InfoCardRSAPKCS1SignatureDeformatter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / infocard / Client / System / IdentityModel / Selectors / InfoCardRSAPKCS1SignatureDeformatter.cs / 1305376 / InfoCardRSAPKCS1SignatureDeformatter.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.IdentityModel.Selectors 
{
    using System; 
    using System.Security.Cryptography; 

    internal class InfoCardRSAPKCS1SignatureDeformatter : 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 InfoCardRSAPKCS1SignatureDeformatter() : base() {} 
        public InfoCardRSAPKCS1SignatureDeformatter( 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 InfoCardRSACryptoProvider ) 
            {
                return ((InfoCardRSACryptoProvider) m_rsaKey).VerifyHash(rgbHash, m_strOID, rgbSignature); 
            }
            else
            {
                return base.VerifySignature( rgbHash, rgbSignature ); 
            }
        } 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK