Oid Class
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Represents a cryptographic object identifier. This class cannot be inherited.
public ref class Oid sealedpublic sealed class Oidtype Oid = classPublic NotInheritable Class Oid- Inheritance
-
Oid
Examples
The following code example shows how to use the Oid class.
#using <system.dll>
using namespace System;
using namespace System::Security::Cryptography;
int main()
{
// Assign values to strings.
String^ Value1 = "1.2.840.113549.1.1.1";
String^ Name1 = "3DES";
String^ Value2 = "1.3.6.1.4.1.311.20.2";
String^ InvalidName = "This name is not a valid name";
String^ InvalidValue = "1.1.1.1.1.1.1.1";
// Create new Oid objects using the specified values.
// Note that the corresponding Value or Friendly Name property is automatically added to the object.
Oid ^ o1 = gcnew Oid( Value1 );
Oid ^ o2 = gcnew Oid( Name1 );
// Create a new Oid object using the specified Value and Friendly Name properties.
// Note that the two are not compared to determine if the Value is associated
// with the Friendly Name.
Oid ^ o3 = gcnew Oid( Value2,InvalidName );
//Create a new Oid object using the specified Value. Note that if the value
// is invalid or not known, no value is assigned to the Friendly Name property.
Oid ^ o4 = gcnew Oid( InvalidValue );
//Write out the property information of the Oid objects.
Console::WriteLine( "Oid1: Automatically assigned Friendly Name: {0}, {1}", o1->FriendlyName, o1->Value );
Console::WriteLine( "Oid2: Automatically assigned Value: {0}, {1}", o2->FriendlyName, o2->Value );
Console::WriteLine( "Oid3: Name and Value not compared: {0}, {1}", o3->FriendlyName, o3->Value );
Console::WriteLine( "Oid4: Invalid Value used: {0}, {1} {2}", o4->FriendlyName, o4->Value, Environment::NewLine );
//Create an Oid collection and add several Oid objects.
OidCollection ^ oc = gcnew OidCollection;
oc->Add( o1 );
oc->Add( o2 );
oc->Add( o3 );
Console::WriteLine( "Number of Oids in the collection: {0}", oc->Count );
Console::WriteLine( "Is synchronized: {0} {1}", oc->IsSynchronized, Environment::NewLine );
//Create an enumerator for moving through the collection.
OidEnumerator ^ oe = oc->GetEnumerator();
//You must execute a MoveNext() to get to the first item in the collection.
oe->MoveNext();
// Write out Oids in the collection.
Console::WriteLine( "First Oid in collection: {0},{1}", oe->Current->FriendlyName, oe->Current->Value );
oe->MoveNext();
Console::WriteLine( "Second Oid in collection: {0},{1}", oe->Current->FriendlyName, oe->Current->Value );
//Return index in the collection to the beginning.
oe->Reset();
}
using System;
using System.Security.Cryptography;
public class OidSample
{
public static void Main()
{
// Assign values to strings.
string Value1 = "1.2.840.113549.1.1.1";
string Name1 = "3DES";
string Value2 = "1.3.6.1.4.1.311.20.2";
string InvalidName = "This name is not a valid name";
string InvalidValue = "1.1.1.1.1.1.1.1";
// Create new Oid objects using the specified values.
// Note that the corresponding Value or Friendly Name property is automatically added to the object.
Oid o1 = new Oid(Value1);
Oid o2 = new Oid(Name1);
// Create a new Oid object using the specified Value and Friendly Name properties.
// Note that the two are not compared to determine if the Value is associated
// with the Friendly Name.
Oid o3 = new Oid(Value2, InvalidName);
//Create a new Oid object using the specified Value. Note that if the value
// is invalid or not known, no value is assigned to the Friendly Name property.
Oid o4 = new Oid(InvalidValue);
//Write out the property information of the Oid objects.
Console.WriteLine("Oid1: Automatically assigned Friendly Name: {0}, {1}", o1.FriendlyName, o1.Value);
Console.WriteLine("Oid2: Automatically assigned Value: {0}, {1}", o2.FriendlyName, o2.Value);
Console.WriteLine("Oid3: Name and Value not compared: {0}, {1}", o3.FriendlyName, o3.Value);
Console.WriteLine("Oid4: Invalid Value used: {0}, {1} {2}", o4.FriendlyName, o4.Value, Environment.NewLine);
//Create an Oid collection and add several Oid objects.
OidCollection oc = new OidCollection();
oc.Add(o1);
oc.Add(o2);
oc.Add(o3);
Console.WriteLine("Number of Oids in the collection: {0}", oc.Count);
Console.WriteLine("Is synchronized: {0} {1}", oc.IsSynchronized, Environment.NewLine);
//Create an enumerator for moving through the collection.
OidEnumerator oe = oc.GetEnumerator();
//You must execute a MoveNext() to get to the first item in the collection.
oe.MoveNext();
// Write out Oids in the collection.
Console.WriteLine("First Oid in collection: {0},{1}", oe.Current.FriendlyName,oe.Current.Value);
oe.MoveNext();
Console.WriteLine("Second Oid in collection: {0},{1}", oe.Current.FriendlyName, oe.Current.Value);
//Return index in the collection to the beginning.
oe.Reset();
}
}
Imports System.Security.Cryptography
Public Class OidSample
Shared msg As String
Public Shared Sub Main()
' Assign values to strings.
Dim Value1 As String = "1.2.840.113549.1.1.1"
Dim Name1 As String = "3DES"
Dim Value2 As String = "1.3.6.1.4.1.311.20.2"
Dim InvalidName As String = "This name is not a valid name"
Dim InvalidValue As String = "1.1.1.1.1.1.1.1"
' Create new Oid objects using the specified values.
' Note that the corresponding Value or Friendly Name property is automatically added to the object.
Dim o1 As New Oid(Value1)
Dim o2 As New Oid(Name1)
' Create a new Oid object using the specified Value and Friendly Name properties.
' Note that the two are not compared to determine if the Value is associated
' with the Friendly Name.
Dim o3 As New Oid(Value2, InvalidName)
'Create a new Oid object using the specified Value. Note that if the value
' is invalid or not known, no value is assigned to the Friendly Name property.
Dim o4 As New Oid(InvalidValue)
'Write out the property information of the Oid objects.
msg = "Oid1: Automatically assigned Friendly Name: " & o1.FriendlyName & ", " & o1.Value
MsgBox(msg)
'Console.WriteLine("Oid1: Automatically assigned Friendly Name: {0}, {1}", o1.FriendlyName, o1.Value)
'Console.WriteLine("Oid2: Automatically assigned Value: {0}, {1}", o2.FriendlyName, o2.Value)
msg = "Oid2: Automatically assigned Value: " & o2.FriendlyName & ", " & o2.Value
MsgBox(msg)
'Console.WriteLine("Oid3: Name and Value not compared: {0}, {1}", o3.FriendlyName, o3.Value)
msg = "Oid3: Name and Value not compared: " & o3.FriendlyName & ", " & o3.Value
MsgBox(msg)
' Console.WriteLine("Oid4: Invalid Value used: {0}, {1} {2}", o4.FriendlyName, o4.Value, Environment.NewLine)
msg = "Oid4: Invalid Value used: " & o4.FriendlyName & ", " & o4.Value
MsgBox(msg)
'Create an Oid collection and add several Oid objects.
Dim oc As New OidCollection()
oc.Add(o1)
oc.Add(o2)
oc.Add(o3)
' Console.WriteLine("Number of Oids in the collection: {0}", oc.Count)
' Console.WriteLine("Is synchronized: {0} {1}", oc.IsSynchronized, Environment.NewLine)
msg = "Number of Oids in the collection: " & oc.Count
MsgBox(msg)
msg = "Is synchronized: " & oc.IsSynchronized
MsgBox(msg)
'Create an enumerator for moving through the collection.
Dim oe As OidEnumerator = oc.GetEnumerator()
'You must execute a MoveNext() to get to the first item in the collection.
oe.MoveNext()
' Write out Oids in the collection.
'Console.WriteLine("First Oid in collection: {0},{1}", oe.Current.FriendlyName, oe.Current.Value)
msg = "First Oid in collection: " & oe.Current.FriendlyName & ", " & oe.Current.Value
MsgBox(msg)
oe.MoveNext()
' Console.WriteLine("Second Oid in collection: {0},{1}", oe.Current.FriendlyName, oe.Current.Value)
msg = "Second Oid in collection: " & oe.Current.FriendlyName & ", " & oe.Current.Value
MsgBox(msg)
'Return index in the collection to the beginning.
oe.Reset()
End Sub
End Class
Remarks
Cryptographic object identifiers consist of a value/name pair. If one property in a pair is set to a known value, the other property is updated automatically to a corresponding value. For example, if the Value property is set to "1.3.6.1.5.5.7.3.4", the FriendlyName property, which is localized, is set automatically to "Secure Email".
Constructors
| Oid() |
Initializes a new instance of the Oid class. |
| Oid(Oid) |
Initializes a new instance of the Oid class using the specified Oid object. |
| Oid(String) |
Initializes a new instance of the Oid class using a string value of an Oid object. |
| Oid(String, String) |
Initializes a new instance of the Oid class using the specified value and friendly name. |
Properties
| FriendlyName |
Gets or sets the friendly name of the identifier. |
| Value |
Gets or sets the dotted number of the identifier. |
Methods
| Equals(Object) |
Determines whether the specified object is equal to the current object. (Inherited from Object) |
| FromFriendlyName(String, OidGroup) |
Creates an Oid object from an OID friendly name by searching the specified group. |
| FromOidValue(String, OidGroup) |
Creates an Oid object by using the specified OID value and group. |
| GetHashCode() |
Serves as the default hash function. (Inherited from Object) |
| GetType() |
Gets the Type of the current instance. (Inherited from Object) |
| MemberwiseClone() |
Creates a shallow copy of the current Object. (Inherited from Object) |
| ToString() |
Returns a string that represents the current object. (Inherited from Object) |
Applies to
Collaborate with us on GitHub
The source for this content can be found on GitHub, where you can also create and review issues and pull requests. For more information, see our contributor guide.
