def get_seed_from_seed_data(words):
if not _check_mmseed_format(words):
msg("Invalid %s data" % g.seed_ext)
return False
stored_chk = words[0]
seed_b58 = "".join(words[1:])
chk = make_chksum_6(seed_b58)
vmsg_r("Validating %s checksum..." % g.seed_ext)
if compare_chksums(chk, "seed", stored_chk, "input"):
seed = b58decode_pad(seed_b58)
if seed == False:
msg("Invalid b58 number: %s" % val)
return False
msg("Valid seed data for Seed ID %s" % make_chksum_8(seed))
return seed
else:
msg("Invalid checksum for {pnm} seed".format(pnm=pnm))
return False
def _deformat(self):
desc = self.desc
ld = self.fmt_data.split()
if not (7 <= len(ld) <= 12): # 6 <= padded b58 data (ld[1:]) <= 11
msg("Invalid data length (%s) in %s" % (len(ld),desc))
return False
a,b = ld[0],"".join(ld[1:])
if not is_chksum_6(a):
msg("'%s': invalid checksum format in %s" % (a, desc))
return False
if not is_b58string(b):
msg("'%s': not a base 58 string, in %s" % (b, desc))
return False
vmsg_r("Validating %s checksum..." % desc)
if not compare_chksums(
a,"checksum",make_chksum_6(b),"base 58 data"):
return False
ret = b58decode_pad(b)
if ret == False:
msg("Invalid base-58 encoded seed: %s" % val)
return False
self.seed = Seed(ret)
self.ssdata.chksum = a
self.ssdata.b58seed = b
check_usr_seed_len(self.seed.length)
return True
def _deformat(self):
def check_master_chksum(lines,desc):
if len(lines) != 6:
msg("Invalid number of lines (%s) in %s data" %
(len(lines),desc))
return False
if not is_chksum_6(lines[0]):
msg("Incorrect master checksum (%s) in %s data" %
(lines[0],desc))
return False
chk = make_chksum_6(" ".join(lines[1:]))
if not compare_chksums(lines[0],"master",chk,"computed",
hdr="For wallet master checksum"):
return False
return True
lines = self.fmt_data.splitlines()
if not check_master_chksum(lines,self.desc): return False
d = self.ssdata
d.label = lines[1]
d1,d2,d3,d4,d5 = lines[2].split()
d.seed_id = d1.upper()
d.key_id = d2.upper()
check_usr_seed_len(int(d3))
d.pw_status,d.timestamp = d4,d5
hpdata = lines[3].split()
d.hash_preset = hp = hpdata[0][:-1] # a string!
qmsg("Hash preset of wallet: '%s'" % hp)
if 'hash_preset' in opt.set_by_user:
uhp = opt.hash_preset
if uhp != hp:
qmsg("Warning: ignoring user-requested hash preset '%s'" % uhp)
hash_params = [int(i) for i in hpdata[1:]]
if hash_params != get_hash_params(d.hash_preset):
msg("Hash parameters '%s' don't match hash preset '%s'" %
(" ".join(hash_params), d.hash_preset))
return False
lmin,lmax = b58_lens[0],b58_lens[-1] # 22,33,44
for i,key in (4,"salt"),(5,"enc_seed"):
l = lines[i].split(" ")
chk = l.pop(0)
b58_val = "".join(l)
if len(b58_val) < lmin or len(b58_val) > lmax:
msg("Invalid format for %s in %s: %s" % (key,self.desc,l))
return False
if not compare_chksums(chk,key,
make_chksum_6(b58_val),"computed checksum"):
return False
val = b58decode_pad(b58_val)
if val == False:
msg("Invalid base 58 number: %s" % b58_val)
return False
setattr(d,key,val)
return True
