def generate_addrs(seed, addrnums, source="addrgen"):
from util import make_chksum_8
seed_id = make_chksum_8(seed) # Must do this before seed gets clobbered
if 'a' in opt.gen_what:
if opt.no_keyconv or test_for_keyconv() == False:
msg("Using (slow) internal ECDSA library for address generation")
from mmgen.bitcoin import privnum2addr
keyconv = False
else:
from subprocess import check_output
keyconv = "keyconv"
addrnums = sorted(set(addrnums)) # don't trust the calling function
t_addrs,num,pos,out = len(addrnums),0,0,[]
w = {
'ka': ('key/address pair','s'),
'k': ('key','s'),
'a': ('address','es')
}[opt.gen_what]
from mmgen.addr import AddrInfoEntry,AddrInfo
while pos != t_addrs:
seed = sha512(seed).digest()
num += 1 # round
if num != addrnums[pos]: continue
pos += 1
qmsg_r("\rGenerating %s #%s (%s of %s)" % (w[0],num,pos,t_addrs))
e = AddrInfoEntry()
e.idx = num
# Secret key is double sha256 of seed hash round /num/
sec = sha256(sha256(seed).digest()).hexdigest()
wif = numtowif(int(sec,16))
if 'a' in opt.gen_what:
if keyconv:
e.addr = check_output([keyconv, wif]).split()[1]
else:
e.addr = privnum2addr(int(sec,16))
if 'k' in opt.gen_what: e.wif = wif
if opt.b16: e.sec = sec
out.append(e)
m = w[0] if t_addrs == 1 else w[0]+w[1]
qmsg("\r%s: %s %s generated%s" % (seed_id,t_addrs,m," "*15))
a = AddrInfo(has_keys='k' in opt.gen_what, source=source)
a.initialize(seed_id,out)
return a
