CryptographicUnexpectedOperationException クラスとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

CryptographicUnexpectedOperationException クラス

暗号操作中に予期しない操作が発生するとスローされる例外。

名前空間: System.Security.Cryptography
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

<SerializableAttribute> _
<ComVisibleAttribute(True)> _
Public Class CryptographicUnexpectedOperationException
    Inherits CryptographicException

Visual Basic (使用法)

Dim instance As CryptographicUnexpectedOperationException

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public class CryptographicUnexpectedOperationException
 : CryptographicException

C++

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
public ref class CryptographicUnexpectedOperationException
 : public CryptographicException

/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
public class CryptographicUnexpectedOperationException
 extends CryptographicException

JScript

SerializableAttribute 
ComVisibleAttribute(true) 
public class CryptographicUnexpectedOperationException
 extends CryptographicException

解説

CryptographicUnexpectedOperationException は、値 0x80131431 を保持する HRESULT CORSEC_E_CRYPTO_UNEX_OPER を使用します。

CryptographicUnexpectedOperationException のインスタンスの初期プロパティ値の一覧については、コンストラクタを参照してください。

使用例

CryptographicUnexpectedOperationException クラスのメンバを使用する方法を次のコード例に示します。

Visual Basic

Imports System
Imports System.Security.Cryptography
Imports System.Runtime.Serialization

Public Class Form1
    Inherits System.Windows.Forms.Form

    ' Event handler for Run button.
    Private Sub Button1_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles
 Button1.Click

        tbxOutput.Cursor = Cursors.WaitCursor
        tbxOutput.Text = ""

        TestConstructors()
        ShowProperties()

        ' Reset the cursor and conclude application.
        tbxOutput.AppendText(vbCrLf + "This sample completed "
 + _
            "successfully; press Exit to continue.")
        tbxOutput.Cursor = Cursors.Default
    End Sub

    ' Test each public implementation of the
    ' CryptographicUnexpectedOperationException constructors.
    Private Sub TestConstructors()
        EmptyConstructor()
        StringConstructor()
        StringExceptionConstructor()
        StringStringConstructor()
    End Sub

    Private Sub EmptyConstructor()
        ' Construct a CryptographicUnexpectedOperationException
        ' with no parameters.
        Dim cryptographicException As _
            New CryptographicUnexpectedOperationException
        WriteLine("Created an empty " + _
            "CryptographicUnexpectedOperationException.")
    End Sub

    Private Sub StringConstructor()
        ' Construct a CryptographicUnexpectedOperationException using
 a custom
        ' error message.
        Dim errorMessage As String
 = "Unexpected operation exception."
        Dim cryptographicException As _
            New CryptographicUnexpectedOperationException(errorMessage)
        WriteLine("Created a CryptographicUnexpectedOperationException
 " + _
            "with the following error message: " +
 errorMessage)
    End Sub

    Private Sub StringExceptionConstructor()
        ' Construct a CryptographicUnexpectedOperationException using
 a
        ' custom error message and an inner exception.
        Dim errorMessage As String
 = "The current operation is not supported."
        Dim nullException As New
 NullReferenceException
        Dim cryptographicException As _
            New CryptographicUnexpectedOperationException( _
            errorMessage, nullException)
        Write("Created a CryptographicUnexpectedOperationException
 ")
        Write("with the following error message: "
 + errorMessage)
        WriteLine(" and inner exception: " + nullException.ToString())
    End Sub

    Private Sub StringStringConstructor()
        ' Create a CryptographicUnexpectedOperationException using
        ' a time format and the current date.
        Dim dateFormat As String
 = "{0:t}"
        Dim timeStamp As String
 = DateTime.Now.ToString()
        Dim cryptographicException As New
 _
            CryptographicUnexpectedOperationException(dateFormat, timeStamp)
        Write("Created a CryptographicUnexpectedOperationException
 with ")
        Write(dateFormat + " as the format and " +
 timeStamp)
        WriteLine(" as the message.")
    End Sub

    ' Construct an invalid DSACryptoServiceProvider to throw a
    ' CryptographicUnexpectedOperationException for introspection.
    Private Sub ShowProperties()
        ' Attempting to encode an OID greater than 127 bytes is not
 supported
        ' and will throw an exception.
        Dim veryLongNumber As String
 = "1234567890.1234567890."

        For i As Int16 = 0 To
 4 Step 1
            veryLongNumber += veryLongNumber
        Next
        veryLongNumber += "0"

        Try
            Dim tooLongOID() As Byte
            tooLongOID = CryptoConfig.EncodeOID(veryLongNumber)

        Catch ex As CryptographicUnexpectedOperationException
            ' Retrieve the link to the Help file for the exception.
            Dim helpLink As String
 = ex.HelpLink

            ' Retrieve the exception that caused the current
            ' CryptographicUnexpectedOperationException.
            Dim innerException As System.Exception
 = ex.InnerException
            Dim innerExceptionMessage As String
 = ""
            If (Not innerException Is
 Nothing) Then
                innerExceptionMessage = innerException.ToString()
            End If

            ' Retrieve the message that describes the exception.
            Dim message As String
 = ex.Message

            ' Retrieve the name of the application that caused the exception.
            Dim exceptionSource As String
 = ex.Source

            ' Retrieve the call stack at the time the exception occurred.
            Dim stackTrace As String
 = ex.StackTrace

            ' Retrieve the method that threw the exception.
            Dim targetSite As System.Reflection.MethodBase
            targetSite = ex.TargetSite
            Dim siteName As String
 = targetSite.Name

            ' Retrieve the entire exception as a single string.
            Dim entireException As String
 = ex.ToString()

            ' GetObjectData
            setSerializationInfo(ex)

            ' Get the root exception that caused the current
            ' CryptographicUnexpectedOperationException.
            Dim baseException As System.Exception
 = ex.GetBaseException()
            Dim baseExceptionMessage As String
 = ""
            If (Not baseException Is
 Nothing) Then
                baseExceptionMessage = baseException.Message
            End If

            WriteLine("Caught an expected exception:")
            WriteLine(entireException)

            WriteLine(vbCrLf + "Properties of the exception are
 as follows:")
            WriteLine("Message: " + message)
            WriteLine("Source: " + exceptionSource)
            WriteLine("Stack trace: " + stackTrace)
            WriteLine("Help link: " + helpLink)
            WriteLine("Target site's name: " + siteName)
            WriteLine("Base exception message: " +
 baseExceptionMessage)
            WriteLine("Inner exception message: "
 + innerExceptionMessage)

        End Try
    End Sub

    Private Sub setSerializationInfo( _
        ByRef ex As CryptographicUnexpectedOperationException)

        ' Insert information about the exception into a serialized object.
        Dim formatConverter As New
 FormatterConverter
        Dim serializationInfo As _
            New SerializationInfo(ex.GetType(), formatConverter)
        Dim streamingContext As _
            New StreamingContext(StreamingContextStates.All)

        ex.GetObjectData(serializationInfo, streamingContext)
    End Sub

    ' Write specified message to the output textbox.
    Private Sub Write(ByVal
 message As String)
        tbxOutput.AppendText(message)
    End Sub

    ' Write specified message with a carriage return to the output textbox.
    Private Sub WriteLine(ByVal
 message As String)
        tbxOutput.AppendText(message + vbCrLf)
    End Sub

    ' Event handler for Exit button.
    Private Sub Button2_Click( _
        ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles
 Button2.Click

        Application.Exit()
    End Sub
#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides
 Sub Dispose(ByVal disposing As
 Boolean)
        If disposing Then
            If Not (components Is
 Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Panel2 As
 System.Windows.Forms.Panel
    Friend WithEvents Panel1 As
 System.Windows.Forms.Panel
    Friend WithEvents Button1 As
 System.Windows.Forms.Button
    Friend WithEvents Button2 As
 System.Windows.Forms.Button
    Friend WithEvents tbxOutput As
 System.Windows.Forms.RichTextBox
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.Panel2 = New System.Windows.Forms.Panel
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.Panel1 = New System.Windows.Forms.Panel
        Me.tbxOutput = New System.Windows.Forms.RichTextBox
        Me.Panel2.SuspendLayout()
        Me.Panel1.SuspendLayout()
        Me.SuspendLayout()
        '
        'Panel2
        '
        Me.Panel2.Controls.Add(Me.Button1)
        Me.Panel2.Controls.Add(Me.Button2)
        Me.Panel2.Dock = System.Windows.Forms.DockStyle.Bottom
        Me.Panel2.DockPadding.All = 20
        Me.Panel2.Location = New System.Drawing.Point(0,
 320)
        Me.Panel2.Name = "Panel2"
        Me.Panel2.Size = New System.Drawing.Size(616,
 64)
        Me.Panel2.TabIndex = 1
        '
        'Button1
        '
        Me.Button1.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button1.Font = New System.Drawing.Font(
 _
            "Microsoft Sans Serif", 9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button1.Location = New System.Drawing.Point(446,
 20)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(75,
 24)
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "&Run"
        '
        'Button2
        '
        Me.Button2.Dock = System.Windows.Forms.DockStyle.Right
        Me.Button2.Font = New System.Drawing.Font("Microsoft
 Sans Serif", _
            9.0!, _
            System.Drawing.FontStyle.Regular, _
            System.Drawing.GraphicsUnit.Point, _
            CType(0, Byte))
        Me.Button2.Location = New System.Drawing.Point(521,
 20)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(75,
 24)
        Me.Button2.TabIndex = 3
        Me.Button2.Text = "E&xit"
        '
        'Panel1
        '
        Me.Panel1.Controls.Add(Me.tbxOutput)
        Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.Panel1.DockPadding.All = 20
        Me.Panel1.Location = New System.Drawing.Point(0,
 0)
        Me.Panel1.Name = "Panel1"
        Me.Panel1.Size = New System.Drawing.Size(616,
 320)
        Me.Panel1.TabIndex = 2
        '
        'tbxOutput
        '
        Me.tbxOutput.AccessibleDescription = _
            "Displays output from application."
        Me.tbxOutput.AccessibleName = "Output
 textbox."
        Me.tbxOutput.Dock = System.Windows.Forms.DockStyle.Fill
        Me.tbxOutput.Location = New System.Drawing.Point(20,
 20)
        Me.tbxOutput.Name = "tbxOutput"
        Me.tbxOutput.Size = New System.Drawing.Size(576,
 280)
        Me.tbxOutput.TabIndex = 1
        Me.tbxOutput.Text = "Click the Run
 button to run the application."
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6,
 15)
        Me.ClientSize = New System.Drawing.Size(616,
 384)
        Me.Controls.Add(Me.Panel1)
        Me.Controls.Add(Me.Panel2)
        Me.Name = "Form1"
        Me.Text = "CryptographicUnexpectedOperationException"
        Me.Panel2.ResumeLayout(False)
        Me.Panel1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region
End Class
'
' This sample produces the following output:
'
' Created an empty CryptographicUnexpectedOperationException.
' Created a CryptographicUnexpectedOperationException with the following
 error
' message: Unexpected operation exception.
' Created a CryptographicUnexpectedOperationException with the following
 error
' message: The current operation is not supported. and inner exception:
' System.NullReferenceException: Object reference not set to an instance
 of an
' object.
' Created a CryptographicUnexpectedOperationException with {0:t} as
 the format
' and 2/24/2004 2:29:32 PM as the message.
' Caught an expected exception:
' System.Security.Cryptography.CryptographicUnexpectedOperationException:
' Encoded OID length is too large (greater than 0x7f bytes).
'  at System.Security.Cryptography.CryptoConfig.EncodeOID(String str)
'  at WindowsApplication1.Form1.ShowProperties() in 
' C:\WindowsApplication1\Form1.vb:line 103
'
' Properties of the exception are as follows:
' Message: Encoded OID length is too large (greater than 0x7f bytes).
' Source: mscorlib
' Stack trace:    at System.Security.Cryptography.CryptoConfig.EncodeOID(
' String str) at WindowsApplication1.Form1.ShowProperties() in
' C:\WindowsApplication1\Form1.vb:line 103
' Help link: 
' Target site's name: EncodeOID
' Base exception message: Encoded OID length is too large (greater than
 0x7f
' bytes).
' Inner exception message: 
' 
' This sample completed successfully; press Exit to continue.

using System;
using System.Security.Cryptography;
using System.Runtime.Serialization;

class Members
{
    [STAThread]
    static void Main(string[]
 args)
    {
        Members testRun = new Members();

        testRun.TestConstructors();
        testRun.ShowProperties();

        Console.WriteLine("Sample ended successfully, " +
            " press Enter to continue.");
        Console.ReadLine();
    }

    // Test each public implementation of the
    // CryptographicUnexpectedOperationException constructors.
    private void TestConstructors()
    {
        EmptyConstructor();
        StringConstructor();
        StringExceptionConstructor();
        StringStringConstructor();
    }

    private void EmptyConstructor()
    {
        // Construct a CryptographicUnexpectedOperationException
        // with no parameters.
        CryptographicUnexpectedOperationException cryptographicException =
            new CryptographicUnexpectedOperationException();
        Console.WriteLine("Created an empty " + 
            "CryptographicUnexpectedOperationException.");
    }

    private void StringConstructor()
    {
        // Construct a CryptographicUnexpectedOperationException
        // using a custom error message.
        string errorMessage = ("Unexpected operation exception.");
        CryptographicUnexpectedOperationException cryptographicException =
            new CryptographicUnexpectedOperationException(errorMessage);
        Console.WriteLine("Created a " + 
            "CryptographicUnexpectedOperationException with the following "
 +
            " error message: " + errorMessage);
    }

    private void StringExceptionConstructor()
    {
        // Construct a CryptographicUnexpectedOperationException using
 a 
        // custom error message and an inner exception.
        string errorMessage = ("The current operation is
 not supported.");
        NullReferenceException nullException = new NullReferenceException();
        CryptographicUnexpectedOperationException cryptographicException = 
            new CryptographicUnexpectedOperationException(
            errorMessage, nullException);
        Console.WriteLine("Created a " +
            "CryptographicUnexpectedOperationException with the following"
 +
            "error message: " + errorMessage + " and inner exception:
 "
            + nullException.ToString());
    }

    private void StringStringConstructor()
    {
        // Create a CryptographicUnexpectedOperationException using
 a time
        // format and the current date.
        string dateFormat = "{0:t}";
        string timeStamp = (DateTime.Now.ToString());
        CryptographicUnexpectedOperationException cryptographicException = 
            new CryptographicUnexpectedOperationException(
            dateFormat, timeStamp);
        Console.WriteLine("Created a " + 
            "CryptographicUnexpectedOperationException with (" + dateFormat
 +
            ") as the format and (" + timeStamp + ") as the message.");
    }

    // Construct an invalid DSACryptoServiceProvider to throw a
    // CryptographicUnexpectedOperationException for introspection.
    private void ShowProperties()
    {
        // Attempting to encode an OID greater than 127 bytes is not
 supported
        // and will throw an exception.
        string veryLongNumber = "1234567890.1234567890.";
        for (int i=0; i < 4; i++)
        {
            veryLongNumber += veryLongNumber;
        }
        veryLongNumber += "0";
        try 
        {
            byte[] tooLongOID = CryptoConfig.EncodeOID(veryLongNumber);
        }
        catch(CryptographicUnexpectedOperationException ex)
        {
            // Retrieve the link to the Help file for the exception.
            string helpLink = ex.HelpLink;
            
            // Retrieve the exception that caused the current
            // CryptographicUnexpectedOperationException.
            System.Exception innerException = ex.InnerException;
            string innerExceptionMessage = "";
            if (innerException != null)
            {
                innerExceptionMessage = innerException.ToString();
            }

            // Retrieve the message that describes the exception.
            string message = ex.Message;

            // Retrieve the name of the application that caused the
 exception.
            string exceptionSource = ex.Source;

            // Retrieve the call stack at the time the exception occurred.
            string stackTrace = ex.StackTrace;

            // Retrieve the method that threw the exception.
            System.Reflection.MethodBase targetSite = ex.TargetSite;
            string siteName = targetSite.Name;

            // Retrieve the entire exception as a single string.
            string entireException = ex.ToString();

            // GetObjectData
            setSerializationInfo(ref ex);

            // Get the root exception that caused the current
            // CryptographicUnexpectedOperationException.
            System.Exception baseException = ex.GetBaseException();
            string baseExceptionMessage = "";
            if (baseException != null)
            {
                baseExceptionMessage = baseException.Message;
            }

            Console.WriteLine("Caught an expected exception:");
            Console.WriteLine(entireException + "\n");

            Console.WriteLine("Properties of the exception are as follows:");
            Console.WriteLine("Message: " + message);
            Console.WriteLine("Source: " + exceptionSource);
            Console.WriteLine("Stack trace: " + stackTrace);
            Console.WriteLine("Help link: " + helpLink);
            Console.WriteLine("Target site's name: " + siteName);
            Console.WriteLine("Base exception message: " + 
                baseExceptionMessage);
            Console.WriteLine("Inner exception message: " + 
                innerExceptionMessage);
        }
    }

    private void setSerializationInfo(
        ref CryptographicUnexpectedOperationException ex)
    {
        // Insert information about the exception into a serialized
 object.
        FormatterConverter formatConverter = new FormatterConverter();
        SerializationInfo serializationInfo =
            new SerializationInfo(ex.GetType(), formatConverter);
        StreamingContext streamingContext =
            new StreamingContext(StreamingContextStates.All);

        ex.GetObjectData(serializationInfo,streamingContext);
    }
}
//
// This sample produces the following output:
//
// Created an empty CryptographicUnexpectedOperationException.
// Created a CryptographicUnexpectedOperationException with the following
 
// error message: Unexpected operation exception.
// Created a CryptographicUnexpectedOperationException with the following
// error message: The current operation is not supported. and inner
 exception:
// System.NullReferenceException: Object reference not set to an instance
 of
// an object.
// Created a CryptographicUnexpectedOperationException with ({0:t})
 as the
// format and (2/24/2004 2:35:22 PM) as the message.
// Caught an expected exception:
// System.Security.Cryptography.CryptographicUnexpectedOperationException:
 
// Encoded OID length is too large (greater than 0x7f bytes).
//  at System.Security.Cryptography.CryptoConfig.EncodeOID(String str)
//  at Members.ShowProperties() in c:\consoleapplication1\class1.cs:line
 106
// 
// Properties of the exception are as follows:
// Message: Encoded OID length is too large (greater than 0x7f bytes).
// Source: mscorlib
// Stack trace:    at System.Security.Cryptography.CryptoConfig.EncodeOID(
// String str)
//  at Members.ShowProperties() in c:\consoleapplication1\class1.cs:line
 106
// Help link:
// Target site's name: EncodeOID
// Base exception message: Encoded OID length is too large (greater
 than 0x7f
// bytes).
// Inner exception message:
// Sample ended successfully,  press Enter to continue.

継承階層

System.Object
   System.Exception
     System.SystemException
       System.Security.Cryptography.CryptographicException
        System.Security.Cryptography.CryptographicUnexpectedOperationException

スレッドセーフ

この型の public static (Visual Basic では Shared) メンバはすべて、スレッドセーフです。インスタンスメンバの場合は、スレッドセーフであるとは限りません。

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition