replace rijndael etc (#4415)

* replace rijndael etc

* restore snippet tags

* address feedback

* AesManaged-->Aes

Author: tdykstra

samples/snippets/cpp/VS_Snippets_CLR/rfc28981/CPP/rfc28981.cpp

@@ -46,7 +46,7 @@ int main()
          //</SNIPPET4>
 
          // Encrypt the data.
-         TripleDES^ encAlg = TripleDES::Create();
+         Aes^ encAlg = Aes::Create();
          encAlg->Key = k1->GetBytes( 16 );
          MemoryStream^ encryptionStream = gcnew MemoryStream;
          CryptoStream^ encrypt = gcnew CryptoStream( encryptionStream,encAlg->CreateEncryptor(),CryptoStreamMode::Write );
@@ -60,7 +60,7 @@ int main()
          k1->Reset();
 
          // Try to decrypt, thus showing it can be round-tripped.
-         TripleDES^ decAlg = TripleDES::Create();
+         Aes^ decAlg = Aes::Create();
          decAlg->Key = k2->GetBytes( 16 );
          decAlg->IV = encAlg->IV;
          MemoryStream^ decryptionStreamBacking = gcnew MemoryStream;

samples/snippets/cpp/VS_Snippets_CLR_System/system.Security.Cryptography.RSACryptoServiceProvider.Encrypt/CPP/sample.cpp

@@ -31,13 +31,13 @@ int main()
       //Import key parameters into RSA.
       RSA->ImportParameters( RSAKeyInfo );
 
-      //Create a new instance of the RijndaelManaged class.
-      RijndaelManaged^ RM = gcnew RijndaelManaged;
+      //Create a new instance of the Aes class.
+      Aes^ aes = gcnew Aes;
 
       //Encrypt the symmetric key and IV.
-      EncryptedSymmetricKey = RSA->Encrypt( RM->Key, false );
-      EncryptedSymmetricIV = RSA->Encrypt( RM->IV, false );
-      Console::WriteLine( "RijndaelManaged Key and IV have been encrypted with RSACryptoServiceProvider." );
+      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 ) 
    {

samples/snippets/csharp/VS_Snippets_CLR/rfc28981/CS/rfc28981.cs

@@ -48,7 +48,7 @@ public static void Main(string[] passwordargs)
                 Rfc2898DeriveBytes k2 = new Rfc2898DeriveBytes(pwd1, salt1);
                 //</SNIPPET4>
                 // Encrypt the data.
-                TripleDES encAlg = TripleDES.Create();
+                Aes encAlg = Aes.Create();
                 encAlg.Key = k1.GetBytes(16);
                 MemoryStream encryptionStream = new MemoryStream();
                 CryptoStream encrypt = new CryptoStream(encryptionStream,
@@ -64,7 +64,7 @@ public static void Main(string[] passwordargs)
                 k1.Reset();
 
                 // Try to decrypt, thus showing it can be round-tripped.
-                TripleDES decAlg = TripleDES.Create();
+                Aes decAlg = Aes.Create();
                 decAlg.Key = k2.GetBytes(16);
                 decAlg.IV = encAlg.IV;
                 MemoryStream decryptionStreamBacking = new MemoryStream();

samples/snippets/csharp/VS_Snippets_CLR/x509certificate2/cs/program.cs

@@ -82,17 +82,16 @@ private static X509Certificate2 GetCertificateFromStore(string certName)
         // Encrypt a file using a public key.
         private static void EncryptFile(string inFile, RSACryptoServiceProvider rsaPublicKey)
         {
-            using (AesManaged aesManaged = new AesManaged())
+            using (Aes aes = new Aes())
             {
-                // Create instance of AesManaged for
+                // Create instance of Aes for
                 // symetric encryption of the data.
-                aesManaged.KeySize = 256;
-                aesManaged.BlockSize = 128;
-                aesManaged.Mode = CipherMode.CBC;
-                using (ICryptoTransform transform = aesManaged.CreateEncryptor())
+                aes.KeySize = 256;
+                aes.Mode = CipherMode.CBC;
+                using (ICryptoTransform transform = aes.CreateEncryptor())
                 {
                     RSAPKCS1KeyExchangeFormatter keyFormatter = new RSAPKCS1KeyExchangeFormatter(rsaPublicKey);
-                    byte[] keyEncrypted = keyFormatter.CreateKeyExchange(aesManaged.Key, aesManaged.GetType());
+                    byte[] keyEncrypted = keyFormatter.CreateKeyExchange(aes.Key, aes.GetType());
 
                     // Create byte arrays to contain
                     // the length values of the key and IV.
@@ -101,7 +100,7 @@ private static void EncryptFile(string inFile, RSACryptoServiceProvider rsaPubli
 
                     int lKey = keyEncrypted.Length;
                     LenK = BitConverter.GetBytes(lKey);
-                    int lIV = aesManaged.IV.Length;
+                    int lIV = aes.IV.Length;
                     LenIV = BitConverter.GetBytes(lIV);
 
                     // Write the following to the FileStream
@@ -123,7 +122,7 @@ private static void EncryptFile(string inFile, RSACryptoServiceProvider rsaPubli
                         outFs.Write(LenK, 0, 4);
                         outFs.Write(LenIV, 0, 4);
                         outFs.Write(keyEncrypted, 0, lKey);
-                        outFs.Write(aesManaged.IV, 0, lIV);
+                        outFs.Write(aes.IV, 0, lIV);
 
                         // Now write the cipher text using
                         // a CryptoStream for encrypting.
@@ -137,7 +136,7 @@ private static void EncryptFile(string inFile, RSACryptoServiceProvider rsaPubli
                             int offset = 0;
 
                             // blockSizeBytes can be any arbitrary size.
-                            int blockSizeBytes = aesManaged.BlockSize / 8;
+                            int blockSizeBytes = aes.BlockSize / 8;
                             byte[] data = new byte[blockSizeBytes];
                             int bytesRead = 0;
 
@@ -169,13 +168,12 @@ private static void EncryptFile(string inFile, RSACryptoServiceProvider rsaPubli
         private static void DecryptFile(string inFile, RSACryptoServiceProvider rsaPrivateKey)
         {
 
-            // Create instance of AesManaged for
+            // Create instance of Aes for
             // symetric decryption of the data.
-            using (AesManaged aesManaged = new AesManaged())
+            using (Aes aes = new Aes())
             {
-                aesManaged.KeySize = 256;
-                aesManaged.BlockSize = 128;
-                aesManaged.Mode = CipherMode.CBC;
+                aes.KeySize = 256;
+                aes.Mode = CipherMode.CBC;
 
                 // Create byte arrays to get the length of
                 // the encrypted key and IV.
@@ -202,14 +200,14 @@ private static void DecryptFile(string inFile, RSACryptoServiceProvider rsaPriva
                     int lenK = BitConverter.ToInt32(LenK, 0);
                     int lenIV = BitConverter.ToInt32(LenIV, 0);
 
-                    // Determine the start postition of
-                    // the ciphter text (startC)
+                    // Determine the start position of
+                    // the cipher text (startC)
                     // and its length(lenC).
                     int startC = lenK + lenIV + 8;
                     int lenC = (int)inFs.Length - startC;
 
                     // Create the byte arrays for
-                    // the encrypted AesManaged key,
+                    // the encrypted Aes key,
                     // the IV, and the cipher text.
                     byte[] KeyEncrypted = new byte[lenK];
                     byte[] IV = new byte[lenIV];
@@ -224,11 +222,11 @@ private static void DecryptFile(string inFile, RSACryptoServiceProvider rsaPriva
                     Directory.CreateDirectory(decrFolder);
                     //<Snippet10>
                     // Use RSACryptoServiceProvider
-                    // to decrypt the AesManaged key.
+                    // to decrypt the Aes key.
                     byte[] KeyDecrypted = rsaPrivateKey.Decrypt(KeyEncrypted, false);
 
                     // Decrypt the key.
-                    using (ICryptoTransform transform = aesManaged.CreateDecryptor(KeyDecrypted, IV))
+                    using (ICryptoTransform transform = aes.CreateDecryptor(KeyDecrypted, IV))
                     {
                         //</Snippet10>
 
@@ -242,7 +240,7 @@ private static void DecryptFile(string inFile, RSACryptoServiceProvider rsaPriva
                             int count = 0;
                             int offset = 0;
 
-                            int blockSizeBytes = aesManaged.BlockSize / 8;
+                            int blockSizeBytes = aes.BlockSize / 8;
                             byte[] data = new byte[blockSizeBytes];
 
                             // By decrypting a chunk a time,

samples/snippets/csharp/VS_Snippets_CLR_System/system.Security.Cryptography.RSACryptoServiceProvider.Encrypt/CS/sample.cs

@@ -37,14 +37,14 @@ static void Main()
 			//Import key parameters into RSA.
 			RSA.ImportParameters(RSAKeyInfo);
 
-			//Create a new instance of the RijndaelManaged class.
-			RijndaelManaged RM = new RijndaelManaged();
+			//Create a new instance of the Aes class.
+			Aes aes = new Aes();
 
 			//Encrypt the symmetric key and IV.
-			EncryptedSymmetricKey = RSA.Encrypt(RM.Key, false);
-			EncryptedSymmetricIV = RSA.Encrypt(RM.IV, false);
+			EncryptedSymmetricKey = RSA.Encrypt(aes.Key, false);
+			EncryptedSymmetricIV = RSA.Encrypt(aes.IV, false);
 
-			Console.WriteLine("RijndaelManaged Key and IV have been encrypted with RSACryptoServiceProvider."); 
+			Console.WriteLine("Aes Key and IV have been encrypted with RSACryptoServiceProvider."); 
 		}
 		//Catch and display a CryptographicException  
 		//to the console.

samples/snippets/visualbasic/VS_Snippets_CLR/rfc28981/vb/rfc28981.vb

@@ -38,7 +38,7 @@ Public Class rfc2898test
                 Dim k2 As New Rfc2898DeriveBytes(pwd1, salt1)
                 '</SNIPPET4>
                 ' Encrypt the data.
-                Dim encAlg As TripleDES = TripleDES.Create()
+                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)
@@ -51,7 +51,7 @@ Public Class rfc2898test
                 k1.Reset()
 
                 ' Try to decrypt, thus showing it can be round-tripped.
-                Dim decAlg As TripleDES = TripleDES.Create()
+                Dim decAlg As Aes = Aes.Create()
                 decAlg.Key = k2.GetBytes(16)
                 decAlg.IV = encAlg.IV
                 Dim decryptionStreamBacking As New MemoryStream()

samples/snippets/visualbasic/VS_Snippets_CLR/x509certificate2/vb/program.vb

@@ -77,17 +77,16 @@ Class Program
     ' <Snippet3>
     ' Encrypt a file using a public key.
     Private Shared Sub EncryptFile(ByVal inFile As String, ByVal rsaPublicKey As RSACryptoServiceProvider)
-        Dim aesManaged As New AesManaged()
+        Dim aes As New Aes()
         Try
-            ' Create instance of AesManaged for
+            ' Create instance of Aes for
             ' symetric encryption of the data.
-            aesManaged.KeySize = 256
-            aesManaged.BlockSize = 128
-            aesManaged.Mode = CipherMode.CBC
-            Dim transform As ICryptoTransform = aesManaged.CreateEncryptor()
+            aes.KeySize = 256
+            aes.Mode = CipherMode.CBC
+            Dim transform As ICryptoTransform = aes.CreateEncryptor()
             Try
                 Dim keyFormatter As New RSAPKCS1KeyExchangeFormatter(rsaPublicKey)
-                Dim keyEncrypted As Byte() = keyFormatter.CreateKeyExchange(aesManaged.Key, aesManaged.GetType())
+                Dim keyEncrypted As Byte() = keyFormatter.CreateKeyExchange(aes.Key, aes.GetType())
 
                 ' Create byte arrays to contain
                 ' the length values of the key and IV.
@@ -96,7 +95,7 @@ Class Program
 
                 Dim lKey As Integer = keyEncrypted.Length
                 LenK = BitConverter.GetBytes(lKey)
-                Dim lIV As Integer = aesManaged.IV.Length
+                Dim lIV As Integer = aesM.IV.Length
                 LenIV = BitConverter.GetBytes(lIV)
 
                 ' Write the following to the FileStream
@@ -117,7 +116,7 @@ Class Program
                     outFs.Write(LenK, 0, 4)
                     outFs.Write(LenIV, 0, 4)
                     outFs.Write(keyEncrypted, 0, lKey)
-                    outFs.Write(aesManaged.IV, 0, lIV)
+                    outFs.Write(aes.IV, 0, lIV)
 
                     ' Now write the cipher text using
                     ' a CryptoStream for encrypting.
@@ -131,7 +130,7 @@ Class Program
                         Dim offset As Integer = 0
 
                         ' blockSizeBytes can be any arbitrary size.
-                        Dim blockSizeBytes As Integer = aesManaged.BlockSize / 8
+                        Dim blockSizeBytes As Integer = aes.BlockSize / 8
                         Dim data(blockSizeBytes) As Byte
                         Dim bytesRead As Integer = 0
 
@@ -160,7 +159,7 @@ Class Program
                 transform.Dispose()
             End Try
         Finally
-            aesManaged.Dispose()
+            aes.Dispose()
         End Try
 
     End Sub
@@ -171,13 +170,12 @@ Class Program
     ' Decrypt a file using a private key.
     Private Shared Sub DecryptFile(ByVal inFile As String, ByVal rsaPrivateKey As RSACryptoServiceProvider)
 
-        ' Create instance of AesManaged for
+        ' Create instance of Aes for
         ' symetric decryption of the data.
-        Dim aesManaged As New AesManaged()
+        Dim aes As New Aes()
         Try
-            aesManaged.KeySize = 256
-            aesManaged.BlockSize = 128
-            aesManaged.Mode = CipherMode.CBC
+            aes.KeySize = 256
+            aes.Mode = CipherMode.CBC
 
             ' Create byte arrays to get the length of
             ' the encrypted key and IV.
@@ -211,7 +209,7 @@ Class Program
                 Dim lenC As Integer = (CType(inFs.Length, Integer) - startC)
 
                 ' Create the byte arrays for
-                ' the encrypted Rijndael key,
+                ' the encrypted AES key,
                 ' the IV, and the cipher text.
                 Dim KeyEncrypted() As Byte = New Byte(lengthK - 1) {}
                 Dim IV() As Byte = New Byte(lengthIV - 1) {}
@@ -226,11 +224,11 @@ Class Program
                 Directory.CreateDirectory(decrFolder)
                 '<Snippet10>
                 ' Use RSACryptoServiceProvider
-                ' to decrypt the Rijndael key.
+                ' to decrypt the AES key.
                 Dim KeyDecrypted As Byte() = rsaPrivateKey.Decrypt(KeyEncrypted, False)
 
                 ' Decrypt the key.
-                Dim transform As ICryptoTransform = aesManaged.CreateDecryptor(KeyDecrypted, IV)
+                Dim transform As ICryptoTransform = aes.CreateDecryptor(KeyDecrypted, IV)
                 '</Snippet10>
                 ' Decrypt the cipher text from
                 ' from the FileSteam of the encrypted
@@ -246,7 +244,7 @@ Class Program
                     Dim count As Integer = 0
                     Dim offset As Integer = 0
 
-                    Dim blockSizeBytes As Integer = aesManaged.BlockSize / 8
+                    Dim blockSizeBytes As Integer = aes.BlockSize / 8
                     Dim data(blockSizeBytes) As Byte
 
                     ' By decrypting a chunk a time,
@@ -280,7 +278,7 @@ Class Program
             End Try
 
         Finally
-            aesManaged.Dispose()
+            aes.Dispose()
         End Try
 
 

samples/snippets/visualbasic/VS_Snippets_CLR_System/system.Security.Cryptography.RSACryptoServiceProvider.Encrypt/VB/sample.vb

@@ -27,14 +27,14 @@ Class RSACSPSample
             'Import key parameters into RSA.
             RSA.ImportParameters(RSAKeyInfo)
 
-            'Create a new instance of the RijndaelManaged class.
-            Dim RM As New RijndaelManaged()
+            'Create a new instance of the Aes class.
+            Dim aes As New Aes()
 
             'Encrypt the symmetric key and IV.
-            EncryptedSymmetricKey = RSA.Encrypt(RM.Key, False)
-            EncryptedSymmetricIV = RSA.Encrypt(RM.IV, False)
+            EncryptedSymmetricKey = RSA.Encrypt(aes.Key, False)
+            EncryptedSymmetricIV = RSA.Encrypt(aes.IV, False)
 
-            Console.WriteLine("RijndaelManaged Key and IV have been encrypted with RSACryptoServiceProvider.")
+            Console.WriteLine("Aes Key and IV have been encrypted with RSACryptoServiceProvider.")
 
             'Catch and display a CryptographicException  
             'to the console.