PasswordDeriveBytes 建構函式

定義

命名空間:: System.Security.Cryptography

組件:: netstandard.dll, System.Security.Cryptography.dll

組件:: netstandard.dll, System.Security.Cryptography.Csp.dll

組件:: netstandard.dll, System.Security.Cryptography.dll, System.Security.Cryptography.Csp.dll

組件:: System.Security.Cryptography.Csp.dll

組件:: mscorlib.dll

組件:: netstandard.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

初始化 PasswordDeriveBytes 類別的新執行個體。

多載

名稱	Description
PasswordDeriveBytes(Byte[], Byte[])	初始化一個新的類別實例 PasswordDeriveBytes ，指定用於導出金鑰的密碼與金鑰鹽。
PasswordDeriveBytes(String, Byte[])	初始化一個新的類別實例 PasswordDeriveBytes ，並使用密碼與金鑰鹽來推導金鑰。
PasswordDeriveBytes(Byte[], Byte[], CspParameters)	初始化一個新的類別實例 PasswordDeriveBytes ，指定密碼、金鑰鹽及用於推導金鑰的密碼、金鑰鹽與密碼服務提供者（CSP）。
PasswordDeriveBytes(String, Byte[], CspParameters)	初始化該類別的新實例 PasswordDeriveBytes ，並使用密碼、金鑰鹽及密碼服務提供者（CSP）參數來推導金鑰。
PasswordDeriveBytes(Byte[], Byte[], String, Int32)	初始化一個新的類別實例 PasswordDeriveBytes ，指定密碼、金鑰鹽、雜湊名稱及用於推導金鑰的迭代次數。
PasswordDeriveBytes(String, Byte[], String, Int32)	初始化一個新的類別實例 PasswordDeriveBytes ，包含密碼、金鑰鹽、雜湊名稱及用於推導金鑰的迭代次數。
PasswordDeriveBytes(Byte[], Byte[], String, Int32, CspParameters)	初始化該類別的新實例 PasswordDeriveBytes ，指定密碼、金鑰鹽、雜湊名稱、迭代次數及用於推導金鑰的密碼服務提供者（CSP）。
PasswordDeriveBytes(String, Byte[], String, Int32, CspParameters)	初始化一個新的類別實例 PasswordDeriveBytes ，並使用密碼、金鑰鹽、雜湊名稱、迭代次數及密碼學服務提供者（CSP）參數來推導金鑰。

PasswordDeriveBytes(Byte[], Byte[])

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化一個新的類別實例 PasswordDeriveBytes ，指定用於導出金鑰的密碼與金鑰鹽。

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

public PasswordDeriveBytes(byte[] password, byte[]? salt);

public PasswordDeriveBytes(byte[] password, byte[] salt);

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

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

參數

password: Byte[]

用來推導金鑰的密碼。

salt: Byte[]

用來推導金鑰的 key salt。

範例

以下範例程式碼使用類別 PasswordDeriveBytes 從密碼建立金鑰。

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

public class PasswordDerivedBytesExample
{

    public static void Main(String[] args)
    {

        // Get a password from the user.
        Console.WriteLine("Enter a password to produce a key:");

        byte[] pwd = Encoding.Unicode.GetBytes(Console.ReadLine());

        byte[] salt = CreateRandomSalt(7);

        // Create a TripleDESCryptoServiceProvider object.
        TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();

        try
        {
            Console.WriteLine("Creating a key with PasswordDeriveBytes...");

            // Create a PasswordDeriveBytes object and then create
            // a TripleDES key from the password and salt.
            PasswordDeriveBytes pdb = new PasswordDeriveBytes(pwd, salt);


            // Create the key and set it to the Key property
            // of the TripleDESCryptoServiceProvider object.
            // This example uses the SHA1 algorithm.
            // Due to collision problems with SHA1, Microsoft recommends SHA256 or better.
            tdes.Key = pdb.CryptDeriveKey("TripleDES", "SHA1", 192, tdes.IV);


            Console.WriteLine("Operation complete.");
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
        finally
        {
            // Clear the buffers
            ClearBytes(pwd);
            ClearBytes(salt);

            // Clear the key.
            tdes.Clear();
        }

        Console.ReadLine();
    }

    //////////////////////////////////////////////////////////
    // Helper methods:
    // CreateRandomSalt: Generates a random salt value of the
    //                   specified length.
    //
    // ClearBytes: Clear the bytes in a buffer so they can't
    //             later be read from memory.
    //////////////////////////////////////////////////////////

    public static byte[] CreateRandomSalt(int length)
    {
        // Create a buffer
        byte[] randBytes;

        if (length >= 1)
        {
            randBytes = new byte[length];
        }
        else
        {
            randBytes = new byte[1];
        }

        using (RandomNumberGenerator rng = RandomNumberGenerator.Create())
        {
            // Fill the buffer with random bytes.
            rng.GetBytes(randBytes);
        }

        // return the bytes.
        return randBytes;
    }

    public static void ClearBytes(byte[] buffer)
    {
        // Check arguments.
        if (buffer == null)
        {
            throw new ArgumentException("buffer");
        }

        // Set each byte in the buffer to 0.
        for (int x = 0; x < buffer.Length; x++)
        {
            buffer[x] = 0;
        }
    }
}

Imports System.Security.Cryptography
Imports System.Text



Module PasswordDerivedBytesExample


    Sub Main(ByVal args() As String)

        ' Get a password from the user.
        Console.WriteLine("Enter a password to produce a key:")

        Dim pwd As Byte() = Encoding.Unicode.GetBytes(Console.ReadLine())

        Dim salt As Byte() = CreateRandomSalt(7)

        ' Create a TripleDESCryptoServiceProvider object.
        Dim tdes As New TripleDESCryptoServiceProvider()

        Try
            Console.WriteLine("Creating a key with PasswordDeriveBytes...")

            ' Create a PasswordDeriveBytes object and then create 
            ' a TripleDES key from the password and salt.
            Dim pdb As New PasswordDeriveBytes(pwd, salt)


            ' Create the key and set it to the Key property
            ' of the TripleDESCryptoServiceProvider object.
            ' This example uses the SHA1 algorithm.
            ' Due to collision problems with SHA1, Microsoft recommends SHA256 or better.
            tdes.Key = pdb.CryptDeriveKey("TripleDES", "SHA1", 192, tdes.IV)


            Console.WriteLine("Operation complete.")
        Catch e As Exception
            Console.WriteLine(e.Message)
        Finally
            ' Clear the buffers
            ClearBytes(pwd)
            ClearBytes(salt)

            ' Clear the key.
            tdes.Clear()
        End Try

        Console.ReadLine()

    End Sub


    '********************************************************
    '* Helper methods:
    '* createRandomSalt: Generates a random salt value of the 
    '*                   specified length.  
    '*
    '* clearBytes: Clear the bytes in a buffer so they can't 
    '*             later be read from memory.
    '********************************************************
    Function CreateRandomSalt(ByVal length As Integer) As Byte()
        ' Create a buffer
        Dim randBytes() As Byte

        If length >= 1 Then
            randBytes = New Byte(length) {}
        Else
            randBytes = New Byte(0) {}
        End If

        ' Create a new RandomNumberGenerator.
        Using rand As RandomNumberGenerator = RandomNumberGenerator.Create()
            ' Fill the buffer with random bytes.
            rand.GetBytes(randBytes)
        End Using

        ' return the bytes.
        Return randBytes

    End Function


    Sub ClearBytes(ByVal buffer() As Byte)
        ' Check arguments.
        If buffer Is Nothing Then
            Throw New ArgumentException("buffer")
        End If

        ' Set each byte in the buffer to 0.
        Dim x As Integer
        For x = 0 To buffer.Length - 1
            buffer(x) = 0
        Next x

    End Sub
End Module

備註

Important

千萬不要在原始碼裡硬寫密碼。硬編碼密碼可透過 Ildasm.exe（IL 反組譯器）、十六進位編輯器，或直接在文字編輯器如 Notepad.exe中開啟組合語言擷取。

另請參閱

密碼編譯服務

適用於

PasswordDeriveBytes(String, Byte[])

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化一個新的類別實例 PasswordDeriveBytes ，並使用密碼與金鑰鹽來推導金鑰。

public:
 PasswordDeriveBytes(System::String ^ strPassword, cli::array <System::Byte> ^ rgbSalt);

public PasswordDeriveBytes(string strPassword, byte[]? rgbSalt);

public PasswordDeriveBytes(string strPassword, byte[] rgbSalt);

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

Public Sub New (strPassword As String, rgbSalt As Byte())

參數

strPassword: String

用來推導金鑰的密碼。

rgbSalt: Byte[]

用來推導金鑰的 key salt。

備註

Important

千萬不要在原始碼裡硬寫密碼。硬編碼密碼可透過 Ildasm.exe（IL 反組譯器）工具、十六進位編輯器，或直接在文字編輯器（如 notepad.exe）中開啟組合語言擷取。

另請參閱

密碼編譯服務

適用於

PasswordDeriveBytes(Byte[], Byte[], CspParameters)

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化一個新的類別實例 PasswordDeriveBytes ，指定密碼、金鑰鹽及用於推導金鑰的密碼、金鑰鹽與密碼服務提供者（CSP）。

public:
 PasswordDeriveBytes(cli::array <System::Byte> ^ password, cli::array <System::Byte> ^ salt, System::Security::Cryptography::CspParameters ^ cspParams);

public PasswordDeriveBytes(byte[] password, byte[]? salt, System.Security.Cryptography.CspParameters? cspParams);

public PasswordDeriveBytes(byte[] password, byte[] salt, System.Security.Cryptography.CspParameters cspParams);

new System.Security.Cryptography.PasswordDeriveBytes : byte[] * byte[] * System.Security.Cryptography.CspParameters -> System.Security.Cryptography.PasswordDeriveBytes

Public Sub New (password As Byte(), salt As Byte(), cspParams As CspParameters)

參數

password: Byte[]

用來推導金鑰的密碼。

salt: Byte[]

用來推導金鑰的 key salt。

cspParams: CspParameters

操作所需的密碼服務提供者（CSP）參數。

範例

以下範例程式碼使用類別 PasswordDeriveBytes 從密碼建立金鑰。

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

public class PasswordDerivedBytesExample
{

    public static void Main(String[] args)
    {

        // Get a password from the user.
        Console.WriteLine("Enter a password to produce a key:");

        byte[] pwd = Encoding.Unicode.GetBytes(Console.ReadLine());

        byte[] salt = CreateRandomSalt(7);

        // Create a TripleDESCryptoServiceProvider object.
        TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();

        try
        {
            Console.WriteLine("Creating a key with PasswordDeriveBytes...");

            // Create a PasswordDeriveBytes object and then create
            // a TripleDES key from the password and salt.
            PasswordDeriveBytes pdb = new PasswordDeriveBytes(pwd, salt);


            // Create the key and set it to the Key property
            // of the TripleDESCryptoServiceProvider object.
            // This example uses the SHA1 algorithm.
            // Due to collision problems with SHA1, Microsoft recommends SHA256 or better.
            tdes.Key = pdb.CryptDeriveKey("TripleDES", "SHA1", 192, tdes.IV);


            Console.WriteLine("Operation complete.");
        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
        }
        finally
        {
            // Clear the buffers
            ClearBytes(pwd);
            ClearBytes(salt);

            // Clear the key.
            tdes.Clear();
        }

        Console.ReadLine();
    }

    //////////////////////////////////////////////////////////
    // Helper methods:
    // CreateRandomSalt: Generates a random salt value of the
    //                   specified length.
    //
    // ClearBytes: Clear the bytes in a buffer so they can't
    //             later be read from memory.
    //////////////////////////////////////////////////////////

    public static byte[] CreateRandomSalt(int length)
    {
        // Create a buffer
        byte[] randBytes;

        if (length >= 1)
        {
            randBytes = new byte[length];
        }
        else
        {
            randBytes = new byte[1];
        }

        using (RandomNumberGenerator rng = RandomNumberGenerator.Create())
        {
            // Fill the buffer with random bytes.
            rng.GetBytes(randBytes);
        }

        // return the bytes.
        return randBytes;
    }

    public static void ClearBytes(byte[] buffer)
    {
        // Check arguments.
        if (buffer == null)
        {
            throw new ArgumentException("buffer");
        }

        // Set each byte in the buffer to 0.
        for (int x = 0; x < buffer.Length; x++)
        {
            buffer[x] = 0;
        }
    }
}

Imports System.Security.Cryptography
Imports System.Text



Module PasswordDerivedBytesExample


    Sub Main(ByVal args() As String)

        ' Get a password from the user.
        Console.WriteLine("Enter a password to produce a key:")

        Dim pwd As Byte() = Encoding.Unicode.GetBytes(Console.ReadLine())

        Dim salt As Byte() = CreateRandomSalt(7)

        ' Create a TripleDESCryptoServiceProvider object.
        Dim tdes As New TripleDESCryptoServiceProvider()

        Try
            Console.WriteLine("Creating a key with PasswordDeriveBytes...")

            ' Create a PasswordDeriveBytes object and then create 
            ' a TripleDES key from the password and salt.
            Dim pdb As New PasswordDeriveBytes(pwd, salt)


            ' Create the key and set it to the Key property
            ' of the TripleDESCryptoServiceProvider object.
            ' This example uses the SHA1 algorithm.
            ' Due to collision problems with SHA1, Microsoft recommends SHA256 or better.
            tdes.Key = pdb.CryptDeriveKey("TripleDES", "SHA1", 192, tdes.IV)


            Console.WriteLine("Operation complete.")
        Catch e As Exception
            Console.WriteLine(e.Message)
        Finally
            ' Clear the buffers
            ClearBytes(pwd)
            ClearBytes(salt)

            ' Clear the key.
            tdes.Clear()
        End Try

        Console.ReadLine()

    End Sub


    '********************************************************
    '* Helper methods:
    '* createRandomSalt: Generates a random salt value of the 
    '*                   specified length.  
    '*
    '* clearBytes: Clear the bytes in a buffer so they can't 
    '*             later be read from memory.
    '********************************************************
    Function CreateRandomSalt(ByVal length As Integer) As Byte()
        ' Create a buffer
        Dim randBytes() As Byte

        If length >= 1 Then
            randBytes = New Byte(length) {}
        Else
            randBytes = New Byte(0) {}
        End If

        ' Create a new RandomNumberGenerator.
        Using rand As RandomNumberGenerator = RandomNumberGenerator.Create()
            ' Fill the buffer with random bytes.
            rand.GetBytes(randBytes)
        End Using

        ' return the bytes.
        Return randBytes

    End Function


    Sub ClearBytes(ByVal buffer() As Byte)
        ' Check arguments.
        If buffer Is Nothing Then
            Throw New ArgumentException("buffer")
        End If

        ' Set each byte in the buffer to 0.
        Dim x As Integer
        For x = 0 To buffer.Length - 1
            buffer(x) = 0
        Next x

    End Sub
End Module

備註

Important

千萬不要在原始碼裡硬寫密碼。硬編碼密碼可透過 Ildasm.exe（IL 反組譯器） l（十六進位編輯器）或直接在文字編輯器（如 Notepad.exe）中開啟組合檔取得。

另請參閱

密碼編譯服務

適用於

PasswordDeriveBytes(String, Byte[], CspParameters)

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化該類別的新實例 PasswordDeriveBytes ，並使用密碼、金鑰鹽及密碼服務提供者（CSP）參數來推導金鑰。

public:
 PasswordDeriveBytes(System::String ^ strPassword, cli::array <System::Byte> ^ rgbSalt, System::Security::Cryptography::CspParameters ^ cspParams);

public PasswordDeriveBytes(string strPassword, byte[]? rgbSalt, System.Security.Cryptography.CspParameters? cspParams);

public PasswordDeriveBytes(string strPassword, byte[] rgbSalt, System.Security.Cryptography.CspParameters cspParams);

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

Public Sub New (strPassword As String, rgbSalt As Byte(), cspParams As CspParameters)

參數

strPassword: String

用來推導金鑰的密碼。

rgbSalt: Byte[]

用來推導金鑰的 key salt。

cspParams: CspParameters

操作的CSP參數。

備註

Important

另請參閱

密碼編譯服務

適用於

PasswordDeriveBytes(Byte[], Byte[], String, Int32)

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化一個新的類別實例 PasswordDeriveBytes ，指定密碼、金鑰鹽、雜湊名稱及用於推導金鑰的迭代次數。

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

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")]
public PasswordDeriveBytes(byte[] password, byte[]? salt, string hashName, int iterations);

public PasswordDeriveBytes(byte[] password, byte[]? salt, string hashName, int iterations);

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

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")>]
new System.Security.Cryptography.PasswordDeriveBytes : byte[] * byte[] * string * int -> System.Security.Cryptography.PasswordDeriveBytes

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

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

參數

password: Byte[]

用來推導金鑰的密碼。

salt: Byte[]

用來推導金鑰的 key salt。

hashName: String

用來推導金鑰的雜湊演算法。

iterations: Int32

用來推導金鑰的迭代次數。

屬性: RequiresUnreferencedCodeAttribute

備註

Important

千萬不要在原始碼裡硬寫密碼。硬編碼密碼可透過 Ildasm.exe（IL 反組譯器）、十六進位編輯器，或直接在文字編輯器如 Notepad.exe中開啟組合語言擷取。

關於雜湊演算法名稱的列表，請參見類別 CryptoConfig 。

另請參閱

適用於

PasswordDeriveBytes(String, Byte[], String, Int32)

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化一個新的類別實例 PasswordDeriveBytes ，包含密碼、金鑰鹽、雜湊名稱及用於推導金鑰的迭代次數。

public:
 PasswordDeriveBytes(System::String ^ strPassword, cli::array <System::Byte> ^ rgbSalt, System::String ^ strHashName, int iterations);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")]
public PasswordDeriveBytes(string strPassword, byte[]? rgbSalt, string strHashName, int iterations);

public PasswordDeriveBytes(string strPassword, byte[]? rgbSalt, string strHashName, int iterations);

public PasswordDeriveBytes(string strPassword, byte[] rgbSalt, string strHashName, int iterations);

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")>]
new System.Security.Cryptography.PasswordDeriveBytes : string * byte[] * string * int -> System.Security.Cryptography.PasswordDeriveBytes

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

Public Sub New (strPassword As String, rgbSalt As Byte(), strHashName As String, iterations As Integer)

參數

strPassword: String

用來推導金鑰的密碼。

rgbSalt: Byte[]

用來推導金鑰的 key salt。

strHashName: String

這是該操作的雜湊演算法名稱。

iterations: Int32

運算的迭代次數。

屬性: RequiresUnreferencedCodeAttribute

備註

Important

關於雜湊演算法名稱的列表，請參見類別 CryptoConfig 。

另請參閱

適用於

PasswordDeriveBytes(Byte[], Byte[], String, Int32, CspParameters)

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化該類別的新實例 PasswordDeriveBytes ，指定密碼、金鑰鹽、雜湊名稱、迭代次數及用於推導金鑰的密碼服務提供者（CSP）。

public:
 PasswordDeriveBytes(cli::array <System::Byte> ^ password, cli::array <System::Byte> ^ salt, System::String ^ hashName, int iterations, System::Security::Cryptography::CspParameters ^ cspParams);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")]
public PasswordDeriveBytes(byte[] password, byte[]? salt, string hashName, int iterations, System.Security.Cryptography.CspParameters? cspParams);

public PasswordDeriveBytes(byte[] password, byte[]? salt, string hashName, int iterations, System.Security.Cryptography.CspParameters? cspParams);

public PasswordDeriveBytes(byte[] password, byte[] salt, string hashName, int iterations, System.Security.Cryptography.CspParameters cspParams);

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")>]
new System.Security.Cryptography.PasswordDeriveBytes : byte[] * byte[] * string * int * System.Security.Cryptography.CspParameters -> System.Security.Cryptography.PasswordDeriveBytes

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

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

參數

password: Byte[]

用來推導金鑰的密碼。

salt: Byte[]

用來推導金鑰的 key salt。

hashName: String

用來推導金鑰的雜湊演算法。

iterations: Int32

用來推導金鑰的迭代次數。

cspParams: CspParameters

操作所需的密碼服務提供者（CSP）參數。

屬性: RequiresUnreferencedCodeAttribute

備註

Important

千萬不要在原始碼裡硬寫密碼。硬編碼密碼可透過 Ildasm.exe（IL 反組譯器）、十六進位編輯器，或直接在文字編輯器如 Notepad.exe中開啟組合語言擷取。

關於雜湊演算法名稱的列表，請參見類別 CryptoConfig 。

另請參閱

適用於

PasswordDeriveBytes(String, Byte[], String, Int32, CspParameters)

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

來源:: PasswordDeriveBytes.cs

初始化一個新的類別實例 PasswordDeriveBytes ，並使用密碼、金鑰鹽、雜湊名稱、迭代次數及密碼學服務提供者（CSP）參數來推導金鑰。

public:
 PasswordDeriveBytes(System::String ^ strPassword, cli::array <System::Byte> ^ rgbSalt, System::String ^ strHashName, int iterations, System::Security::Cryptography::CspParameters ^ cspParams);

[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")]
public PasswordDeriveBytes(string strPassword, byte[]? rgbSalt, string strHashName, int iterations, System.Security.Cryptography.CspParameters? cspParams);

public PasswordDeriveBytes(string strPassword, byte[]? rgbSalt, string strHashName, int iterations, System.Security.Cryptography.CspParameters? cspParams);

public PasswordDeriveBytes(string strPassword, byte[] rgbSalt, string strHashName, int iterations, System.Security.Cryptography.CspParameters cspParams);

[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("The hash implementation might be removed. Ensure the referenced hash algorithm is not trimmed.")>]
new System.Security.Cryptography.PasswordDeriveBytes : string * byte[] * string * int * System.Security.Cryptography.CspParameters -> System.Security.Cryptography.PasswordDeriveBytes

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

Public Sub New (strPassword As String, rgbSalt As Byte(), strHashName As String, iterations As Integer, cspParams As CspParameters)

參數

strPassword: String

用來推導金鑰的密碼。

rgbSalt: Byte[]

用來推導金鑰的 key salt。

strHashName: String

這是該操作的雜湊演算法名稱。

iterations: Int32

運算的迭代次數。

cspParams: CspParameters

操作的CSP參數。

屬性: RequiresUnreferencedCodeAttribute

備註

Important

關於雜湊演算法名稱的列表，請參見類別 CryptoConfig 。

另請參閱

適用於

意見反應

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