yescrypt drawbacks Just one major drawback: complexity! scrypt was already pretty complicated, and the full yescrypt is more so The full yescrypt can compute classic scrypt hashes and native yescrypt hashes The complexity is justified by yescrypt's flexibility and its arsenal of defenses: it's one password hashing scheme for many possible use cases that deals with many kinds of attacks The alternative would have been defining multiple simpler schemes, but their total complexity would probably be even greater Cut-down yet compatible implementation with partial functionality is planned