size_t dh_key::compute_key(void* out, size_t out_len, bn::bignum pub_key) const
{
assert(out_len >= size());
if (out_len < size())
{
throw std::invalid_argument("out_len");
}
int result = DH_compute_key(static_cast<unsigned char*>(out), pub_key.raw(), ptr().get());
throw_error_if_not(result >= 0);
return result;
}
inline buffer dh_key::compute_key(bn::bignum pub_key) const
{
buffer result(size());
result.data().resize(compute_key(buffer_cast<uint8_t*>(result), buffer_size(result), pub_key.raw()));
return result;
}
