AsymmetricAlgorithm.Create Método

Definição

Namespace:

System.Security.Cryptography

Assembly:

System.Security.Cryptography.dll

Cria um objeto criptográfico usado para executar o algoritmo assimétrico.

Sobrecargas

Create()	Obsoleto. Cria um objeto criptográfico padrão usado para executar o algoritmo assimétrico.
Create(String)	Obsoleto. Cria uma instância da implementação especificada de um algoritmo assimétrico.

Create()

Origem:

AsymmetricAlgorithm.cs

Cuidado

The default implementation of this cryptography algorithm is not supported.

Cria um objeto criptográfico padrão usado para executar o algoritmo assimétrico.

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}")>]
static member Create : unit -> System.Security.Cryptography.AsymmetricAlgorithm

Public Shared Function Create () As AsymmetricAlgorithm

Retornos

AsymmetricAlgorithm

Uma nova instância RSACryptoServiceProvider, a menos que as configurações padrão tenham sido alteradas com o elemento <cryptoClass>.

Atributos

ObsoleteAttribute

Exceções

PlatformNotSupportedException

.NET Core 2.0 – 3.1 e .NET 5 e posterior: em todos os casos.

Comentários

Esse método está obsoleto no .NET 5 e em versões posteriores.

Exemplo

O exemplo de código a seguir demonstra como implementar o Create método em uma classe estendida. Este exemplo de código faz parte de um exemplo maior fornecido para a 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 isinstalled 
    // 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" />

public:
    static CustomCrypto^ Create() 
    {
        return Create("CustomCrypto");
    }

// 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

Confira também

• Serviços criptográficos

Create(String)

Origem:

AsymmetricAlgorithm.cs

Cuidado

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

Cria uma instância da implementação especificada de um algoritmo assimétrico.

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

[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);

[<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

Public Shared Function Create (algName As String) As AsymmetricAlgorithm

Parâmetros

algName

String

A implementação do algoritmo assimétrico a ser usada. A tabela a seguir mostra os valores válidos para o parâmetro algName e os algoritmos para os quais são mapeados.

Valor do parâmetro	Implements
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

Retornos

AsymmetricAlgorithm

Uma nova instância da implementação do algoritmo assimétrico especificada.

Atributos

ObsoleteAttribute

Exemplos

O exemplo de código a seguir demonstra como implementar o Create método em uma classe estendida. Este exemplo de código faz parte de um exemplo maior fornecido para a 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" />

public:
    static CustomCrypto^ Create(String^ algorithmName) 
    {
        return (CustomCrypto^) 
            CryptoConfig::CreateFromName(algorithmName);
    }

// 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

Confira também

• Serviços criptográficos