Score difference in zxcvbn4j and zxcvbn-ts

[parashartarun]

We already have zxcvbn-ts on our UX layer, now we are implementing it in backend and tried to use zxcvbn4j /nbvcxz java libraries . Now problem is we are getting different score from UI and backend. Please help in understanding:

• Is there any other java equivalent of zxcvbn-ts
• How can we bring parity.
• Any other suggestions

CC : @vvatanabe @HaasJona

[HaasJona]

zxcvbn-ts seems to be a loose reimplementation of the original zxcvbn with some customizations. And nbvcxz is the same, if not worse. I don't know how accurate zxcvbn4j copies the original library, but it's probably the most precise reimplementation of these.

In any case, achieving identical rating between these doesn't seem feasible to me, or it would be a lot of work at least. I'm sure you can do it, but it would probably be a better idea to do something else, e.g. compile zxcvbn4j to javascript (maybe using the Kotlin compiler) or somehow call typescript code from the java backend (multiple ways to do that).