>Did he really use uppercase letters or even special chars? (A 7-bit exhaustive search would still take over 2 years on a modern GPU.)
>took 4+ days on an AMD Radeon Vega64
I don't understand. The author first claims that it would take 2 years on a modern GPU to brute force a 7 bit password with special characters but then he is helped by Nigel Williams that cracked it on 4 days on an AMD Radeon Vega64
Did Nigel Williams used a better technique?
Is AMD Radeon Vega64 much faster than a "modern GPU"?
Did the author overstimated the difficulty?
>took 4+ days on an AMD Radeon Vega64
I don't understand. The author first claims that it would take 2 years on a modern GPU to brute force a 7 bit password with special characters but then he is helped by Nigel Williams that cracked it on 4 days on an AMD Radeon Vega64
Did Nigel Williams used a better technique? Is AMD Radeon Vega64 much faster than a "modern GPU"? Did the author overstimated the difficulty?