X509ChainPolicy クラス
定義
重要
一部の情報は、リリース前に大きく変更される可能性があるプレリリースされた製品に関するものです。 Microsoft は、ここに記載されている情報について、明示または黙示を問わず、一切保証しません。
X509 証明書チェーンを構築する際に適用されるチェーン ポリシーを表します。 このクラスは継承できません。
public ref class X509ChainPolicy sealed
public sealed class X509ChainPolicy
type X509ChainPolicy = class
Public NotInheritable Class X509ChainPolicy
- 継承
-
X509ChainPolicy
例
次の例では、現在のユーザーの個人用証明書ストアを開き、ユーザーが証明書を選択し、証明書と証明書チェーン情報をコンソールに書き込みます。 出力は、選択した証明書によって異なります。
#using <System.dll>
#using <System.Security.dll>
using namespace System;
using namespace System::Security::Cryptography;
using namespace System::Security::Cryptography::X509Certificates;
using namespace System::IO;
int main()
{
//Create new X509 store from local certificate store.
X509Store ^ store = gcnew X509Store( "MY",StoreLocation::CurrentUser );
store->Open( static_cast<OpenFlags>(OpenFlags::OpenExistingOnly | OpenFlags::ReadWrite) );
//Output store information.
Console::WriteLine( "Store Information" );
Console::WriteLine( "Number of certificates in the store: {0}", store->Certificates->Count );
Console::WriteLine( "Store location: {0}", store->Location );
Console::WriteLine( "Store name: {0} {1}", store->Name, Environment::NewLine );
//Put certificates from the store into a collection so user can select one.
X509Certificate2Collection ^ fcollection = dynamic_cast<X509Certificate2Collection^>(store->Certificates);
X509Certificate2Collection ^ collection = X509Certificate2UI::SelectFromCollection(fcollection, "Select an X509 Certificate","Choose a certificate to examine.",X509SelectionFlag::SingleSelection);
X509Certificate2 ^ certificate = collection[ 0 ];
X509Certificate2UI::DisplayCertificate(certificate);
//Output chain information of the selected certificate.
X509Chain ^ ch = gcnew X509Chain;
ch->ChainPolicy->RevocationMode = X509RevocationMode::Online;
ch->Build( certificate );
Console::WriteLine( "Chain Information" );
Console::WriteLine( "Chain revocation flag: {0}", ch->ChainPolicy->RevocationFlag );
Console::WriteLine( "Chain revocation mode: {0}", ch->ChainPolicy->RevocationMode );
Console::WriteLine( "Chain verification flag: {0}", ch->ChainPolicy->VerificationFlags );
Console::WriteLine( "Chain verification time: {0}", ch->ChainPolicy->VerificationTime );
Console::WriteLine( "Chain status length: {0}", ch->ChainStatus->Length );
Console::WriteLine( "Chain application policy count: {0}", ch->ChainPolicy->ApplicationPolicy->Count );
Console::WriteLine( "Chain certificate policy count: {0} {1}", ch->ChainPolicy->CertificatePolicy->Count, Environment::NewLine );
//Output chain element information.
Console::WriteLine( "Chain Element Information" );
Console::WriteLine( "Number of chain elements: {0}", ch->ChainElements->Count );
Console::WriteLine( "Chain elements synchronized? {0} {1}", ch->ChainElements->IsSynchronized, Environment::NewLine );
System::Collections::IEnumerator^ myEnum = ch->ChainElements->GetEnumerator();
while ( myEnum->MoveNext() )
{
X509ChainElement ^ element = safe_cast<X509ChainElement ^>(myEnum->Current);
Console::WriteLine( "Element issuer name: {0}", element->Certificate->Issuer );
Console::WriteLine( "Element certificate valid until: {0}", element->Certificate->NotAfter );
Console::WriteLine( "Element certificate is valid: {0}", element->Certificate->Verify() );
Console::WriteLine( "Element error status length: {0}", element->ChainElementStatus->Length );
Console::WriteLine( "Element information: {0}", element->Information );
Console::WriteLine( "Number of element extensions: {0}{1}", element->Certificate->Extensions->Count, Environment::NewLine );
if ( ch->ChainStatus->Length > 1 )
{
for ( int index = 0; index < element->ChainElementStatus->Length; index++ )
{
Console::WriteLine( element->ChainElementStatus[ index ].Status );
Console::WriteLine( element->ChainElementStatus[ index ].StatusInformation );
}
}
}
store->Close();
}
using System;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.IO;
class TestX509Chain
{
static void Main(string[] args)
{
//Create new X509 store from local certificate store.
X509Store store = new X509Store("MY", StoreLocation.CurrentUser);
store.Open(OpenFlags.OpenExistingOnly | OpenFlags.ReadWrite);
//Output store information.
Console.WriteLine ("Store Information");
Console.WriteLine ("Number of certificates in the store: {0}", store.Certificates.Count);
Console.WriteLine ("Store location: {0}", store.Location);
Console.WriteLine ("Store name: {0} {1}", store.Name, Environment.NewLine);
//Put certificates from the store into a collection so user can select one.
X509Certificate2Collection fcollection = (X509Certificate2Collection)store.Certificates;
X509Certificate2Collection collection = X509Certificate2UI.SelectFromCollection(fcollection, "Select an X509 Certificate", "Choose a certificate to examine.", X509SelectionFlag.SingleSelection);
X509Certificate2 certificate = collection[0];
X509Certificate2UI.DisplayCertificate(certificate);
//Output chain information of the selected certificate.
X509Chain ch = new X509Chain();
ch.ChainPolicy.RevocationMode = X509RevocationMode.Online;
ch.Build (certificate);
Console.WriteLine ("Chain Information");
Console.WriteLine ("Chain revocation flag: {0}", ch.ChainPolicy.RevocationFlag);
Console.WriteLine ("Chain revocation mode: {0}", ch.ChainPolicy.RevocationMode);
Console.WriteLine ("Chain verification flag: {0}", ch.ChainPolicy.VerificationFlags);
Console.WriteLine ("Chain verification time: {0}", ch.ChainPolicy.VerificationTime);
Console.WriteLine ("Chain status length: {0}", ch.ChainStatus.Length);
Console.WriteLine ("Chain application policy count: {0}", ch.ChainPolicy.ApplicationPolicy.Count);
Console.WriteLine ("Chain certificate policy count: {0} {1}", ch.ChainPolicy.CertificatePolicy.Count, Environment.NewLine);
//Output chain element information.
Console.WriteLine ("Chain Element Information");
Console.WriteLine ("Number of chain elements: {0}", ch.ChainElements.Count);
Console.WriteLine ("Chain elements synchronized? {0} {1}", ch.ChainElements.IsSynchronized, Environment.NewLine);
foreach (X509ChainElement element in ch.ChainElements)
{
Console.WriteLine ("Element issuer name: {0}", element.Certificate.Issuer);
Console.WriteLine ("Element certificate valid until: {0}", element.Certificate.NotAfter);
Console.WriteLine ("Element certificate is valid: {0}", element.Certificate.Verify ());
Console.WriteLine ("Element error status length: {0}", element.ChainElementStatus.Length);
Console.WriteLine ("Element information: {0}", element.Information);
Console.WriteLine ("Number of element extensions: {0}{1}", element.Certificate.Extensions.Count, Environment.NewLine);
if (ch.ChainStatus.Length > 1)
{
for (int index = 0; index < element.ChainElementStatus.Length; index++)
{
Console.WriteLine (element.ChainElementStatus[index].Status);
Console.WriteLine (element.ChainElementStatus[index].StatusInformation);
}
}
}
store.Close();
}
}
Imports System.Security.Cryptography
Imports System.Security.Cryptography.X509Certificates
Imports System.IO
Class TestX509Chain
Shared Sub Main(ByVal args() As String)
'Create new X509 store from local certificate store.
Dim store As New X509Store("MY", StoreLocation.CurrentUser)
store.Open(OpenFlags.OpenExistingOnly Or OpenFlags.ReadWrite)
'Output store information.
Console.WriteLine("Store Information")
Console.WriteLine("Number of certificates in the store: {0}", store.Certificates.Count)
Console.WriteLine("Store location: {0}", store.Location)
Console.WriteLine("Store name: {0} {1}", store.Name, Environment.NewLine)
'Put certificates from the store into a collection so user can select one.
Dim fcollection As X509Certificate2Collection = CType(store.Certificates, X509Certificate2Collection)
Dim collection As X509Certificate2Collection = X509Certificate2UI.SelectFromCollection(fcollection, "Select an X509 Certificate", "Choose a certificate to examine.", X509SelectionFlag.SingleSelection)
Dim certificate As X509Certificate2 = collection(0)
X509Certificate2UI.DisplayCertificate(certificate)
'Output chain information of the selected certificate.
Dim ch As New X509Chain()
ch.ChainPolicy.RevocationMode = X509RevocationMode.Online
ch.Build(certificate)
Console.WriteLine("Chain Information")
Console.WriteLine("Chain revocation flag: {0}", ch.ChainPolicy.RevocationFlag)
Console.WriteLine("Chain revocation mode: {0}", ch.ChainPolicy.RevocationMode)
Console.WriteLine("Chain verification flag: {0}", ch.ChainPolicy.VerificationFlags)
Console.WriteLine("Chain verification time: {0}", ch.ChainPolicy.VerificationTime)
Console.WriteLine("Chain status length: {0}", ch.ChainStatus.Length)
Console.WriteLine("Chain application policy count: {0}", ch.ChainPolicy.ApplicationPolicy.Count)
Console.WriteLine("Chain certificate policy count: {0} {1}", ch.ChainPolicy.CertificatePolicy.Count, Environment.NewLine)
'Output chain element information.
Console.WriteLine("Chain Element Information")
Console.WriteLine("Number of chain elements: {0}", ch.ChainElements.Count)
Console.WriteLine("Chain elements synchronized? {0} {1}", ch.ChainElements.IsSynchronized, Environment.NewLine)
Dim element As X509ChainElement
For Each element In ch.ChainElements
Console.WriteLine("Element issuer name: {0}", element.Certificate.Issuer)
Console.WriteLine("Element certificate valid until: {0}", element.Certificate.NotAfter)
Console.WriteLine("Element certificate is valid: {0}", element.Certificate.Verify())
Console.WriteLine("Element error status length: {0}", element.ChainElementStatus.Length)
Console.WriteLine("Element information: {0}", element.Information)
Console.WriteLine("Number of element extensions: {0}{1}", element.Certificate.Extensions.Count, Environment.NewLine)
If ch.ChainStatus.Length > 1 Then
Dim index As Integer
For index = 0 To element.ChainElementStatus.Length
Console.WriteLine(element.ChainElementStatus(index).Status)
Console.WriteLine(element.ChainElementStatus(index).StatusInformation)
Next index
End If
Next element
store.Close()
End Sub
End Class
注釈
各 X509Certificate2 オブジェクトには、 X509ChainPolicy 検証プロセスで使用するポリシーを指定する プロパティを持つことができます。 オブジェクトのみを X509Certificate2 構築できることに X509ChainPolicy 注意してください。
コンストラクター
X509ChainPolicy() |
X509ChainPolicy クラスの新しいインスタンスを初期化します。 |
プロパティ
ApplicationPolicy |
証明書でサポートする必要があるアプリケーション ポリシーまたは拡張されたキー使用目的 (EKU) を指定するオブジェクト識別子 (OID) のコレクションを取得します。 |
CertificatePolicy |
証明書がサポートする必要がある証明書ポリシーを指定するオブジェクト識別子 (OID) のコレクションを取得します。 |
CustomTrustStore |
既定の証明書信頼を置き換える証明書のコレクションを表します。 |
DisableCertificateDownloads |
チェーン エンジンで機関情報アクセス (AIA) の拡張機能を使用して、不明な発行者の証明書を見つけることができるかどうかを示す値を取得または設定します。 |
ExtraStore |
証明書チェーンの検証時にチェーン エンジンによって検索される証明書の追加のコレクションを表すオブジェクトを取得します。 |
RevocationFlag |
X509 失効フラグの値を取得または設定します。 |
RevocationMode |
X509 証明書失効モードの値を取得または設定します。 |
TrustMode |
証明書チェーンを構築するためのルート信頼を決定するモード。 |
UrlRetrievalTimeout |
オンライン失効検証時、または証明書失効リスト (CRL) のダウンロード時にかかる最長時間を取得または設定します。 Zero の値は、無制限であることを意味します。 |
VerificationFlags |
証明書の検証フラグを取得します。 |
VerificationTime |
チェーンが検証される時間を取得または設定します。 |
VerificationTimeIgnored |
X.509 証明書チェーンを構築するときに、チェーンの検証で使用するか、現在のシステム時刻を使用 VerificationTime するかを示す値を取得または設定します。 |
メソッド
Clone() |
このインスタンスと同じ設定を持つ新しいチェーン ポリシー インスタンスを作成します。 |
Equals(Object) |
指定されたオブジェクトが現在のオブジェクトと等しいかどうかを判断します。 (継承元 Object) |
GetHashCode() |
既定のハッシュ関数として機能します。 (継承元 Object) |
GetType() |
現在のインスタンスの Type を取得します。 (継承元 Object) |
MemberwiseClone() |
現在の Object の簡易コピーを作成します。 (継承元 Object) |
Reset() |
X509ChainPolicy の各メンバーを既定値にリセットします。 |
ToString() |
現在のオブジェクトを表す文字列を返します。 (継承元 Object) |
適用対象
.NET