribute ObsoleteAttribute

Esempio

// 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

Vedi anche

Servizi di crittografia

Si applica a

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