SecurityKeyIdentifierClause.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 / IdentityModel / System / IdentityModel / Tokens / SecurityKeyIdentifierClause.cs / 1305376 / SecurityKeyIdentifierClause.cs
                        

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

namespace System.IdentityModel.Tokens 
{
    // All subclasses are required to be thread-safe and immutable 
 
    // Self-resolving clauses such as RSA and X509 raw data should
    // override CanCreateKey and return true, and implement 
    // CreateKey()

    public abstract class SecurityKeyIdentifierClause
    { 
        readonly string clauseType;
        byte[] derivationNonce; 
        int derivationLength; 

        protected SecurityKeyIdentifierClause(string clauseType) 
            : this(clauseType, null, 0)
        {
        }
 
        protected SecurityKeyIdentifierClause(string clauseType, byte[] nonce, int length)
        { 
            this.clauseType = clauseType; 
            this.derivationNonce = nonce;
            this.derivationLength = length; 
        }

        public virtual bool CanCreateKey
        { 
            get { return false; }
        } 
 
        public string ClauseType
        { 
            get { return this.clauseType; }
        }

        public virtual SecurityKey CreateKey() 
        {
            throw  DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.GetString(SR.KeyIdentifierClauseDoesNotSupportKeyCreation))); 
        } 

        public virtual bool Matches(SecurityKeyIdentifierClause keyIdentifierClause) 
        {
            return ReferenceEquals(this, keyIdentifierClause);
        }
 
        public byte[] GetDerivationNonce()
        { 
            return (this.derivationNonce != null) ? (byte[])this.derivationNonce.Clone() : null; 
        }
 
        public int DerivationLength
        {
            get { return this.derivationLength; }
        } 
    }
} 

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

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