> PBKDF2 iteration count of 86,000 and a password of length 40 would cost $200K to crack Bear in mind that's a 40 character english text password which they es

> PBKDF2 iteration count of 86,000 and a password of length 40 would cost $200K to crack Bear in mind that's a 40 character english text password which they estimated at 56bits of entropy. 40 completely random characters is ~1x10^79 (95^40 - assuming a character space of 95), i.e. 100% completely infeasible to crack forever, even if you could do a hundred trillion guesses every microsecond 100bit entropy is probably fine to avoid brute force attacks for the foreseeable future, which is around 16 completely random ascii characters (95 character space)