RSA Class (System.Security.Cryptography)

RSA Class

.NET Framework Class Library

RSA Class

Represents the base class from which all implementations of the RSA algorithm inherit.

Namespace: System.Security.Cryptography
Assembly: mscorlib (in mscorlib.dll)

Syntax

Visual Basic

<ComVisibleAttribute(True)> _
Public MustInherit Class RSA _
    Inherits AsymmetricAlgorithm

[ComVisibleAttribute(true)]
public abstract class RSA : AsymmetricAlgorithm

Visual C++

[ComVisibleAttribute(true)]
public ref class RSA abstract : public AsymmetricAlgorithm

[<AbstractClassAttribute>]
[<ComVisibleAttribute(true)>]
type RSA =  
    class
        inherit AsymmetricAlgorithm
    end

Remarks

Extending this class proves that you are implementing an RSA key. This is required for any developer providing a new RSA key implementation.

The only purpose of this class is as a hierarchy member for identification of the RSA algorithm.

The RSACryptoServiceProvider supports key lengths from 384 bits to 16384 bits in increments of 8 bits if you have the Microsoft Enhanced Cryptographic Provider installed. It supports key lengths from 384 bits to 512 bits in increments of 8 bits if you have the Microsoft Base Cryptographic Provider installed.

Inheritance Hierarchy

System..::.Object
  System.Security.Cryptography..::.AsymmetricAlgorithm
    System.Security.Cryptography..::.RSA
      System.Security.Cryptography..::.RSACryptoServiceProvider

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role not supported), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Reference

RSA Members

System.Security.Cryptography Namespace

Other Resources

Cryptographic Services