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blackmorpheus
Expert Cheater
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Joined: 05 Apr 2008
Posts: 159
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 Posted: Sun Sep 06, 2009 8:16 am Post subject: C# password generator |
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Hi, I'm writing a password generator for a friend.
It should produce a .txt file with password strings:
aaaaa
aaaab
aaaac
aaaad - z
aaaba etc.
it needs to generate password with length 6 till length 15, every possibility.
i've created the following code, but it isn't very fast and efficient i think.
| Code: |
public string keyList = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ123456789";
TextWriter tw = new StreamWriter(storage); // storage is .txt file
string txt = "";
// 4 letter test
foreach (char a in keyList)
{
foreach (char b in keyList)
{
foreach (char c in keyList)
{
foreach (char d in keyList)
{
text = a.ToString() + b.ToString() + c.ToString() + d.ToString();
tw.WriteLine(text);
}
}
}
}
//5 letter test
foreach (char a in keyList)
{
foreach (char b in keyList)
{
foreach (char c in keyList)
{
foreach (char d in keyList)
{
foreach (char e in keyList)
{
text = a.ToString() + b.ToString() + c.ToString() + d.ToString() + e.ToString();
tw.WriteLine(text);
}
}
}
}
}
tw.Close();
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Anyone has a more efficient way of creating this .txt file?
C# or c++, doesn't really matter.[/code]
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NothingToShow
Grandmaster Cheater Supreme
 Reputation: 0
Joined: 11 Jul 2007
Posts: 1579
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| Posted: Sun Sep 06, 2009 8:52 am Post subject: |
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When I used to mess around with Python, I found this source on uselesspython.com
| Code: | # A routine to generate all possible strings from an alphabet.
# Author : Rohit Krishna Kumar
# Home Page: http://www.geocities.com/rohitkkumar
def brutef(l,depth):
global MAXDEPTH
if(depth==0): # String has been generated
s=""
for k in l: # Make the list into a string
s+=k
print s # Call your password cracking routine here ;)
else:
for i in range(ord('a'),ord('z')+1): # Alphabet is a-z
l[MAXDEPTH-depth]=chr(i)
brutef(l,depth-1)
MAXDEPTH=3 # Length of the string. Increase this if needed
l=[]
for i in range(MAXDEPTH):
l.append('')
brutef(l,MAXDEPTH) |
It works fine for me, and I don't think it should be hard to recode it to C#/C++ and make it output in a text file instead of console.
An idea for your source code, would be to write all the strings into an array-kind-of variable, and when it's ended, then write it to a txt. That would increase speed I assume.
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hcavolsdsadgadsg
I'm a spammer
![]() Reputation: 26
Joined: 11 Jun 2007
Posts: 5801
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| Posted: Sun Sep 06, 2009 8:44 pm Post subject: |
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easiest way: http://www.asciitable.com/
just generate random numbers between whatever range you want, bam, impossible password generated.
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