SelfIssuedAuthRSACryptoProvider.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / infocard / Service / managed / Microsoft / InfoCards / SelfIssuedAuthRSACryptoProvider.cs / 1 / SelfIssuedAuthRSACryptoProvider.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
//
namespace Microsoft.InfoCards 
{
    using System; 
    using System.IdentityModel.Selectors; 
    using System.IdentityModel.Tokens;
    using System.ServiceModel; 
    using System.ServiceModel.Security;
    using System.ServiceModel.Security.Tokens;
    using System.Runtime.InteropServices;
    using System.Security.Cryptography; 
    using System.IdentityModel;
    using System.Security.Cryptography.Xml; 
 
    using IDT = Microsoft.InfoCards.Diagnostics.InfoCardTrace;
    using System.Collections.ObjectModel; 
    using System.Collections.Generic;

    //
    // Summary: 
    //  This class provides indirect access an RSACryptoServiceProvider - this allows us to
    //  protect the private key better 
    // 
    internal class SelfIssuedAuthRSACryptoProvider : RSA
    { 
        RSACryptoServiceProvider m_rsa;

        //
        // Summary: 
        //  Given a pointer to a CryptoHandle create a new instance of this class.
        // 
        public SelfIssuedAuthRSACryptoProvider( RSACryptoServiceProvider rsa ) 
            : base()
        { 
            m_rsa = rsa;
        }

        public override String SignatureAlgorithm 
        {
            get { return m_rsa.SignatureAlgorithm; } 
        } 

        public override String KeyExchangeAlgorithm 
        {
            get { return m_rsa.KeyExchangeAlgorithm; }
        }
 
        public bool IsPublicOnly()
        { 
            return m_rsa.PublicOnly; 
        }
 
        public override byte[ ] EncryptValue( byte[ ] rgb )
        {
            throw IDT.ThrowHelperError( new NotSupportedException() );
        } 

        public override byte[ ] DecryptValue( byte[ ] rgb ) 
        { 
            throw IDT.ThrowHelperError( new NotSupportedException() );
        } 

        public byte[ ] Decrypt( byte[ ] inData, bool fAOEP )
        {
            throw IDT.ThrowHelperError( new NotSupportedException() ); 
        }
 
        public byte[ ] Encrypt( byte[ ] inData, bool fAOEP ) 
        {
            throw IDT.ThrowHelperError( new NotSupportedException() ); 
        }

        public byte[ ] SignHash( byte[ ] hash, string hashAlgOid )
        { 
            IDT.ThrowInvalidArgumentConditional( null == hash || 0 == hash.Length, "hash" );
            IDT.ThrowInvalidArgumentConditional( String.IsNullOrEmpty( hashAlgOid ), "hashAlgOid" ); 
 
            return m_rsa.SignHash( hash, hashAlgOid );
        } 

        public bool VerifyHash( byte[ ] hash, string hashAlgOid, byte[ ] sig )
        {
            IDT.ThrowInvalidArgumentConditional( null == hash || 0 == hash.Length, "hash" ); 
            IDT.ThrowInvalidArgumentConditional( String.IsNullOrEmpty( hashAlgOid ), "hashAlgOid" );
            IDT.ThrowInvalidArgumentConditional( null == sig || 0 == sig.Length, "sig" ); 
 
            return m_rsa.VerifyHash( hash, hashAlgOid, sig );
        } 

        public override RSAParameters ExportParameters( bool includePrivateParameters )
        {
            throw IDT.ThrowHelperError( new NotSupportedException() ); 
        }
 
        public override string ToXmlString( bool includePrivateParameters ) 
        {
            throw IDT.ThrowHelperError( new NotSupportedException() ); 
        }

        public override void FromXmlString( string xmlString )
        { 
            throw IDT.ThrowHelperError( new NotSupportedException() );
        } 
 
        public override void ImportParameters( System.Security.Cryptography.RSAParameters parameters )
        { 
            throw IDT.ThrowHelperError( new NotSupportedException() );
        }

        protected override void Dispose( bool disposing ) 
        {
            if( null != m_rsa ) 
            { 
                ( ( IDisposable )m_rsa ).Dispose();
            } 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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