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SymmetricAlgorithm.CreateEncryptor Método

Definición

Crea un objeto cifrador simétrico.

Sobrecargas

CreateEncryptor()

Crea un objeto cifrador simétrico con la propiedad Key y el vector de inicialización (IV) actuales.

CreateEncryptor(Byte[], Byte[])

Cuando se invalida en una clase derivada, se crea un objeto descifrador simétrico con la propiedad Key y el vector de inicialización (IV) especificados.

CreateEncryptor()

Source:
SymmetricAlgorithm.cs
Source:
SymmetricAlgorithm.cs
Source:
SymmetricAlgorithm.cs

Crea un objeto cifrador simétrico con la propiedad Key y el vector de inicialización (IV) actuales.

public:
 virtual System::Security::Cryptography::ICryptoTransform ^ CreateEncryptor();
public virtual System.Security.Cryptography.ICryptoTransform CreateEncryptor ();
abstract member CreateEncryptor : unit -> System.Security.Cryptography.ICryptoTransform
override this.CreateEncryptor : unit -> System.Security.Cryptography.ICryptoTransform
Public Overridable Function CreateEncryptor () As ICryptoTransform

Devoluciones

Objeto cifrador simétrico.

Ejemplos

En el ejemplo siguiente se cifra una cadena mediante el objeto de transformación devuelto por el CreateEncryptor método .

using namespace System;
using namespace System::Security::Cryptography;
using namespace System::Text;

class EncryptorExample
{
public:
     static void Main()
     {
         TripleDESCryptoServiceProvider^ tdesCSP = gcnew TripleDESCryptoServiceProvider();

         tdesCSP->GenerateKey();
         tdesCSP->GenerateIV();
         String^ quote =
             "Things may come to those who wait, but only the " +
             "things left by those who hustle. -- Abraham Lincoln";
         array<Byte>^ encQuote = EncryptString(tdesCSP, quote);

         Console::WriteLine("Encrypted Quote:\n");
         Console::WriteLine(Convert::ToBase64String(encQuote));

         Console::WriteLine("\nDecrypted Quote:\n");
         Console::WriteLine(DecryptBytes(tdesCSP, encQuote));
     }

public:
     static array<Byte>^ EncryptString(SymmetricAlgorithm^ symAlg, String^ inString)
     {
         array<Byte>^ inBlock = UnicodeEncoding::Unicode->GetBytes(inString);
         ICryptoTransform^ xfrm = symAlg->CreateEncryptor();
         array<Byte>^ outBlock = xfrm->TransformFinalBlock(inBlock, 0, inBlock->Length);

         return outBlock;
     }

     static String^ DecryptBytes(SymmetricAlgorithm^ symAlg, array<Byte>^ inBytes)
     {
         ICryptoTransform^ xfrm = symAlg->CreateDecryptor();
         array<Byte>^ outBlock = xfrm->TransformFinalBlock(inBytes, 0, inBytes->Length);

         return UnicodeEncoding::Unicode->GetString(outBlock);
     }
};

int main()
{
    EncryptorExample::Main();
}
using System;
using System.Security.Cryptography;
using System.Text;

class EncryptorExample
{
     private static string quote =
         "Things may come to those who wait, but only the " +
         "things left by those who hustle. -- Abraham Lincoln";

     public static void Main()
     {
         AesCryptoServiceProvider aesCSP = new AesCryptoServiceProvider();

         aesCSP.GenerateKey();
         aesCSP.GenerateIV();
         byte[] encQuote = EncryptString(aesCSP, quote);

         Console.WriteLine("Encrypted Quote:\n");
         Console.WriteLine(Convert.ToBase64String(encQuote));

         Console.WriteLine("\nDecrypted Quote:\n");
         Console.WriteLine(DecryptBytes(aesCSP, encQuote));
     }

     public static byte[] EncryptString(SymmetricAlgorithm symAlg, string inString)
     {
         byte[] inBlock = UnicodeEncoding.Unicode.GetBytes(inString);
         ICryptoTransform xfrm = symAlg.CreateEncryptor();
         byte[] outBlock = xfrm.TransformFinalBlock(inBlock, 0, inBlock.Length);

         return outBlock;
     }

     public static string DecryptBytes(SymmetricAlgorithm symAlg, byte[] inBytes)
     {
         ICryptoTransform xfrm = symAlg.CreateDecryptor();
         byte[] outBlock = xfrm.TransformFinalBlock(inBytes, 0, inBytes.Length);

         return UnicodeEncoding.Unicode.GetString(outBlock);
     }
}
Imports System.Security.Cryptography
Imports System.Text

Class EncryptorExample
     Private Shared quote As String = _
         "Things may come to those who wait, but only the " + _
         "things left by those who hustle. -- Abraham Lincoln"

     Public Shared Sub Main()
         Dim aesCSP As New AesCryptoServiceProvider()

         aesCSP.GenerateKey()
         aesCSP.GenerateIV()
         Dim encQuote() As Byte = EncryptString(aesCSP, quote)

         Console.WriteLine("Encrypted Quote:" + Environment.NewLine)
         Console.WriteLine(Convert.ToBase64String(encQuote))

         Console.WriteLine(Environment.NewLine + "Decrypted Quote:" + Environment.NewLine)
         Console.WriteLine(DecryptBytes(aesCSP, encQuote))
     End Sub

     Public Shared Function EncryptString(symAlg As SymmetricAlgorithm, inString As String) As Byte()
         Dim inBlock() As Byte = UnicodeEncoding.Unicode.GetBytes(inString)
         Dim xfrm As ICryptoTransform = symAlg.CreateEncryptor()
         Dim outBlock() As Byte = xfrm.TransformFinalBlock(inBlock, 0, inBlock.Length)

         Return outBlock
     End Function

     Public Shared Function DecryptBytes(symAlg As SymmetricAlgorithm, inBytes() As Byte) As String
         Dim xfrm As ICryptoTransform = symAlg.CreateDecryptor()
         Dim outBlock() As Byte = xfrm.TransformFinalBlock(inBytes, 0, inBytes.Length)

         return UnicodeEncoding.Unicode.GetString(outBlock)
     End Function
End Class

Comentarios

Si la propiedad actual Key es null, GenerateKey se llama al método para crear un nuevo objeto aleatorio Key. Si la propiedad actual IV es null, GenerateIV se llama al método para crear un nuevo objeto aleatorio IV.

Use la CreateDecryptor sobrecarga con la misma firma para descifrar el resultado de este método.

Consulte también

Se aplica a

CreateEncryptor(Byte[], Byte[])

Source:
SymmetricAlgorithm.cs
Source:
SymmetricAlgorithm.cs
Source:
SymmetricAlgorithm.cs

Cuando se invalida en una clase derivada, se crea un objeto descifrador simétrico con la propiedad Key y el vector de inicialización (IV) especificados.

public:
 abstract System::Security::Cryptography::ICryptoTransform ^ CreateEncryptor(cli::array <System::Byte> ^ rgbKey, cli::array <System::Byte> ^ rgbIV);
public abstract System.Security.Cryptography.ICryptoTransform CreateEncryptor (byte[] rgbKey, byte[]? rgbIV);
public abstract System.Security.Cryptography.ICryptoTransform CreateEncryptor (byte[] rgbKey, byte[] rgbIV);
abstract member CreateEncryptor : byte[] * byte[] -> System.Security.Cryptography.ICryptoTransform
Public MustOverride Function CreateEncryptor (rgbKey As Byte(), rgbIV As Byte()) As ICryptoTransform

Parámetros

rgbKey
Byte[]

Clave secreta que se va a usar para el algoritmo simétrico.

rgbIV
Byte[]

Vector de inicialización que se va a usar para el algoritmo simétrico.

Devoluciones

Objeto cifrador simétrico.

Comentarios

Use la CreateDecryptor sobrecarga con los mismos parámetros para descifrar el resultado de este método.

Consulte también

Se aplica a