RSACryptoServiceProvider.Encrypt Metode

Referensi

Definisi

Ruang nama:: System.Security.Cryptography

Rakitan:: System.Security.Cryptography.Csp.dll

Rakitan:: System.Security.Cryptography.dll

Rakitan:: mscorlib.dll

Rakitan:: netstandard.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mengenkripsi data dengan RSA algoritma.

Overload

Encrypt(Byte[], Boolean)	Mengenkripsi data dengan RSA algoritma.
Encrypt(Byte[], RSAEncryptionPadding)	Mengenkripsi data dengan RSA algoritma menggunakan padding yang ditentukan.

Encrypt(Byte[], Boolean)

Sumber:: RSACryptoServiceProvider.Unix.cs

Sumber:: RSACryptoServiceProvider.Unix.cs

Sumber:: RSACryptoServiceProvider.Unix.cs

Mengenkripsi data dengan RSA algoritma.

public:
 cli::array <System::Byte> ^ Encrypt(cli::array <System::Byte> ^ rgb, bool fOAEP);

public byte[] Encrypt (byte[] rgb, bool fOAEP);

override this.Encrypt : byte[] * bool -> byte[]

member this.Encrypt : byte[] * bool -> byte[]

Public Function Encrypt (rgb As Byte(), fOAEP As Boolean) As Byte()

Parameter

rgb: Byte[]

Data yang akan dienkripsi.

fOAEP: Boolean

true untuk melakukan enkripsi langsung RSA menggunakan padding OAEP (hanya tersedia di komputer yang menjalankan Windows XP atau yang lebih baru); jika tidak, false untuk menggunakan padding PKCS#1 v1.5.

Mengembalikan

Byte[]

Data terenkripsi.

Pengecualian

CryptographicException

Penyedia layanan kriptografi (CSP) tidak dapat diperoleh.

-atau-

Panjang parameter lebih besar dari panjang maksimum yang rgb diizinkan.

ArgumentNullException

rgbadalah null.

Contoh

Contoh kode berikut menginisialisasi RSACryptoServiceProvider objek ke nilai kunci umum (dikirim oleh pihak lain), menghasilkan kunci sesi menggunakan Aes algoritma, lalu mengenkripsi kunci sesi menggunakan RSACryptoServiceProvider objek . Dengan menggunakan skema ini, kunci sesi dapat dikirim kembali ke pemilik kunci RSA privat dan kedua pihak dapat menggunakan kunci sesi untuk bertukar data terenkripsi.

#using <System.dll>

using namespace System;
using namespace System::Security::Cryptography;
int main()
{
   try
   {
      
      //initialze the Byte arrays to the public key information.
      array<Byte>^PublicKey = {214,46,220,83,160,73,40,39,201,155,19,202,3,11,191,178,56,74,90,36,248,103,18,144,170,163,145,87,54,61,34,220,222,207,137,149,173,14,92,120,206,222,158,28,40,24,30,16,175,108,128,35,230,118,40,121,113,125,216,130,11,24,90,48,194,240,105,44,76,34,57,249,228,125,80,38,9,136,29,117,207,139,168,181,85,137,126,10,126,242,120,247,121,8,100,12,201,171,38,226,193,180,190,117,177,87,143,242,213,11,44,180,113,93,106,99,179,68,175,211,164,116,64,148,226,254,172,147};
      array<Byte>^Exponent = {1,0,1};
      
      //Values to store encrypted symmetric keys.
      array<Byte>^EncryptedSymmetricKey;
      array<Byte>^EncryptedSymmetricIV;
      
      //Create a new instance of RSACryptoServiceProvider.
      RSACryptoServiceProvider^ RSA = gcnew RSACryptoServiceProvider;
      
      //Create a new instance of RSAParameters.
      RSAParameters RSAKeyInfo;
      
      //Set RSAKeyInfo to the public key values. 
      RSAKeyInfo.Modulus = PublicKey;
      RSAKeyInfo.Exponent = Exponent;
      
      //Import key parameters into RSA.
      RSA->ImportParameters( RSAKeyInfo );
      
      //Create a new instance of the Aes class.
      Aes^ aes = Aes::Create();
      
      //Encrypt the symmetric key and IV.
      EncryptedSymmetricKey = RSA->Encrypt( aes->Key, false );
      EncryptedSymmetricIV = RSA->Encrypt( aes->IV, false );
      Console::WriteLine( "Aes Key and IV have been encrypted with RSACryptoServiceProvider." );
   }
   catch ( CryptographicException^ e ) 
   {
      
      //Catch and display a CryptographicException  
      //to the console.
      Console::WriteLine( e->Message );
   }

}

using System;
using System.Security.Cryptography;

class RSACSPSample
{

    static void Main()
    {
        try
        {		//initialze the byte arrays to the public key information.
            byte[] PublicKey = {214,46,220,83,160,73,40,39,201,155,19,202,3,11,191,178,56,
                                   74,90,36,248,103,18,144,170,163,145,87,54,61,34,220,222,
                                   207,137,149,173,14,92,120,206,222,158,28,40,24,30,16,175,
                                   108,128,35,230,118,40,121,113,125,216,130,11,24,90,48,194,
                                   240,105,44,76,34,57,249,228,125,80,38,9,136,29,117,207,139,
                                   168,181,85,137,126,10,126,242,120,247,121,8,100,12,201,171,
                                   38,226,193,180,190,117,177,87,143,242,213,11,44,180,113,93,
                                   106,99,179,68,175,211,164,116,64,148,226,254,172,147};

            byte[] Exponent = {1,0,1};
      
            //Values to store encrypted symmetric keys.
            byte[] EncryptedSymmetricKey;
            byte[] EncryptedSymmetricIV;

            //Create a new instance of RSACryptoServiceProvider.
            RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();

            //Create a new instance of RSAParameters.
            RSAParameters RSAKeyInfo = new RSAParameters();

            //Set RSAKeyInfo to the public key values. 
            RSAKeyInfo.Modulus = PublicKey;
            RSAKeyInfo.Exponent = Exponent;

            //Import key parameters into RSA.
            RSA.ImportParameters(RSAKeyInfo);

            //Create a new instance of the Aes class.
            Aes aes = Aes.Create();

            //Encrypt the symmetric key and IV.
            EncryptedSymmetricKey = RSA.Encrypt(aes.Key, false);
            EncryptedSymmetricIV = RSA.Encrypt(aes.IV, false);

            Console.WriteLine("Aes Key and IV have been encrypted with RSACryptoServiceProvider."); 
        }
        //Catch and display a CryptographicException  
        //to the console.
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }
}

Imports System.Security.Cryptography

Class RSACSPSample

    Shared Sub Main()
        Try
            'initialze the byte arrays to the public key information.
            Dim PublicKey As Byte() = {214, 46, 220, 83, 160, 73, 40, 39, 201, 155, 19, 202, 3, 11, 191, 178, 56, 74, 90, 36, 248, 103, 18, 144, 170, 163, 145, 87, 54, 61, 34, 220, 222, 207, 137, 149, 173, 14, 92, 120, 206, 222, 158, 28, 40, 24, 30, 16, 175, 108, 128, 35, 230, 118, 40, 121, 113, 125, 216, 130, 11, 24, 90, 48, 194, 240, 105, 44, 76, 34, 57, 249, 228, 125, 80, 38, 9, 136, 29, 117, 207, 139, 168, 181, 85, 137, 126, 10, 126, 242, 120, 247, 121, 8, 100, 12, 201, 171, 38, 226, 193, 180, 190, 117, 177, 87, 143, 242, 213, 11, 44, 180, 113, 93, 106, 99, 179, 68, 175, 211, 164, 116, 64, 148, 226, 254, 172, 147}

            Dim Exponent As Byte() = {1, 0, 1}

            'Values to store encrypted symmetric keys.
            Dim EncryptedSymmetricKey() As Byte
            Dim EncryptedSymmetricIV() As Byte

            'Create a new instance of RSACryptoServiceProvider.
            Dim RSA As New RSACryptoServiceProvider()

            'Create a new instance of RSAParameters.
            Dim RSAKeyInfo As New RSAParameters()

            'Set RSAKeyInfo to the public key values. 
            RSAKeyInfo.Modulus = PublicKey
            RSAKeyInfo.Exponent = Exponent

            'Import key parameters into RSA.
            RSA.ImportParameters(RSAKeyInfo)

            'Create a new instance of the Aes class.
            Dim aes As Aes = Aes.Create()

            'Encrypt the symmetric key and IV.
            EncryptedSymmetricKey = RSA.Encrypt(aes.Key, False)
            EncryptedSymmetricIV = RSA.Encrypt(aes.IV, False)

            Console.WriteLine("Aes Key and IV have been encrypted with RSA.")

            'Catch and display a CryptographicException  
            'to the console.
        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        End Try
    End Sub
End Class

Keterangan

Tabel berikut menjelaskan padding yang didukung oleh berbagai versi Microsoft Windows dan panjang rgb maksimum yang diizinkan oleh kombinasi sistem operasi dan padding yang berbeda.

Padding	Panjang Maksimum Parameter rgb
Padding OAEP (PKCS#1 v2)	Ukuran modulus -2 -2*hLen, di mana hLen adalah ukuran hash.
Enkripsi Langsung (PKCS#1 v1.5)	Ukuran modulus - 11. (11 byte adalah padding minimum yang mungkin.)

Gunakan Decrypt untuk mendekripsi hasil metode ini.

Lihat juga

Berlaku untuk

Encrypt(Byte[], RSAEncryptionPadding)

Sumber:: RSACryptoServiceProvider.Unix.cs

Sumber:: RSACryptoServiceProvider.Unix.cs

Sumber:: RSACryptoServiceProvider.Unix.cs

Mengenkripsi data dengan RSA algoritma menggunakan padding yang ditentukan.

public:
 override cli::array <System::Byte> ^ Encrypt(cli::array <System::Byte> ^ data, System::Security::Cryptography::RSAEncryptionPadding ^ padding);

public override byte[] Encrypt (byte[] data, System.Security.Cryptography.RSAEncryptionPadding padding);

override this.Encrypt : byte[] * System.Security.Cryptography.RSAEncryptionPadding -> byte[]

Public Overrides Function Encrypt (data As Byte(), padding As RSAEncryptionPadding) As Byte()

Parameter

data: Byte[]

Data yang akan dienkripsi.

padding: RSAEncryptionPadding

Padding.

Mengembalikan

Byte[]

Data terenkripsi.

Pengecualian

ArgumentNullException

dataadalah null.

-atau-

paddingadalah null.

CryptographicException

Mode padding tidak didukung.

Keterangan

padding harus berupa RSAEncryptionPadding.Pkcs1 atau RSAEncryptionPadding.OaepSHA1.

Berlaku untuk

Bagikan melalui

RSACryptoServiceProvider.Encrypt Metode

Definisi

Overload

Encrypt(Byte[], Boolean)

Parameter

Mengembalikan

Pengecualian

Contoh

Keterangan

Lihat juga

Berlaku untuk

Encrypt(Byte[], RSAEncryptionPadding)

Parameter

Mengembalikan

Pengecualian

Keterangan

Berlaku untuk

Sumber Daya Tambahan: