AsymmetricAlgorithm.Create Metode

Definisi

Ruang nama:

System.Security.Cryptography

Rakitan:

netstandard.dll, System.Security.Cryptography.dll

Membuat objek kriptografi yang digunakan untuk melakukan algoritma asimetris.

Overload

Nama	Deskripsi
Create()	Kedaluwarsa. Membuat objek kriptografi default yang digunakan untuk melakukan algoritma asimetris.
Create(String)	Kedaluwarsa. Membuat instans implementasi algoritma asimetris yang ditentukan.

Create()

Sumber:

AsymmetricAlgorithm.cs

Perhatian

The default implementation of this cryptography algorithm is not supported.

Membuat objek kriptografi default yang digunakan untuk melakukan algoritma asimetris.

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

Mengembalikan

AsymmetricAlgorithm

Instans baruRSACryptoServiceProvider, kecuali pengaturan default telah diubah dengan <elemen cryptoClass>.

Atribut

ObsoleteAttribute

Pengecualian

PlatformNotSupportedException

.NET Core 2.0 - 3.1 dan .NET 5 dan yang lebih baru: Dalam semua kasus.

Keterangan

Metode ini kedaluarsa dalam versi .NET 5 dan yang lebih baru.

Example

Contoh kode berikut menunjukkan cara mengimplementasikan Create metode di kelas yang diperluas. Contoh kode ini adalah bagian dari contoh yang lebih besar yang disediakan untuk AsymmetricAlgorithm kelas .

// 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

Lihat juga

• Layanan Kriptografi

Create(String)

Sumber:

AsymmetricAlgorithm.cs

Perhatian

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

Membuat instans implementasi algoritma asimetris yang ditentukan.

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);

[<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

Public Shared Function Create (algName As String) As AsymmetricAlgorithm

Parameter

algName

String

Implementasi algoritma asimetris untuk digunakan. Tabel berikut ini memperlihatkan nilai yang valid untuk algName parameter dan algoritma yang dipetakan.

Nilai parameter	Mengimplementasikan
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

Mengembalikan

AsymmetricAlgorithm

Instans baru dari implementasi algoritma asimetris yang ditentukan.

Atribut

RequiresUnreferencedCodeAttribute ObsoleteAttribute

Contoh

Contoh kode berikut menunjukkan cara mengimplementasikan Create metode di kelas yang diperluas. Contoh kode ini adalah bagian dari contoh yang lebih besar yang disediakan untuk AsymmetricAlgorithm kelas .

// 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

Lihat juga

• Layanan Kriptografi