ECDiffieHellman.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 / fx / src / Core / System / Security / Cryptography / ECDiffieHellman.cs / 1305376 / ECDiffieHellman.cs
                        

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

using System; 
using System.Runtime.Serialization; 

namespace System.Security.Cryptography { 
    /// 
    ///     Abstract base class for implementations of elliptic curve Diffie-Hellman to derive from
    /// 
    [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)] 
    public abstract class ECDiffieHellman : AsymmetricAlgorithm {
        public override string KeyExchangeAlgorithm { 
            get { return "ECDiffieHellman"; } 
        }
 
        public override string SignatureAlgorithm {
            get { return null; }
        }
 
        //
        // Creation factory methods 
        // 

        public static new ECDiffieHellman Create() { 
            return Create(typeof(ECDiffieHellmanCng).FullName);
        }

        public static new ECDiffieHellman Create(string algorithm) { 
            if (algorithm == null) {
                throw new ArgumentNullException("algorithm"); 
            } 

            return CryptoConfig.CreateFromName(algorithm) as ECDiffieHellman; 
        }

        //
        // Key derivation 
        //
 
        public abstract ECDiffieHellmanPublicKey PublicKey { get; } 
        public abstract byte[] DeriveKeyMaterial(ECDiffieHellmanPublicKey otherPartyPublicKey);
    } 
}

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

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