Fixed some lint and change master key prompt

This commit is contained in:
Alexandre Possebom 2014-09-22 21:07:53 -03:00
parent c51f09d864
commit 557a94f128
1 changed files with 42 additions and 39 deletions

View File

@ -32,6 +32,7 @@ import ConfigParser
import os.path import os.path
import argparse import argparse
def enum(**enums): def enum(**enums):
return type('Enum', (), enums) return type('Enum', (), enums)
@ -59,77 +60,77 @@ def readprivatekey():
config.add_section('Profile') config.add_section('Profile')
private_key = privatekeygenerator() private_key = privatekeygenerator()
config.set('Profile', 'private_key', private_key) config.set('Profile', 'private_key', private_key)
with open(config_file, 'w+') as fp: with open(config_file, 'w+') as fileconfig:
config.write(fp) config.write(fileconfig)
else: else:
private_key = config.get('Profile', 'private_key') private_key = config.get('Profile', 'private_key')
return private_key return private_key
def injectcharacter(input, offset, reserved, seed, length, cStart, cNum): def injectcharacter(mhash, offset, reserved, seed, length, cstart, cnum):
pos0 = seed % length pos0 = seed % length
pos = (pos0 + offset) % length pos = (pos0 + offset) % length
for i in range(0, length - reserved): for i in range(0, length - reserved):
i2 = (pos0 + reserved + i) % length tmp = (pos0 + reserved + i) % length
c = ord(input[i2]) char = ord(mhash[tmp])
if c >= ord(cStart) and c < ord(cStart) + cNum: if char >= ord(cstart) and char < ord(cstart) + cnum:
return input return mhash
head = input[:pos] if pos > 0 else "" head = mhash[:pos] if pos > 0 else ""
inject = ((seed + ord(input[pos])) % cNum) + ord(cStart) inject = ((seed + ord(mhash[pos])) % cnum) + ord(cstart)
tail = input[pos+1:] if (pos + 1 < len(input)) else input tail = mhash[pos+1:] if (pos + 1 < len(mhash)) else mhash
return head + chr(inject) + tail return head + chr(inject) + tail
def removespecialcharacters(hash, seed, length): def removespecialcharacters(mhash, seed, length):
inputChars = list(hash) inputchars = list(mhash)
pivot = 0 pivot = 0
for i in range(0, length): for i in range(0, length):
if not inputChars[i].isdigit() and not inputChars[i].isalpha(): if not inputchars[i].isdigit() and not inputchars[i].isalpha():
inputChars[i] = chr(((seed + pivot) % 26 + ord('A'))) inputchars[i] = chr(((seed + pivot) % 26 + ord('A')))
pivot = i + 1 pivot = i + 1
return "".join(inputChars) return "".join(inputchars)
def converttodigits(hash, seed, length): def converttodigits(mhash, seed, length):
inputChars = list(hash) inputchars = list(mhash)
pivot = 0 pivot = 0
for i in range(0, length): for i in range(0, length):
if not inputChars[i].isdigit(): if not inputchars[i].isdigit():
inputChars[i] = chr(((seed + ord(inputChars[pivot])) % 10 + inputchars[i] = chr(((seed + ord(inputchars[pivot])) % 10 +
ord('0'))) ord('0')))
pivot = i + 1 pivot = i + 1
return "".join(inputChars) return "".join(inputchars)
def generatehash(tag, key, length, password_type): def generatehash(tag, key, length, password_type):
digest = hmac.new(key, tag, sha1).digest() digest = hmac.new(key, tag, sha1).digest()
hash = digest.encode('base64')[:-2] mhash = digest.encode('base64')[:-2]
seed = 0 seed = 0
for i in range(0, len(hash)): for i in range(0, len(mhash)):
seed += ord(hash[i]) seed += ord(mhash[i])
if password_type == PasswordType.NUMERIC: if password_type == PASSWORDTYPE.NUMERIC:
hash = converttodigits(hash, seed, length) mhash = converttodigits(mhash, seed, length)
else: else:
hash = injectcharacter(hash, 0, 4, seed, length, '0', 10) mhash = injectcharacter(mhash, 0, 4, seed, length, '0', 10)
if password_type == PasswordType.ALPHANUMERIC_AND_SPECIAL_CHARS: if password_type == PASSWORDTYPE.ALPHANUMERIC_AND_SPECIAL_CHARS:
hash = injectcharacter(hash, 1, 4, seed, length, '!', 15) mhash = injectcharacter(mhash, 1, 4, seed, length, '!', 15)
hash = injectcharacter(hash, 2, 4, seed, length, 'A', 26) mhash = injectcharacter(mhash, 2, 4, seed, length, 'A', 26)
hash = injectcharacter(hash, 3, 4, seed, length, 'a', 26) mhash = injectcharacter(mhash, 3, 4, seed, length, 'a', 26)
if password_type == PasswordType.ALPHANUMERIC: if password_type == PASSWORDTYPE.ALPHANUMERIC:
hash = removespecialcharacters(hash, seed, length) mhash = removespecialcharacters(mhash, seed, length)
return hash[:length] return mhash[:length]
def getpassword(tag, private_key, master_key, length, password_type): def getpassword(tag, private_key, master_key, length, password_type):
hash = generatehash(private_key, tag, 24, 1) mhash = generatehash(private_key, tag, 24, 1)
password = generatehash(hash, master_key, length, password_type) password = generatehash(mhash, master_key, length, password_type)
print "Your password is %s" % password print "Your password is %s" % password
def main(): def main():
global PasswordType global PASSWORDTYPE
PasswordType = enum(ALPHANUMERIC_AND_SPECIAL_CHARS=1, ALPHANUMERIC=2, PASSWORDTYPE = enum(ALPHANUMERIC_AND_SPECIAL_CHARS=1, ALPHANUMERIC=2,
NUMERIC=3) NUMERIC=3)
parser = argparse.ArgumentParser() parser = argparse.ArgumentParser()
parser.add_argument("tag", type=str, parser.add_argument("tag", type=str,
help="generate password for a specified tag") help="generate password for a specified tag")
@ -140,7 +141,9 @@ def main():
args = parser.parse_args() args = parser.parse_args()
private_key = readprivatekey() private_key = readprivatekey()
master_key = getpass.getpass() master_key = getpass.getpass(prompt='Master Key: ')
getpassword(args.tag, private_key, master_key, args.c, args.p) getpassword(args.tag, private_key, master_key, args.c, args.p)
if __name__ == "__main__":
main()
# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4 # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4