/// <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(uint digestMechanism, uint macSizeInBits, uint keySizeInBits, uint ivSizeInBits, uint 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.ToLowLevelParams();
// Abrakadabra :)
_lowLevelStruct.ReturnedKeyMaterial = UnmanagedMemory.Allocate(UnmanagedMemory.SizeOf(typeof(CK_WTLS_KEY_MAT_OUT)));
UnmanagedMemory.Write(_lowLevelStruct.ReturnedKeyMaterial, _returnedKeyMaterial._lowLevelStruct);
}
/// <summary>
/// Initializes a new instance of the CkWtlsMasterKeyDeriveParams class.
/// </summary>
/// <param name='digestMechanism'>Digest mechanism to be used (CKM)</param>
/// <param name='randomInfo'>Client's and server's random data information</param>
/// <param name='dh'>Set to false for CKM_WTLS_MASTER_KEY_DERIVE mechanism and to true for CKM_WTLS_MASTER_KEY_DERIVE_DH_ECC mechanism</param>
public CkWtlsMasterKeyDeriveParams(uint digestMechanism, CkWtlsRandomData randomInfo, bool dh)
{
if (randomInfo == null)
{
throw new ArgumentNullException("randomInfo");
}
// Keep reference to randomInfo so GC will not free it while this object exists
_randomInfo = randomInfo;
_lowLevelStruct.DigestMechanism = digestMechanism;
_lowLevelStruct.RandomInfo = (CK_WTLS_RANDOM_DATA)_randomInfo.ToLowLevelParams();
_lowLevelStruct.Version = (dh) ? IntPtr.Zero : UnmanagedMemory.Allocate(UnmanagedMemory.SizeOf(typeof(CK_VERSION)));
}