Topic: (Challenge) Password Generator

[Mark]

Using the language of your choice, create a password generator with at least one argument. The argument could be number of characters for example.

We have one here for example.


Good luck and have fun!

[CAB]

I've notice that many require passwords to be a minimum length, at least one number, one capital & one lower case letter and some require a "special character".
So I can't use my password 4321. 

[andrew_nao]

I've notice that many require passwords to be a minimum length, at least one number, one capital & one lower case letter and some require a "special character".
So I can't use my password 4321. 

thats the kind of combo you see on luggage 

[Vaidas]

U53 L337 $P34|< Ph0R p455\/\/0RD

[JohnK]

Source code attached for a C++ CMake based project using a shared lib (dll).

[Stefan]

6 to 10 digits
Argument: 0, 1 or 2 for easy, medium or hard password (as in OP sample)

Code - Auto/Visual Lisp: [Select]

1. (defun password (x / l n r)
2.   (if
3.     (vl-position x '(0 1 2))
4.     (progn
5.       (setq l (nth x '((48 49 50 51 52 53 54 55 56 57 97 98 99 100 101 102 103 104 105
6.                         106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122)
7.                        (48 49 50 51 52 53 54 55 56 57 65 66 67 68 69 70 71 72 73 74 75 76 77
8.                         78 79 80 81 82 83 84 85 86 87 88 89 90 97 98 99 100 101 102 103 104
9.                         105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122)
10.                        (33 35 36 37 38 39 40 41 42 43 44 45 46 48 49 50 51 52 53 54 55 56
11.                         57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
12.                         81 82 83 84 85 86 87 88 89 90 91 93 94 95 96 97 98 99 100 101 102 103
13.                         104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126))
14.               )
15.             n (length l)
16.             )
17.       (repeat (+ 6 (rem (dos_random) 5))
18.         (setq r (cons (nth (rem (dos_random) n) l) r))
19.         )
20.       (vl-list->string r)
21.       )
22.      (not (princ "\nInvalid argument.\n0 - easy\n1 - medium\n2 - hard\n"))
23.     )
24.   )

[Vaidas]

Code: [Select]

; n - number of chars
; d - divisor
(defun kx:pwd (n d / p r)
 (setq p "")
 (repeat n
  (setq p (strcat p (chr (setq r (+ 33 (fix (* 0.94 (atoi (substr (rtos (getvar "date") 2 8) 15)))))))))
  (vl-cmdf "_delay" (/ r d))
 )
 p
)

; example:
(repeat 8
 (terpri)
 (princ (kx:pwd 8 4))
)

; or with random divisor:
(defun rnd ()
 (1+ (atoi (substr (rtos (getvar "date") 2 8) 16)))
)

(repeat 8
 (terpri)
 (princ (kx:pwd 8 (rnd)))
)


[JohnK]

This was a lot of fun Mark!!

I have been playing around with this challenge on and off. In the attached zip I have given the source and executable. What I have done since the above version was to start using the "Mersenne Twister" random number generator and also built a testing app. The testing app showed me that I needed to play with the "SEED" a little more (basically, wait for a bit then generate a new random number to get better/more random results). So I also started to use a higher precision timer class to give me a better/faster SEED calculator.

-e.g.

Code - C++: [Select]

1. ...
2. while(seed == oldSeed) {
3.     t2 = pctimer();
4.     seed = t1+t2;
5. }

The attached version generates a new random number for every character in the string now (waits a long time).

Anyways, fun challenge.

[Kerry]

Hack ...

Code - Python: [Select]

1. __codehimbelonga__ = 'KDUB'
2.  
3. import random
4. import string
5.  
6.  
7. def passGen(code_len=8):
8.     seed = string.ascii_letters + string.punctuation + string.digits
9.     return ''.join(random.sample(seed * code_len, code_len))
10.  
11.  
12.  

Code - Python: [Select]

1. print(passGen())
2.  
3. print(passGen(4))
4.  
5. print(passGen(9))
6.  
7. print(passGen(15))
8.  
9. print(passGen(25))
10.  

Code - Python: [Select]

1. #C:\Python33\python.exe "D:/_Python Source/theSwamp/PasswordGen.py"
2. '8I.Ap$~
3. zR&^
4. Hx4Uuuzgf
5. C3T%jez'"~~.hNU
6. RL:nTEKiMGUM$Ng6Pbq&gc3Lk
7.  

Good fun!!

[Kerry]

more Hack.
optional to add punctuation : 1 = add , 0 = remove

Code - Python: [Select]

1. __codehimbelonga__ = 'KDUB'
2.  
3. import random
4. import string
5.  
6.  
7. def passGen(code_len=8, punct=1):
8.     if punct == 1:
9.         seed = string.ascii_letters + string.punctuation + string.digits
10.     else:
11.         seed = string.ascii_letters + string.digits
12.     return ''.join(random.sample(seed * code_len, code_len))
13.  

Code - Python: [Select]

1. print(passGen())
2.  
3. print(passGen(4))
4.  
5. print(passGen(10))
6. print(passGen(10, 0))
7.  
8. print(passGen(15))
9. print(passGen(15, 0))
10.  
11. print(passGen(25))
12. print(passGen(25, 0))
13.  

Code - Python: [Select]

1. Y?XeE,tG
2. q%\3
3. (v?KE5$:Xq
4. kWPo6dIFR9
5. 7O[ap35]2'T,i28
6. Y4T1coxasagEqh5
7. _fu~bJ^tGFgS}U,M+n=5<I]<N
8. II9DxIZpQ3qw0UpBDQojTWNP4
9.  

[Lee Mac]

Attached is my take on the challenge. 

Great idea Mark 

[Kerry]

Code - C#: [Select]

1.   // Generate a new 12-character password with 1 non-alphanumeric character.
2.   string password = Membership.GeneratePassword(12, 1)
3.  

Namespace:  System.Web.Security
Assembly:     System.Web (in System.Web.dll)

http://msdn.microsoft.com/en-us/library/system.web.security.membership.generatepassword.aspx

[Kerry]

More hack ..

Code - Javascript: [Select]

1. function passGen(code_len)
2. {
3.   seed= "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
4.   result = "";
5.   for(x=0;x<code_len;x++)
6.   {
7.     result += seed.charAt(Math.floor(Math.random() * 62));
8.   }
9.   return result;
10. }
11.  
12.  
13. passGen(25); // :->  'Kjqwcxzb2YQMrWoTVBJVk6zcw'
14.  
15.  

That's it .. I have work to do

[LE3]

Code - C#: [Select]

1. [CommandMethod("PASS")]
2. public static void PasswordMaker()
3. {
4.     var doc = AcadApp.DocumentManager.MdiActiveDocument;
5.     var editor = doc.Editor;
6.     var passwordBase = Guid.NewGuid().ToString().Replace("-", "");
7.     var password = new StringBuilder();
8.     var random = new Random();
9.     const int size = 12;
10.     for (var i = 0; i < size; i++)
11.     {
12.         var ch = passwordBase[random.Next(0, passwordBase.Length)];
13.         password.Append(ch);
14.     }
15.     for (var i = 0; i < password.Length; i++)
16.     {
17.         var next = random.Next(i, password.Length);
18.         var s = password[next].ToString(CultureInfo.InvariantCulture);
19.         password = password.Replace(s, s.ToUpper());
20.     }
21.     editor.WriteMessage("\nPassword: {0} \n", password.ToString());
22. }

Command: pass
Password: 5b559DDbACCC
Password: 64E190E26FAF
Password: 4b88C7890744
Password: 2b1051CfD410
Password: 4D80De0914F3
Password: f75fD4348234
Password: D8D4849cD0F9
Password: 8d0d98424184
Password: 0B70B9705B30
Password: 8609f604a64B
Password: B6BF7377A70A

[JohnK]

After some more tinkering (fixed some issues) I want to move on to creating "pronounceable" passwords and using SHA1 like PWGEN (the tool mentioned in the OP). This is fun!

Code: [Select]

3Afdfdb2
GhGP2A4e
d7jXm3Df
kjsicalG
dmd4XEew
7kWAZ432
ADj7ledf
4injDnks
ajBjel5d
3XLnq7IW