SelfIssuedAuthRSAPKCS1SignatureDeformatter.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 / SelfIssuedAuthRSAPKCS1SignatureDeformatter.cs / 1 / SelfIssuedAuthRSAPKCS1SignatureDeformatter.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 implements the mechanism to call SelfIssuedAuthRSACryptoProvider's VerifyHash 
    // 
    internal class SelfIssuedAuthRSAPKCS1SignatureDeformatter : RSAPKCS1SignatureDeformatter
    { 
        private RSA m_rsaKey; // RSA Key value to do decrypt operation
        private string m_strOID; // OID value for the HASH algorithm

        // 
        // public constructors
        // 
 
        public SelfIssuedAuthRSAPKCS1SignatureDeformatter() : base() { }
        public SelfIssuedAuthRSAPKCS1SignatureDeformatter( AsymmetricAlgorithm key ) 
            : base( key )
        {
            m_rsaKey = ( RSA )key;
        } 

        // 
        // public methods 
        //
 
        public override void SetKey( AsymmetricAlgorithm key )
        {
            base.SetKey( key );
            m_rsaKey = ( RSA )key; 
        }
 
        public override void SetHashAlgorithm( string strName ) 
        {
            base.SetHashAlgorithm( strName ); 
            m_strOID = CryptoConfig.MapNameToOID( strName );
        }

        public override bool VerifySignature( byte[ ] rgbHash, byte[ ] rgbSignature ) 
        {
            if ( !( m_strOID == null || m_rsaKey == null || rgbHash == null || rgbSignature == null ) 
                && m_rsaKey is SelfIssuedAuthRSACryptoProvider ) 
            {
                return ( ( SelfIssuedAuthRSACryptoProvider )m_rsaKey ).VerifyHash( rgbHash, m_strOID, rgbSignature ); 
            }
            else
            {
                return base.VerifySignature( rgbHash, rgbSignature ); 
            }
        } 
    } 

} 

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

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