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PublicKey::Key Property
.NET Framework (current version)
Gets an RSACryptoServiceProvider or DSACryptoServiceProvider object representing the public key.
Assembly: System (in System.dll)
Property Value
Type: System.Security.Cryptography::AsymmetricAlgorithm^An AsymmetricAlgorithm object representing the public key.
| Exception | Condition |
|---|---|
| NotSupportedException | The key algorithm is not supported. |
The following code example opens the current user certificate store, selects only active certificates, and then allows the user to select one or more certificates. The example then writes certificate information to the console.
#using <System.dll> #using <System.Security.dll> using namespace System; using namespace System::Security::Cryptography; using namespace System::Security::Permissions; using namespace System::IO; using namespace System::Security::Cryptography::X509Certificates; int main() { try { X509Store ^ store = gcnew X509Store( "MY",StoreLocation::CurrentUser ); store->Open( static_cast<OpenFlags>(OpenFlags::ReadOnly | OpenFlags::OpenExistingOnly) ); X509Certificate2Collection ^ collection = dynamic_cast<X509Certificate2Collection^>(store->Certificates); X509Certificate2Collection ^ fcollection = dynamic_cast<X509Certificate2Collection^>(collection->Find( X509FindType::FindByTimeValid, DateTime::Now, false )); X509Certificate2Collection ^ scollection = X509Certificate2UI::SelectFromCollection(fcollection, "Test Certificate Select","Select a certificate from the following list to get information on that certificate",X509SelectionFlag::MultiSelection); Console::WriteLine( "Number of certificates: {0}{1}", scollection->Count, Environment::NewLine ); System::Collections::IEnumerator^ myEnum = scollection->GetEnumerator(); while ( myEnum->MoveNext() ) { X509Certificate2 ^ x509 = safe_cast<X509Certificate2 ^>(myEnum->Current); array<Byte>^rawdata = x509->RawData; Console::WriteLine( "Content Type: {0}{1}", X509Certificate2::GetCertContentType( rawdata ), Environment::NewLine ); Console::WriteLine( "Friendly Name: {0}{1}", x509->FriendlyName, Environment::NewLine ); Console::WriteLine( "Certificate Verified?: {0}{1}", x509->Verify(), Environment::NewLine ); Console::WriteLine( "Simple Name: {0}{1}", x509->GetNameInfo( X509NameType::SimpleName, true ), Environment::NewLine ); Console::WriteLine( "Signature Algorithm: {0}{1}", x509->SignatureAlgorithm->FriendlyName, Environment::NewLine ); Console::WriteLine( "Private Key: {0}{1}", x509->PrivateKey->ToXmlString( false ), Environment::NewLine ); Console::WriteLine( "Public Key: {0}{1}", x509->PublicKey->Key->ToXmlString( false ), Environment::NewLine ); Console::WriteLine( "Certificate Archived?: {0}{1}", x509->Archived, Environment::NewLine ); Console::WriteLine( "Length of Raw Data: {0}{1}", x509->RawData->Length, Environment::NewLine ); x509->Reset(); } store->Close(); } catch ( CryptographicException^ ) { Console::WriteLine( "Information could not be written out for this certificate." ); } }
.NET Framework
Available since 2.0
Available since 2.0
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