passmemo

Password recollection trainer
git clone git://git.defalsify.org/passmemo.git
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pass.py (1094B)

      1 #!/usr/bin/python3
      2 
      3 import scrypt
      4 import argparse
      5 import getpass
      6 
      7 scrypt_salt = b"passwordpractice"
      8 scrypt_n = 1 << 14
      9 scrypt_r = 8
     10 scrypt_p = 1
     11 scrypt_l = 64
     12 
     13 p = argparse.ArgumentParser()
     14 p.add_argument("-a", action='store_true')
     15 p.add_argument("pas", nargs='?')
     16 p.add_argument("description", nargs=argparse.REMAINDER)
     17 a = p.parse_args()
     18 
     19 def hshpwd(s):
     20 	return scrypt.hash(s, scrypt_salt, scrypt_n, scrypt_r, scrypt_p, scrypt_l)
     21 
     22 if (a.a):
     23 	print("add")
     24 	if (a.pas == None):
     25 		print("need password to hash")
     26 		exit(1)
     27 	hsh = hshpwd(a.pas)	
     28 	dsc = bytearray(" ".join(a.description), "utf-8")
     29 	f = open("pass.dat", "ab")
     30 	f.write(dsc)
     31 	f.write(b"\x0a")
     32 	f.write(hsh)
     33 	f.close()
     34 	exit(0)
     35 
     36 f = open("pass.dat", "rb")
     37 
     38 trials = 0
     39 successes = 0
     40 while True:
     41 	nam = f.readline()
     42 	if len(nam) == 0:
     43 		break
     44 	trials += 1
     45 	hshcorrect = f.read(64)
     46 	print(nam[:len(nam)-1].decode("utf-8"))
     47 	suggest = getpass.getpass("> ")
     48 	hshsuggest = hshpwd(suggest)
     49 	if hshcorrect != hshsuggest:
     50 		print("wrong!\n")
     51 	else:
     52 		successes += 1
     53 		print("correct\n")
     54 
     55 print("{}/{} ok".format(successes, trials))
     56 
     57 f.close()