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PowerTCP SSL Sockets for .NET |
| Dart.PowerTCP.SslSockets Namespace > SymmetricCryptoStream Class : Algorithm Property |
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PowerTCP SSL Sockets for .NET |
| Dart.PowerTCP.SslSockets Namespace > SymmetricCryptoStream Class : Algorithm Property |
Exposes the algorithm cryptographic service provider used to initialize the SymmetricCryptoStream.
[Visual Basic]
Public ReadOnly Property Algorithm As SymmetricAlgorithm[C#]
public SymmetricAlgorithm Algorithm {get;}[C++]
public: __property SymmetricAlgorithm* get_Algorithm();[C++/CLI]
public:
property SymmetricAlgorithm^ Algorithm {
SymmetricAlgorithm^ get();
}Use this property to gain information about the AlgorithmType chosen. For example, you can access the legal key sizes for this algorithm via the SymmetricAlgorithm.LegalKeySizes property.
The following example demonstrates displaying information about a symmetric algorithm by accessing the SymmetricCryptoStream.Algorithm property.
[Visual Basic]
Private Sub DisplayAlgoInfo(ByVal algorithm as AlgorithmType)
' Create dummy key and data
Dim key As Byte() = System.Text.Encoding.Default.GetBytes("test key")
Dim data As Byte() = System.Text.Encoding.Default.GetBytes("test data")
Dim mem as New MemoryStream(data)
' Initialize a new SymmetricCryptoStream
Dim sc as New SymmetricCryptoStream(algorithm, key, mem)
' Display info about the algorithm used
txtData.Text = "Block size: " + sc.Algorithm.BlockSize + vbCrLf
txtData.Text += "Feedback size: " + sc.Algorithm.FeedbackSize + vbCRLF
txtData.Text += "Key size: " + sc.Algorithm.KeySize + vbCrLf
txtData.Text += "Mode: " + sc.Algorithm.Mode + vbCrLf
txtData.Text += "Legal block sizes:" + vbCrLf
Dim ks as KeySizes
For Each ks in sc.Algorithm.LegalBlockSizes
Dim i as Integer
For i=ks.MinSize To ks.MaxSize Step ks.SkipSize
txtData.Text += i + vbCrLf
If ks.SkipSize = 0 Then
Exit For
End If
Next
Next
txtData.Text += "Legal key sizes:" + vbCrLf
For Each ks in sc.Algorithm.LegalKeySizes
Dim i as Integer
For i=ks.MinSize To ks.MaxSize Step ks.SkipSize
txtData.Text += i + vbCrLf
If ks.SkipSize = 0 Then
Exit For
End If
Next
Next
End Sub
[C#]
private void DisplayAlgoInfo(AlgorithmType algorithm)
{
// Create dummy key and data
byte[] key = System.Text.Encoding.Default.GetBytes("test
key");
byte[] data = System.Text.Encoding.Default.GetBytes("test
data");
MemoryStream mem = new MemoryStream(data);
// Initialize a new SymmetricCryptoStream
SymmetricCryptoStream sc = new SymmetricCryptoStream(algorithm,
key, mem);
// Display info about the algorithm used
txtData.Text = "Block size: " + sc.Algorithm.BlockSize +
"\r\n";
txtData.Text += "Feedback size: " + sc.Algorithm.FeedbackSize + "\r\n";
txtData.Text += "Key size: " + sc.Algorithm.KeySize + "\r\n";
txtData.Text += "Mode: " + sc.Algorithm.Mode + "\r\n";
txtData.Text += "Legal block sizes:\r\n";
foreach(KeySizes ks in sc.Algorithm.LegalBlockSizes)
for(int i=ks.MinSize;
i<=ks.MaxSize; i+=ks.SkipSize)
{
txtData.Text += i + "\r\n";
if(ks.SkipSize == 0)
break;
}
txtData.Text += "Legal key sizes:\r\n";
foreach(KeySizes ks in sc.Algorithm.LegalKeySizes)
for(int i=ks.MinSize; i<=ks.MaxSize; i+=ks.SkipSize)
{
txtData.Text += i + "\r\n";
if(ks.SkipSize == 0)
break;
}
}
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
SymmetricCryptoStream Class | SymmetricCryptoStream Members
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Documentation version 1.1.2.0.
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