Rfc2898DeriveBytes Konstruktoren

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(System::String ^ password, cli::array <System::Byte> ^ salt);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, byte[] salt);

public Rfc2898DeriveBytes(string password, byte[] salt);

[System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, byte[] salt);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] -> System.Security.Cryptography.Rfc2898DeriveBytes

[<System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As String, salt As Byte())

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Beispiele

Im folgenden Codebeispiel wird die Rfc2898DeriveBytes Klasse verwendet, um zwei identische Schlüssel für die Aes Klasse zu erstellen. Anschließend werden einige Daten mit den Schlüsseln verschlüsselt und entschlüsselt.

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

public class rfc2898test
{
    // Generate a key k1 with password pwd1 and salt salt1.
    // Generate a key k2 with password pwd1 and salt salt1.
    // Encrypt data1 with key k1 using symmetric encryption, creating edata1.
    // Decrypt edata1 with key k2 using symmetric decryption, creating data2.
    // data2 should equal data1.

    private const string usageText = "Usage: RFC2898 <password>\nYou must specify the password for encryption.\n";
    public static void Main(string[] passwordargs)
    {
        //If no file name is specified, write usage text.
        if (passwordargs.Length == 0)
        {
            Console.WriteLine(usageText);
        }
        else
        {
            string pwd1 = passwordargs[0];
            // Create a byte array to hold the random value.
            byte[] salt1 = new byte[8];
            using (RandomNumberGenerator rng = RandomNumberGenerator.Create())
            {
                // Fill the array with a random value.
                rng.GetBytes(salt1);
            }

            //data1 can be a string or contents of a file.
            string data1 = "Some test data";
            //The default iteration count is 1000 so the two methods use the same iteration count.
            int myIterations = 1000;
            try
            {
                Rfc2898DeriveBytes k1 = new Rfc2898DeriveBytes(pwd1, salt1,
myIterations);
                Rfc2898DeriveBytes k2 = new Rfc2898DeriveBytes(pwd1, salt1);
                // Encrypt the data.
                Aes encAlg = Aes.Create();
                encAlg.Key = k1.GetBytes(16);
                MemoryStream encryptionStream = new MemoryStream();
                CryptoStream encrypt = new CryptoStream(encryptionStream,
encAlg.CreateEncryptor(), CryptoStreamMode.Write);
                byte[] utfD1 = new System.Text.UTF8Encoding(false).GetBytes(
data1);

                encrypt.Write(utfD1, 0, utfD1.Length);
                encrypt.FlushFinalBlock();
                encrypt.Close();
                byte[] edata1 = encryptionStream.ToArray();
                k1.Reset();

                // Try to decrypt, thus showing it can be round-tripped.
                Aes decAlg = Aes.Create();
                decAlg.Key = k2.GetBytes(16);
                decAlg.IV = encAlg.IV;
                MemoryStream decryptionStreamBacking = new MemoryStream();
                CryptoStream decrypt = new CryptoStream(
decryptionStreamBacking, decAlg.CreateDecryptor(), CryptoStreamMode.Write);
                decrypt.Write(edata1, 0, edata1.Length);
                decrypt.Flush();
                decrypt.Close();
                k2.Reset();
                string data2 = new UTF8Encoding(false).GetString(
decryptionStreamBacking.ToArray());

                if (!data1.Equals(data2))
                {
                    Console.WriteLine("Error: The two values are not equal.");
                }
                else
                {
                    Console.WriteLine("The two values are equal.");
                    Console.WriteLine("k1 iterations: {0}", k1.IterationCount);
                    Console.WriteLine("k2 iterations: {0}", k2.IterationCount);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("Error: {0}", e);
            }
        }
    }
}

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



Public Class rfc2898test
    ' Generate a key k1 with password pwd1 and salt salt1.
    ' Generate a key k2 with password pwd1 and salt salt1.
    ' Encrypt data1 with key k1 using symmetric encryption, creating edata1.
    ' Decrypt edata1 with key k2 using symmetric decryption, creating data2.
    ' data2 should equal data1.
    Private Const usageText As String = "Usage: RFC2898 <password>" + vbLf + "You must specify the password for encryption." + vbLf

    Public Shared Sub Main(ByVal passwordargs() As String)
        'If no file name is specified, write usage text.
        If passwordargs.Length = 0 Then
            Console.WriteLine(usageText)
        Else
            Dim pwd1 As String = passwordargs(0)

            Dim salt1(8) As Byte
            Using rng As RandomNumberGenerator = RandomNumberGenerator.Create()
                rng.GetBytes(salt1)
            End Using
            'data1 can be a string or contents of a file.
            Dim data1 As String = "Some test data"
            'The default iteration count is 1000 so the two methods use the same iteration count.
            Dim myIterations As Integer = 1000
            Try
                Dim k1 As New Rfc2898DeriveBytes(pwd1, salt1, myIterations)
                Dim k2 As New Rfc2898DeriveBytes(pwd1, salt1)
                ' Encrypt the data.
                Dim encAlg As Aes = Aes.Create()
                encAlg.Key = k1.GetBytes(16)
                Dim encryptionStream As New MemoryStream()
                Dim encrypt As New CryptoStream(encryptionStream, encAlg.CreateEncryptor(), CryptoStreamMode.Write)
                Dim utfD1 As Byte() = New System.Text.UTF8Encoding(False).GetBytes(data1)
                encrypt.Write(utfD1, 0, utfD1.Length)
                encrypt.FlushFinalBlock()
                encrypt.Close()
                Dim edata1 As Byte() = encryptionStream.ToArray()
                k1.Reset()

                ' Try to decrypt, thus showing it can be round-tripped.
                Dim decAlg As Aes = Aes.Create()
                decAlg.Key = k2.GetBytes(16)
                decAlg.IV = encAlg.IV
                Dim decryptionStreamBacking As New MemoryStream()
                Dim decrypt As New CryptoStream(decryptionStreamBacking, decAlg.CreateDecryptor(), CryptoStreamMode.Write)
                decrypt.Write(edata1, 0, edata1.Length)
                decrypt.Flush()
                decrypt.Close()
                k2.Reset()
                Dim data2 As String = New UTF8Encoding(False).GetString(decryptionStreamBacking.ToArray())

                If Not data1.Equals(data2) Then
                    Console.WriteLine("Error: The two values are not equal.")
                Else
                    Console.WriteLine("The two values are equal.")
                    Console.WriteLine("k1 iterations: {0}", k1.IterationCount)
                    Console.WriteLine("k2 iterations: {0}", k2.IterationCount)
                End If
            Catch e As Exception
                Console.WriteLine("Error: ", e)
            End Try
        End If

    End Sub
End Class

Hinweise

Die Salzgröße muss 8 Bytes oder größer sein.

RFC 2898 enthält Methoden zum Erstellen eines Schlüssel- und Initialisierungsvektors (IV) aus einem Kennwort und Salt. Sie können PBKDF2, eine kennwortbasierte Schlüsselableitungsfunktion, verwenden, um Schlüssel mithilfe einer pseudo-zufälligen Funktion abzuleiten, mit der Schlüssel mit nahezu unbegrenzter Länge generiert werden können. Die Rfc2898DeriveBytes Klasse kann verwendet werden, um einen abgeleiteten Schlüssel aus einem Basisschlüssel und anderen Parametern zu erzeugen. Bei einer kennwortbasierten Schlüsselableitungsfunktion ist der Basisschlüssel ein Kennwort, und die anderen Parameter sind ein Salzwert und eine Iterationsanzahl.

Weitere Informationen zu PBKDF2 finden Sie unter RFC 2898 mit dem Titel "PKCS #5: Password-Based Cryptography Specification Version 2.0". Ausführliche Informationen finden Sie in Abschnitt 5.2, "PBKDF2".

Weitere Informationen

• Kryptografiedienste

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(System::String ^ password, int saltSize);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, int saltSize);

public Rfc2898DeriveBytes(string password, int saltSize);

[System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, int saltSize);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * int -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : string * int -> System.Security.Cryptography.Rfc2898DeriveBytes

[<System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * int -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As String, saltSize As Integer)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Hinweise

Die Salzgröße muss 8 Bytes oder größer sein.

RFC 2898 enthält Methoden zum Erstellen eines Schlüssel- und Initialisierungsvektors (IV) aus einem Kennwort und Salt. Sie können PBKDF2, eine kennwortbasierte Schlüsselableitungsfunktion, verwenden, um Schlüssel mithilfe einer pseudo-zufälligen Funktion abzuleiten, mit der Schlüssel mit nahezu unbegrenzter Länge generiert werden können. Die Rfc2898DeriveBytes Klasse kann verwendet werden, um einen abgeleiteten Schlüssel aus einem Basisschlüssel und anderen Parametern zu erzeugen. Bei einer kennwortbasierten Schlüsselableitungsfunktion ist der Basisschlüssel ein Kennwort, und die anderen Parameter sind ein Salzwert und eine Iterationsanzahl.

Weitere Informationen zu PBKDF2 finden Sie unter RFC 2898 mit dem Titel "PKCS #5: Password-Based Cryptography Specification Version 2.0". Ausführliche Informationen finden Sie in Abschnitt 5.2, "PBKDF2".

Weitere Informationen

• Kryptografiedienste

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(cli::array <System::Byte> ^ password, cli::array <System::Byte> ^ salt, int iterations);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(byte[] password, byte[] salt, int iterations);

public Rfc2898DeriveBytes(byte[] password, byte[] salt, int iterations);

[System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(byte[] password, byte[] salt, int iterations);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : byte[] * byte[] * int -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : byte[] * byte[] * int -> System.Security.Cryptography.Rfc2898DeriveBytes

[<System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : byte[] * byte[] * int -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As Byte(), salt As Byte(), iterations As Integer)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Hinweise

Die Salzgröße muss 8 Bytes oder größer sein, und die Iterationsanzahl muss größer als Null sein. Die mindest empfohlene Anzahl von Iterationen beträgt 1000.

RFC 2898 enthält Methoden zum Erstellen eines Schlüssel- und Initialisierungsvektors (IV) aus einem Kennwort und Salt. Sie können PBKDF2, eine kennwortbasierte Schlüsselableitungsfunktion, verwenden, um Schlüssel mithilfe einer pseudo-zufälligen Funktion abzuleiten, mit der Schlüssel mit nahezu unbegrenzter Länge generiert werden können. Die Rfc2898DeriveBytes Klasse kann verwendet werden, um einen abgeleiteten Schlüssel aus einem Basisschlüssel und anderen Parametern zu erzeugen. Bei einer kennwortbasierten Schlüsselableitungsfunktion ist der Basisschlüssel ein Kennwort, und die anderen Parameter sind ein Salzwert und eine Iterationsanzahl.

Weitere Informationen zu PBKDF2 finden Sie unter RFC 2898 mit dem Titel "PKCS #5: Password-Based Cryptography Specification Version 2.0". Ausführliche Informationen finden Sie in Abschnitt 5.2, "PBKDF2".

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(System::String ^ password, cli::array <System::Byte> ^ salt, int iterations);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, byte[] salt, int iterations);

public Rfc2898DeriveBytes(string password, byte[] salt, int iterations);

[System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, byte[] salt, int iterations);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] * int -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] * int -> System.Security.Cryptography.Rfc2898DeriveBytes

[<System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] * int -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As String, salt As Byte(), iterations As Integer)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Beispiele

Im folgenden Codebeispiel wird die Rfc2898DeriveBytes Klasse verwendet, um zwei identische Schlüssel für die Aes Klasse zu erstellen. Anschließend werden einige Daten mit den Schlüsseln verschlüsselt und entschlüsselt.

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

public class rfc2898test
{
    // Generate a key k1 with password pwd1 and salt salt1.
    // Generate a key k2 with password pwd1 and salt salt1.
    // Encrypt data1 with key k1 using symmetric encryption, creating edata1.
    // Decrypt edata1 with key k2 using symmetric decryption, creating data2.
    // data2 should equal data1.

    private const string usageText = "Usage: RFC2898 <password>\nYou must specify the password for encryption.\n";
    public static void Main(string[] passwordargs)
    {
        //If no file name is specified, write usage text.
        if (passwordargs.Length == 0)
        {
            Console.WriteLine(usageText);
        }
        else
        {
            string pwd1 = passwordargs[0];
            // Create a byte array to hold the random value.
            byte[] salt1 = new byte[8];
            using (RandomNumberGenerator rng = RandomNumberGenerator.Create())
            {
                // Fill the array with a random value.
                rng.GetBytes(salt1);
            }

            //data1 can be a string or contents of a file.
            string data1 = "Some test data";
            //The default iteration count is 1000 so the two methods use the same iteration count.
            int myIterations = 1000;
            try
            {
                Rfc2898DeriveBytes k1 = new Rfc2898DeriveBytes(pwd1, salt1,
myIterations);
                Rfc2898DeriveBytes k2 = new Rfc2898DeriveBytes(pwd1, salt1);
                // Encrypt the data.
                Aes encAlg = Aes.Create();
                encAlg.Key = k1.GetBytes(16);
                MemoryStream encryptionStream = new MemoryStream();
                CryptoStream encrypt = new CryptoStream(encryptionStream,
encAlg.CreateEncryptor(), CryptoStreamMode.Write);
                byte[] utfD1 = new System.Text.UTF8Encoding(false).GetBytes(
data1);

                encrypt.Write(utfD1, 0, utfD1.Length);
                encrypt.FlushFinalBlock();
                encrypt.Close();
                byte[] edata1 = encryptionStream.ToArray();
                k1.Reset();

                // Try to decrypt, thus showing it can be round-tripped.
                Aes decAlg = Aes.Create();
                decAlg.Key = k2.GetBytes(16);
                decAlg.IV = encAlg.IV;
                MemoryStream decryptionStreamBacking = new MemoryStream();
                CryptoStream decrypt = new CryptoStream(
decryptionStreamBacking, decAlg.CreateDecryptor(), CryptoStreamMode.Write);
                decrypt.Write(edata1, 0, edata1.Length);
                decrypt.Flush();
                decrypt.Close();
                k2.Reset();
                string data2 = new UTF8Encoding(false).GetString(
decryptionStreamBacking.ToArray());

                if (!data1.Equals(data2))
                {
                    Console.WriteLine("Error: The two values are not equal.");
                }
                else
                {
                    Console.WriteLine("The two values are equal.");
                    Console.WriteLine("k1 iterations: {0}", k1.IterationCount);
                    Console.WriteLine("k2 iterations: {0}", k2.IterationCount);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine("Error: {0}", e);
            }
        }
    }
}

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



Public Class rfc2898test
    ' Generate a key k1 with password pwd1 and salt salt1.
    ' Generate a key k2 with password pwd1 and salt salt1.
    ' Encrypt data1 with key k1 using symmetric encryption, creating edata1.
    ' Decrypt edata1 with key k2 using symmetric decryption, creating data2.
    ' data2 should equal data1.
    Private Const usageText As String = "Usage: RFC2898 <password>" + vbLf + "You must specify the password for encryption." + vbLf

    Public Shared Sub Main(ByVal passwordargs() As String)
        'If no file name is specified, write usage text.
        If passwordargs.Length = 0 Then
            Console.WriteLine(usageText)
        Else
            Dim pwd1 As String = passwordargs(0)

            Dim salt1(8) As Byte
            Using rng As RandomNumberGenerator = RandomNumberGenerator.Create()
                rng.GetBytes(salt1)
            End Using
            'data1 can be a string or contents of a file.
            Dim data1 As String = "Some test data"
            'The default iteration count is 1000 so the two methods use the same iteration count.
            Dim myIterations As Integer = 1000
            Try
                Dim k1 As New Rfc2898DeriveBytes(pwd1, salt1, myIterations)
                Dim k2 As New Rfc2898DeriveBytes(pwd1, salt1)
                ' Encrypt the data.
                Dim encAlg As Aes = Aes.Create()
                encAlg.Key = k1.GetBytes(16)
                Dim encryptionStream As New MemoryStream()
                Dim encrypt As New CryptoStream(encryptionStream, encAlg.CreateEncryptor(), CryptoStreamMode.Write)
                Dim utfD1 As Byte() = New System.Text.UTF8Encoding(False).GetBytes(data1)
                encrypt.Write(utfD1, 0, utfD1.Length)
                encrypt.FlushFinalBlock()
                encrypt.Close()
                Dim edata1 As Byte() = encryptionStream.ToArray()
                k1.Reset()

                ' Try to decrypt, thus showing it can be round-tripped.
                Dim decAlg As Aes = Aes.Create()
                decAlg.Key = k2.GetBytes(16)
                decAlg.IV = encAlg.IV
                Dim decryptionStreamBacking As New MemoryStream()
                Dim decrypt As New CryptoStream(decryptionStreamBacking, decAlg.CreateDecryptor(), CryptoStreamMode.Write)
                decrypt.Write(edata1, 0, edata1.Length)
                decrypt.Flush()
                decrypt.Close()
                k2.Reset()
                Dim data2 As String = New UTF8Encoding(False).GetString(decryptionStreamBacking.ToArray())

                If Not data1.Equals(data2) Then
                    Console.WriteLine("Error: The two values are not equal.")
                Else
                    Console.WriteLine("The two values are equal.")
                    Console.WriteLine("k1 iterations: {0}", k1.IterationCount)
                    Console.WriteLine("k2 iterations: {0}", k2.IterationCount)
                End If
            Catch e As Exception
                Console.WriteLine("Error: ", e)
            End Try
        End If

    End Sub
End Class

Hinweise

Die Salzgröße muss 8 Bytes oder größer sein, und die Iterationsanzahl muss größer als Null sein. Die mindest empfohlene Anzahl von Iterationen beträgt 1000.

RFC 2898 enthält Methoden zum Erstellen eines Schlüssel- und Initialisierungsvektors (IV) aus einem Kennwort und Salt. Sie können PBKDF2, eine kennwortbasierte Schlüsselableitungsfunktion, verwenden, um Schlüssel mithilfe einer pseudo-zufälligen Funktion abzuleiten, mit der Schlüssel mit nahezu unbegrenzter Länge generiert werden können. Die Rfc2898DeriveBytes Klasse kann verwendet werden, um einen abgeleiteten Schlüssel aus einem Basisschlüssel und anderen Parametern zu erzeugen. Bei einer kennwortbasierten Schlüsselableitungsfunktion ist der Basisschlüssel ein Kennwort, und die anderen Parameter sind ein Salzwert und eine Iterationsanzahl.

Weitere Informationen zu PBKDF2 finden Sie unter RFC 2898 mit dem Titel "PKCS #5: Password-Based Cryptography Specification Version 2.0". Ausführliche Informationen finden Sie in Abschnitt 5.2, "PBKDF2".

Weitere Informationen

• Kryptografiedienste

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(System::String ^ password, int saltSize, int iterations);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, int saltSize, int iterations);

public Rfc2898DeriveBytes(string password, int saltSize, int iterations);

[System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, int saltSize, int iterations);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * int * int -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : string * int * int -> System.Security.Cryptography.Rfc2898DeriveBytes

[<System.Obsolete("The default hash algorithm and iteration counts in Rfc2898DeriveBytes constructors are outdated and insecure. Use a constructor that accepts the hash algorithm and the number of iterations.", DiagnosticId="SYSLIB0041", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * int * int -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As String, saltSize As Integer, iterations As Integer)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Hinweise

Die Salzgröße muss 8 Bytes oder größer sein, und die Iterationsanzahl muss größer als Null sein. Die mindest empfohlene Anzahl von Iterationen beträgt 1000.

RFC 2898 enthält Methoden zum Erstellen eines Schlüssel- und Initialisierungsvektors (IV) aus einem Kennwort und Salt. Sie können PBKDF2, eine kennwortbasierte Schlüsselableitungsfunktion, verwenden, um Schlüssel mithilfe einer pseudo-zufälligen Funktion abzuleiten, mit der Schlüssel mit nahezu unbegrenzter Länge generiert werden können. Die Rfc2898DeriveBytes Klasse kann verwendet werden, um einen abgeleiteten Schlüssel aus einem Basisschlüssel und anderen Parametern zu erzeugen. Bei einer kennwortbasierten Schlüsselableitungsfunktion ist der Basisschlüssel ein Kennwort, und die anderen Parameter sind ein Salzwert und eine Iterationsanzahl.

Weitere Informationen zu PBKDF2 finden Sie unter RFC 2898 mit dem Titel "PKCS #5: Password-Based Cryptography Specification Version 2.0". Ausführliche Informationen finden Sie in Abschnitt 5.2, "PBKDF2".

Weitere Informationen

• Kryptografiedienste

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(cli::array <System::Byte> ^ password, cli::array <System::Byte> ^ salt, int iterations, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(byte[] password, byte[] salt, int iterations, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

public Rfc2898DeriveBytes(byte[] password, byte[] salt, int iterations, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : byte[] * byte[] * int * System.Security.Cryptography.HashAlgorithmName -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : byte[] * byte[] * int * System.Security.Cryptography.HashAlgorithmName -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As Byte(), salt As Byte(), iterations As Integer, hashAlgorithm As HashAlgorithmName)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

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Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(System::String ^ password, cli::array <System::Byte> ^ salt, int iterations, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, byte[] salt, int iterations, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

public Rfc2898DeriveBytes(string password, byte[] salt, int iterations, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] * int * System.Security.Cryptography.HashAlgorithmName -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : string * byte[] * int * System.Security.Cryptography.HashAlgorithmName -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As String, salt As Byte(), iterations As Integer, hashAlgorithm As HashAlgorithmName)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

Quelle:

Rfc2898DeriveBytes.cs

public:
 Rfc2898DeriveBytes(System::String ^ password, int saltSize, int iterations, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

[System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public Rfc2898DeriveBytes(string password, int saltSize, int iterations, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

public Rfc2898DeriveBytes(string password, int saltSize, int iterations, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

[<System.Obsolete("The constructors on Rfc2898DeriveBytes are obsolete. Use the static Pbkdf2 method instead.", DiagnosticId="SYSLIB0060", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
new System.Security.Cryptography.Rfc2898DeriveBytes : string * int * int * System.Security.Cryptography.HashAlgorithmName -> System.Security.Cryptography.Rfc2898DeriveBytes

new System.Security.Cryptography.Rfc2898DeriveBytes : string * int * int * System.Security.Cryptography.HashAlgorithmName -> System.Security.Cryptography.Rfc2898DeriveBytes

Public Sub New (password As String, saltSize As Integer, iterations As Integer, hashAlgorithm As HashAlgorithmName)

Parameter

Attribute

ObsoleteAttribute

Ausnahmen