RC2CryptoServiceProvider.UseSalt Własność

public:
 property bool UseSalt { bool get(); void set(bool value); };

public bool UseSalt { get; [System.Runtime.Versioning.SupportedOSPlatform("windows")] set; }

public bool UseSalt { get; set; }

[System.Runtime.InteropServices.ComVisible(false)]
public bool UseSalt { get; set; }

[<set: System.Runtime.Versioning.SupportedOSPlatform("windows")>]
member this.UseSalt : bool with get, set

member this.UseSalt : bool with get, set

[<System.Runtime.InteropServices.ComVisible(false)>]
member this.UseSalt : bool with get, set

Public Property UseSalt As Boolean

Wartość nieruchomości

true jeśli klucz powinien zostać utworzony przy użyciu soli o długości 11 bajtów, zerowej wartości; w przeciwnym razie , false. Wartość domyślna to false.

Atrybuty

SupportedOSPlatformAttribute ComVisibleAttribute

Przykłady

Poniższy przykład kodu ustawia UseSalt właściwość na truewartość , a następnie szyfruje i odszyfrowuje wartość.

using System;
using System.IO;
using System.Text;
using System.Security.Cryptography;

namespace RC2CryptoServiceProvider_Examples
{
    class MyMainClass
    {
        public static void Main()
        {
            byte[] originalBytes = ASCIIEncoding.ASCII.GetBytes("Here is some data.");

        //Create a new RC2CryptoServiceProvider.
            RC2CryptoServiceProvider rc2CSP = new RC2CryptoServiceProvider();

            rc2CSP.UseSalt = true;

            rc2CSP.GenerateKey();
            rc2CSP.GenerateIV();

            //Encrypt the data.
            MemoryStream msEncrypt = new MemoryStream();
            CryptoStream csEncrypt = new CryptoStream(msEncrypt, rc2CSP.CreateEncryptor(rc2CSP.Key, rc2CSP.IV), CryptoStreamMode.Write);

            //Write all data to the crypto stream and flush it.
            csEncrypt.Write(originalBytes, 0, originalBytes.Length);
            csEncrypt.FlushFinalBlock();

            //Get encrypted array of bytes.
            byte[] encryptedBytes = msEncrypt.ToArray();

            //Decrypt the previously encrypted message.
            MemoryStream msDecrypt = new MemoryStream(encryptedBytes);
            CryptoStream csDecrypt = new CryptoStream(msDecrypt, rc2CSP.CreateDecryptor(rc2CSP.Key, rc2CSP.IV), CryptoStreamMode.Read);

            byte[] unencryptedBytes = new byte[originalBytes.Length];

            //Read the data out of the crypto stream.
            csDecrypt.Read(unencryptedBytes, 0, unencryptedBytes.Length);

            //Convert the byte array back into a string.
            string plaintext = ASCIIEncoding.ASCII.GetString(unencryptedBytes);

            //Display the results.
            Console.WriteLine("Unencrypted text: {0}", plaintext);

            Console.ReadLine();
        }
    }
}

Imports System.IO
Imports System.Text
Imports System.Security.Cryptography



Module MyMainModule

    Sub Main()
        Dim originalBytes As Byte() = ASCIIEncoding.ASCII.GetBytes("Here is some data.")

        'Create a new RC2CryptoServiceProvider.
        Dim rc2CSP As New RC2CryptoServiceProvider()

        rc2CSP.UseSalt = True

        rc2CSP.GenerateKey()
        rc2CSP.GenerateIV()

        'Encrypt the data.
        Dim msEncrypt As New MemoryStream()
        Dim csEncrypt As New CryptoStream(msEncrypt, rc2CSP.CreateEncryptor(rc2CSP.Key, rc2CSP.IV), CryptoStreamMode.Write)

        'Write all data to the crypto stream and flush it.
        csEncrypt.Write(originalBytes, 0, originalBytes.Length)
        csEncrypt.FlushFinalBlock()

        'Get encrypted array of bytes.
        Dim encryptedBytes As Byte() = msEncrypt.ToArray()

        'Decrypt the previously encrypted message.
        Dim msDecrypt As New MemoryStream(encryptedBytes)
        Dim csDecrypt As New CryptoStream(msDecrypt, rc2CSP.CreateDecryptor(rc2CSP.Key, rc2CSP.IV), CryptoStreamMode.Read)

        Dim unencryptedBytes(originalBytes.Length - 1) As Byte

        'Read the data out of the crypto stream.
        csDecrypt.Read(unencryptedBytes, 0, unencryptedBytes.Length)

        'Convert the byte array back into a string.
        Dim plaintext As String = ASCIIEncoding.ASCII.GetString(unencryptedBytes)

        'Display the results.
        Console.WriteLine("Unencrypted text: {0}", plaintext)

        Console.ReadLine()

    End Sub
End Module

Uwagi

Właściwość UseSalt umożliwia współdziałanie z istniejącą aplikacją, która używa soli o długości 11 bajtów i wartości zerowej. W przypadku większości scenariuszy nie należy używać soli z kluczem RC2CryptoServiceProvider .

Zobacz też

• Usługi kryptograficzne