public bool ValidateSeal(BlockHeader header, bool force)
{
// genesis block is configured and assumed valid
if (header.IsGenesis)
{
return(true);
}
if (!force && header.Number % _sealValidationInterval != 0)
{
return(true);
}
// the cache will return false both if the seal was invalid and if it has never been checked before
if (_sealCache.Get(header.Hash))
{
return(true);
}
bool result = _ethash.Validate(header);
_sealCache.Set(header.Hash, result);
return(result);
}
public bool ValidateSeal(BlockHeader header)
{
if (header.Number % 64 != 0 || header.Number == 0)
{
return(true);
}
return(_ethash.Validate(header));
}
public bool ValidateSeal(BlockHeader header)
{
// TODO: all until we properly optimize ethash, still with sensible security measures (although there are many attack vectors for this particular node during sync)
if (header.Number < 750000)
{
return(true);
}
if (header.Number < 6500000 && header.Number % 30000 != 0) // TODO: this numbers are here to secure mainnet only (current block and epoch length)
{
return(true);
}
return(_ethash.Validate(header));
}
public bool ValidateSeal(BlockHeader header)
{
if (header.Number % 1024 != 0 || header.Number == 0)
{
return(true);
}
lock (_sealCache)
{
if (_sealCache.Get(header.Hash))
{
return(true);
}
}
bool result = _ethash.Validate(header);
lock (_sealCache)
{
_sealCache.Set(header.Hash, result);
}
return(result);
}
public bool Validate(BlockHeader header)
{
return(_ethash.Validate(header));
}