AesCryptoServiceProvider.CreateEncryptor Methode

Definitie

Hiermee maakt u een symmetrisch AES-versleutelingsobject.

Overloads

Name Description
CreateEncryptor()

Hiermee maakt u een symmetrisch AES-versleutelingsobject met behulp van de huidige sleutel en initialisatievector (IV).

CreateEncryptor(Byte[], Byte[])

Hiermee maakt u een symmetrisch encryptorobject met behulp van de opgegeven sleutel- en initialisatievector (IV).

CreateEncryptor()

Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs

Hiermee maakt u een symmetrisch AES-versleutelingsobject met behulp van de huidige sleutel en initialisatievector (IV).

public:
 override System::Security::Cryptography::ICryptoTransform ^ CreateEncryptor();
public override System.Security.Cryptography.ICryptoTransform CreateEncryptor();
[System.Security.SecurityCritical]
public override System.Security.Cryptography.ICryptoTransform CreateEncryptor();
override this.CreateEncryptor : unit -> System.Security.Cryptography.ICryptoTransform
[<System.Security.SecurityCritical>]
override this.CreateEncryptor : unit -> System.Security.Cryptography.ICryptoTransform
Public Overrides Function CreateEncryptor () As ICryptoTransform

Retouren

Een symmetrisch AES-versleutelingsobject.

Kenmerken

Van toepassing op

CreateEncryptor(Byte[], Byte[])

Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs
Bron:
AesCryptoServiceProvider.cs

Hiermee maakt u een symmetrisch encryptorobject met behulp van de opgegeven sleutel- en initialisatievector (IV).

public:
 override System::Security::Cryptography::ICryptoTransform ^ CreateEncryptor(cli::array <System::Byte> ^ rgbKey, cli::array <System::Byte> ^ rgbIV);
public:
 override System::Security::Cryptography::ICryptoTransform ^ CreateEncryptor(cli::array <System::Byte> ^ key, cli::array <System::Byte> ^ iv);
public override System.Security.Cryptography.ICryptoTransform CreateEncryptor(byte[] rgbKey, byte[]? rgbIV);
public override System.Security.Cryptography.ICryptoTransform CreateEncryptor(byte[] rgbKey, byte[] rgbIV);
[System.Security.SecurityCritical]
public override System.Security.Cryptography.ICryptoTransform CreateEncryptor(byte[] key, byte[] iv);
public override System.Security.Cryptography.ICryptoTransform CreateEncryptor(byte[] key, byte[] iv);
override this.CreateEncryptor : byte[] * byte[] -> System.Security.Cryptography.ICryptoTransform
[<System.Security.SecurityCritical>]
override this.CreateEncryptor : byte[] * byte[] -> System.Security.Cryptography.ICryptoTransform
Public Overrides Function CreateEncryptor (rgbKey As Byte(), rgbIV As Byte()) As ICryptoTransform
Public Overrides Function CreateEncryptor (key As Byte(), iv As Byte()) As ICryptoTransform

Parameters

rgbKeykey
Byte[]

De geheime sleutel die moet worden gebruikt voor het symmetrische algoritme.

rgbIViv
Byte[]

De initialisatievector die moet worden gebruikt voor het symmetrische algoritme.

Retouren

Een symmetrisch AES-versleutelingsobject.

Kenmerken

Uitzonderingen

De key of iv parameter is null.

key is ongeldig.

Voorbeelden

In het volgende voorbeeld ziet u hoe u de AesCryptoServiceProvider.CreateEncryptor methode gebruikt om een bericht te versleutelen. Dit codevoorbeeld maakt deel uit van een groter voorbeeld voor de AesCryptoServiceProvider klasse.

static byte[] EncryptStringToBytes_Aes(string plainText, byte[] Key, byte[] IV)
{
    // Check arguments.
    if (plainText == null || plainText.Length <= 0)
        throw new ArgumentNullException("plainText");
    if (Key == null || Key.Length <= 0)
        throw new ArgumentNullException("Key");
    if (IV == null || IV.Length <= 0)
        throw new ArgumentNullException("IV");
    byte[] encrypted;

    // Create an AesCryptoServiceProvider object
    // with the specified key and IV.
    using (AesCryptoServiceProvider aesAlg = new AesCryptoServiceProvider())
    {
        aesAlg.Key = Key;
        aesAlg.IV = IV;

        // Create an encryptor to perform the stream transform.
        ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);

        // Create the streams used for encryption.
        using (MemoryStream msEncrypt = new MemoryStream())
        {
            using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
            {
                using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
                {
                    //Write all data to the stream.
                    swEncrypt.Write(plainText);
                }
            }

            encrypted = msEncrypt.ToArray();
        }
    }

    // Return the encrypted bytes from the memory stream.
    return encrypted;
}
Shared Function EncryptStringToBytes_Aes(ByVal plainText As String, ByVal Key() As Byte, ByVal IV() As Byte) As Byte() 
    ' Check arguments.
    If plainText Is Nothing OrElse plainText.Length <= 0 Then
        Throw New ArgumentNullException("plainText")
    End If
    If Key Is Nothing OrElse Key.Length <= 0 Then
        Throw New ArgumentNullException("Key")
    End If
    If IV Is Nothing OrElse IV.Length <= 0 Then
        Throw New ArgumentNullException("IV")
    End If
    Dim encrypted() As Byte
    
    ' Create an AesCryptoServiceProvider object
    ' with the specified key and IV.
    Using aesAlg As New AesCryptoServiceProvider()

        aesAlg.Key = Key
        aesAlg.IV = IV

        ' Create an encryptor to perform the stream transform.
        Dim encryptor As ICryptoTransform = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV)

        ' Create the streams used for encryption.
        Dim msEncrypt As New MemoryStream()
        Using csEncrypt As New CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write)
            Using swEncrypt As New StreamWriter(csEncrypt)
                'Write all data to the stream.
                swEncrypt.Write(plainText)
            End Using
            encrypted = msEncrypt.ToArray()

        End Using
    End Using

    ' Return the encrypted bytes from the memory stream.
    Return encrypted

End Function 'EncryptStringToBytes_Aes
let encryptStringToBytes_Aes (plainText: string, key : byte[], iv : byte[]) : byte[] =

    // Check arguments.
    if (isNull plainText || plainText.Length <= 0) then nullArg "plainText"
    if (isNull key || key.Length <= 0) then nullArg "key"
    if (isNull iv || iv.Length <= 0) then nullArg "iv"
    
    // Create an AesCryptoServiceProvider object
    // with the specified key and IV.
    use aesAlg = new AesCryptoServiceProvider()
    aesAlg.Key <- key
    aesAlg.IV <- iv

    // Create an encryptor to perform the stream transform.
    let encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV)

    // Create the streams used for encryption.
    use msEncrypt = new MemoryStream()
    use csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write)
    use swEncrypt = new StreamWriter(csEncrypt)
    
    //Write all data to the stream.
    swEncrypt.Write(plainText)
    swEncrypt.Flush()
    
    // Return the encrypted bytes from the memory stream.
    msEncrypt.ToArray()

Opmerkingen

Zie de codevoorbeelden in de LegalKeySizes en LegalBlockSizes eigenschappen om de grootte van de key en iv parameters te bepalen.

Van toepassing op