Resulting key handles and initialization vectors after performing a DeriveKey method with the CKM_WTLS_SERVER_KEY_AND_MAC_DERIVE or with the CKM_WTLS_CLIENT_KEY_AND_MAC_DERIVE mechanism
Наследование: IDisposable
Пример #1
0
        /// <summary>
        /// Initializes a new instance of the CkWtlsKeyMatParams class.
        /// </summary>
        /// <param name='digestMechanism'>The digest mechanism to be used (CKM)</param>
        /// <param name='macSizeInBits'>The length (in bits) of the MACing key agreed upon during the protocol handshake phase</param>
        /// <param name='keySizeInBits'>The length (in bits) of the secret key agreed upon during the handshake phase</param>
        /// <param name='ivSizeInBits'>The length (in bits) of the IV agreed upon during the handshake phase or if no IV is required, the length should be set to 0</param>
        /// <param name='sequenceNumber'>The current sequence number used for records sent by the client and server respectively</param>
        /// <param name='isExport'>Flag indicating whether the keys have to be derived for an export version of the protocol</param>
        /// <param name='randomInfo'>Client's and server's random data information</param>
        public CkWtlsKeyMatParams(NativeULong digestMechanism, NativeULong macSizeInBits, NativeULong keySizeInBits, NativeULong ivSizeInBits, NativeULong sequenceNumber, bool isExport, ICkWtlsRandomData randomInfo)
        {
            if (randomInfo == null)
            {
                throw new ArgumentNullException("randomInfo");
            }

            // Keep reference to randomInfo so GC will not free it while this object exists
            _randomInfo = randomInfo;

            if (ivSizeInBits % 8 != 0)
            {
                throw new ArgumentException("Value has to be a multiple of 8", "ivSizeInBits");
            }

            // GC will not free ReturnedKeyMaterial while this object exists
            _returnedKeyMaterial = new CkWtlsKeyMatOut(ivSizeInBits / 8);

            _lowLevelStruct.DigestMechanism = digestMechanism;
            _lowLevelStruct.MacSizeInBits   = macSizeInBits;
            _lowLevelStruct.KeySizeInBits   = keySizeInBits;
            _lowLevelStruct.IVSizeInBits    = ivSizeInBits;
            _lowLevelStruct.SequenceNumber  = sequenceNumber;
            _lowLevelStruct.IsExport        = isExport;
            _lowLevelStruct.RandomInfo      = (CK_WTLS_RANDOM_DATA)_randomInfo.ToMarshalableStructure();

            // Abrakadabra :)
            _lowLevelStruct.ReturnedKeyMaterial = UnmanagedMemory.Allocate(UnmanagedMemory.SizeOf(typeof(CK_WTLS_KEY_MAT_OUT)));
            UnmanagedMemory.Write(_lowLevelStruct.ReturnedKeyMaterial, _returnedKeyMaterial._lowLevelStruct);
        }
Пример #2
0
        /// <summary>
        /// Disposes object
        /// </summary>
        /// <param name="disposing">Flag indicating whether managed resources should be disposed</param>
        protected virtual void Dispose(bool disposing)
        {
            if (!this._disposed)
            {
                if (disposing)
                {
                    // Dispose managed objects
                    if (_returnedKeyMaterialLeftInstance == false)
                    {
                        if (_returnedKeyMaterial != null)
                        {
                            _returnedKeyMaterial.Dispose();
                            _returnedKeyMaterial = null;
                        }
                    }
                }

                // Dispose unmanaged objects
                UnmanagedMemory.Free(ref _lowLevelStruct.ReturnedKeyMaterial);

                _disposed = true;
            }
        }
        /// <summary>
        /// Initializes a new instance of the CkWtlsKeyMatParams class.
        /// </summary>
        /// <param name='digestMechanism'>The digest mechanism to be used (CKM)</param>
        /// <param name='macSizeInBits'>The length (in bits) of the MACing key agreed upon during the protocol handshake phase</param>
        /// <param name='keySizeInBits'>The length (in bits) of the secret key agreed upon during the handshake phase</param>
        /// <param name='ivSizeInBits'>The length (in bits) of the IV agreed upon during the handshake phase or if no IV is required, the length should be set to 0</param>
        /// <param name='sequenceNumber'>The current sequence number used for records sent by the client and server respectively</param>
        /// <param name='isExport'>Flag indicating whether the keys have to be derived for an export version of the protocol</param>
        /// <param name='randomInfo'>Client's and server's random data information</param>
        public CkWtlsKeyMatParams(ulong digestMechanism, ulong macSizeInBits, ulong keySizeInBits, ulong ivSizeInBits, ulong sequenceNumber, bool isExport, CkWtlsRandomData randomInfo)
        {
            if (randomInfo == null)
                throw new ArgumentNullException("randomInfo");
            
            // Keep reference to randomInfo so GC will not free it while this object exists
            _randomInfo = randomInfo;
            
            if (ivSizeInBits % 8 != 0)
                throw new ArgumentException("Value has to be a multiple of 8", "ivSizeInBits");
            
            // GC will not free ReturnedKeyMaterial while this object exists
            _returnedKeyMaterial = new CkWtlsKeyMatOut(ivSizeInBits / 8);

            _lowLevelStruct.DigestMechanism = digestMechanism;
            _lowLevelStruct.MacSizeInBits = macSizeInBits;
            _lowLevelStruct.KeySizeInBits = keySizeInBits;
            _lowLevelStruct.IVSizeInBits = ivSizeInBits;
            _lowLevelStruct.SequenceNumber = sequenceNumber;
            _lowLevelStruct.IsExport = isExport;
            _lowLevelStruct.RandomInfo = (CK_WTLS_RANDOM_DATA)_randomInfo.ToMarshalableStructure();
            
            // Abrakadabra :)
            _lowLevelStruct.ReturnedKeyMaterial = UnmanagedMemory.Allocate(UnmanagedMemory.SizeOf(typeof(CK_WTLS_KEY_MAT_OUT)));
            UnmanagedMemory.Write(_lowLevelStruct.ReturnedKeyMaterial, _returnedKeyMaterial._lowLevelStruct);
        }
 /// <summary>
 /// Disposes object
 /// </summary>
 /// <param name="disposing">Flag indicating whether managed resources should be disposed</param>
 protected virtual void Dispose(bool disposing)
 {
     if (!this._disposed)
     {
         if (disposing)
         {
             // Dispose managed objects
             if (_returnedKeyMaterialLeftInstance == false)
             {
                 if (_returnedKeyMaterial != null)
                 {
                     _returnedKeyMaterial.Dispose();
                     _returnedKeyMaterial = null;
                 }
             }
         }
         
         // Dispose unmanaged objects
         UnmanagedMemory.Free(ref _lowLevelStruct.ReturnedKeyMaterial);
         
         _disposed = true;
     }
 }