01-20-2017, 05:10 AM
I think one of the most important problems with rainbow tables is this:
It's hard to make them useful for multihash cracking. For example:
True, but with hashcat his rig will still take only 1 hour (plus a minimal overhead) to crack 1000000 hashes of that keyspace. RainbowCrack will take (theoretically) 1000000 times that long.
Quote:you have a very small set of hashes to crack (I think? I haven't done much rainbow-table work, but I assume that more hashes makes lookups slower?)
It's hard to make them useful for multihash cracking. For example:
Quote:... then rainbow tables can be faster than hashcat's bruteforce mode (-a 3). My 6x GTX 970 SC rig will take 1 hour to bruteforce an 8-character upper/lower/digits password, whereas a RainbowCrack search might take half of that time.
True, but with hashcat his rig will still take only 1 hour (plus a minimal overhead) to crack 1000000 hashes of that keyspace. RainbowCrack will take (theoretically) 1000000 times that long.