다음을 통해 공유


AesCryptoServiceProvider.CreateEncryptor 메서드

정의

대칭 AES encryptor 개체를 만듭니다.

오버로드

CreateEncryptor()

현재 키 및 IV(초기화 벡터)를 사용하여 대칭 AES encryptor 개체를 만듭니다.

CreateEncryptor(Byte[], Byte[])

지정된 키와 IV(초기화 벡터)를 사용하여 대칭 encryptor 개체를 만듭니다.

CreateEncryptor()

Source:
AesCryptoServiceProvider.cs
Source:
AesCryptoServiceProvider.cs
Source:
AesCryptoServiceProvider.cs

현재 키 및 IV(초기화 벡터)를 사용하여 대칭 AES encryptor 개체를 만듭니다.

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

반환

대칭 AES 암호기 개체입니다.

특성

적용 대상

CreateEncryptor(Byte[], Byte[])

Source:
AesCryptoServiceProvider.cs
Source:
AesCryptoServiceProvider.cs
Source:
AesCryptoServiceProvider.cs

지정된 키와 IV(초기화 벡터)를 사용하여 대칭 encryptor 개체를 만듭니다.

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

매개 변수

rgbKeykey
Byte[]

대칭 알고리즘에 사용할 비밀 키입니다.

rgbIViv
Byte[]

대칭 알고리즘에 사용할 초기화 벡터입니다.

반환

대칭 AES 암호기 개체입니다.

특성

예외

key 또는 iv 매개 변수가 null인 경우

key이 잘못되었습니다.

예제

다음 예제에서는 메서드를 사용하여 AesCryptoServiceProvider.CreateEncryptor 메시지를 암호화하는 방법을 보여줍니다. 이 코드 예제는에 대해 제공 된 큰 예제의 일부는 AesCryptoServiceProvider 클래스입니다.

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()

설명

iv 매개 변수의 크기를 확인하려면 및 LegalBlockSizes 속성의 코드 예제 LegalKeySizeskey 참조하세요.

적용 대상