Re: How difficult is it to generate a half same bitcoin address?

Quote from: novacn on October 23, 2014, 02:32:09 PM

Quote from: findftp on October 23, 2014, 02:23:44 PM

FYI, the tool is called vanitygen.

Code:

findftp@mint16 ~/Downloads/vanitygen-master $ ./vanitygen 1abcdefg
Difficulty: 51529903411245
[195.63 Kkey/s][total 16791552][Prob 0.0%][50% in 5.8y]

Code:

findftp@mint16 ~/Downloads/vanitygen-master $ ./vanitygen 1abcdef
Difficulty: 888446610538
[221.12 Kkey/s][total 1468160][Prob 0.0%][50% in 32.2d]

So just a "simple" prefix takes a long time on a intel xeon w3505

edit: must say I run this linux on software vmware.

Thanks, findftp!
I'll play around with that vanitygen. Seems a great tool, cheers! Cheesy

FYI, if I do the same abcdefg case insensitive, it goes much faster because then 1Abcdefg and 1ABcdefg and 1aBcdefg ... etc is also valid.
I don't really know about the math behind it. It'll probably be a smaller base number to calculate with.

Code:

findftp@mint16 ~/Downloads/vanitygen-master $ ./vanitygen -i 1abcdefg
Difficulty: 13419245680
[240.02 Kkey/s][total 1666560][Prob 0.0%][50% in 10.8h]