ECDsa.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Core / System / Security / Cryptography / ECDsa.cs / 1305376 / ECDsa.cs
                        

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

using System; 
 
namespace System.Security.Cryptography {
    ///  
    ///     Base class for implementations of elliptic curve DSA
    /// 
    [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)]
    public abstract class ECDsa : AsymmetricAlgorithm { 
        public override string KeyExchangeAlgorithm {
            get { return null; } 
        } 

        public override string SignatureAlgorithm { 
            get { return "ECDsa"; }
        }

        // 
        // Creation factory methods
        // 
 
        public static new ECDsa Create() {
            return Create(typeof(ECDsaCng).FullName); 
        }

        public static new ECDsa Create(string algorithm) {
            if (algorithm == null) { 
                throw new ArgumentNullException("algorithm");
            } 
 
            return CryptoConfig.CreateFromName(algorithm) as ECDsa;
        } 

        //
        // Signature operations
        // 

        public abstract byte[] SignHash(byte[] hash); 
        public abstract bool VerifyHash(byte[] hash, byte[] signature); 
    }
} 

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

using System; 
 
namespace System.Security.Cryptography {
    ///  
    ///     Base class for implementations of elliptic curve DSA
    /// 
    [System.Security.Permissions.HostProtection(MayLeakOnAbort = true)]
    public abstract class ECDsa : AsymmetricAlgorithm { 
        public override string KeyExchangeAlgorithm {
            get { return null; } 
        } 

        public override string SignatureAlgorithm { 
            get { return "ECDsa"; }
        }

        // 
        // Creation factory methods
        // 
 
        public static new ECDsa Create() {
            return Create(typeof(ECDsaCng).FullName); 
        }

        public static new ECDsa Create(string algorithm) {
            if (algorithm == null) { 
                throw new ArgumentNullException("algorithm");
            } 
 
            return CryptoConfig.CreateFromName(algorithm) as ECDsa;
        } 

        //
        // Signature operations
        // 

        public abstract byte[] SignHash(byte[] hash); 
        public abstract bool VerifyHash(byte[] hash, byte[] signature); 
    }
} 

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

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