Simply Passphrase Hider / Simply hide passphrases into a characters desert.

keymgr.py

#! /usr/bin/env python
# -*- coding:utf-8 -*-

import sys
import string
import random
import os

def genkey(n):
    return ''.join([random.choice(string.ascii_letters + string.digits) for i in range(n)])

argv = sys.argv
argc = len(argv)

if (argc != 3):
    print 'Usage: %s -a password | -l keyid | -m length' % argv[0]
    print '    -a    Add key to keyfile.'
    print '    -l    Load key of keyid.'
    print '    -m    Make new key randomized.'
    quit()

try:
    f = open(os.environ['HOME'] + '/.keydata')
    line = f.read()
    f.close()
except:
    print ('Error: File `~/.keydata` is not found. Make the file first. (ex: touch ~/.keydata)')
    quit()

if (argv[1] == '-a'):
    print 'key(retype):',
    pw2 = raw_input()

    if (argv[2] != pw2):
        print '[-] Password mismatch.'
        quit()

    hv = genkey(random.randint(3,200))
    fv = genkey(random.randint(20,180))
    print ('[ ] RandomHeaderLen: %d, KeyLen: %d, RandomFooterLen: %d' % (len(hv), len(pw2), len(fv)))

    f = open(os.environ['HOME'] + '/.keydata', 'a')
    f.write(hv + pw2 + fv)
    f.close()
    print ('[+] New password has registered.')
    print ('[+] keyid = %d-%d' % (len(line) + len(hv), len(pw2)))

    quit()

elif (argv[1] == '-l'):
    v = argv[2].split('-')
    print ('[ ] Locate: %s, Length: %s' % (v[0], v[1]))
    print ('[+] ' + line[int(v[0]):int(v[0])+int(v[1])])
    quit()

elif (argv[1] == '-m'):
    print ('[+] ' + genkey(int(argv[2])))
    quit()

else:
    print ('[-] Unknown options.')
    quit()