securePasswordKdfAlgoUnknown#4a8537 = SecurePasswordKdfAlgo;
securePasswordKdfAlgoPBKDF2HMACSHA512iter100000#bbf2dda0 salt:bytes = SecurePasswordKdfAlgo;
securePasswordKdfAlgoSHA512#86471d92 salt:bytes = SecurePasswordKdfAlgo;
No method returns this type directly.