A fellow cryptographer in the security board on stack exchange has shared their opinion on this: https://security.stackexchange.com/questions/3959/recommended-o

A fellow cryptographer in the security board on stack exchange has shared their opinion on this: https://security.stackexchange.com/questions/3959/recommended-of-iterations-when-using-pbkdf2-sha256/3963#3963 https://security.stackexchange.com/questions/3959/recommende... TLDR: No. In fact, theoretically stretching the password is more effective than increasing iterations. However, I don't see him citing the fact some password hashing functions have limited input size, which means at some point having a larger password doesn't really change anything.