public unsafe void SetPeerKey(ReadableBuffer buffer)
{
if (buffer.Length != _keyExchangeSize)
{
Alerts.AlertException.ThrowAlert(Alerts.AlertLevel.Fatal, Alerts.AlertDescription.illegal_parameter, $"The peer key is not the length of the keyexchange size {buffer.Length} - {_keyExchangeSize}");
}
GCHandle handle;
void * ptr;
if (buffer.IsSingleSpan)
{
ptr = buffer.First.GetPointer(out handle);
}
else
{
var tmpBuffer = stackalloc byte[buffer.Length];
var span = new Span <byte>(tmpBuffer, buffer.Length);
buffer.CopyTo(span);
ptr = tmpBuffer;
}
_peerKey = EVP_PKEY_new();
ThrowOnError(EVP_PKEY_set_type(_peerKey, _nid));
ThrowOnError(EVP_PKEY_set1_tls_encodedpoint(_peerKey, ptr, (UIntPtr)buffer.Length));
if (!_publicPrivateKey.IsValid())
{
GenerateKeyset();
}
_hasPeerKey = true;
}
private void GenerateECKeySet()
{
if (_eKey.IsValid())
{
return;
}
var param = CreateParams();
var keyGenCtx = default(EVP_PKEY_CTX);
try
{
keyGenCtx = EVP_PKEY_CTX_new(param, IntPtr.Zero);
ThrowOnError(EVP_PKEY_keygen_init(keyGenCtx));
EVP_PKEY keyPair;
ThrowOnError(EVP_PKEY_keygen(keyGenCtx, out keyPair));
_eKey = keyPair;
}
finally
{
keyGenCtx.Free();
param.Free();
}
}