3 letter and 3 number random password generator

[David Eadie]

G'Day all,
I cant work out how to create a random password generator.
In specific the password (or well the output as a string) needs to be
in the following format:

abc123

So no capitals or other characters, Just the first three being letters
and the last three being numbers in random. Basically im creating a
list if these to write to a text file (I can do that part )

I have googled and come across many examples but none that will help
me.
Any ides?
Dave.

 

[Jim Edgar]

G'Day all,
I cant work out how to create a random password generator.
In specific the password (or well the output as a string) needs to be
in the following format:

abc123

So no capitals or other characters, Just the first three being letters
and the last three being numbers in random. Basically im creating a
list if these to write to a text file (I can do that part )

I have googled and come across many examples but none that will help
me.
Any ides?
Dave.

Does this help?

Private Sub Form_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
MyBase.Load
Randomize()
End Sub

Function GetPWD() As String
Dim sRet As String
sRet = Chr(Int((Asc("z") - Asc("a") + 1) * Rnd + Asc("a")))
sRet = sRet & Chr(Int((Asc("z") - Asc("a") + 1) * Rnd + Asc("a")))
sRet = sRet & Chr(Int((Asc("z") - Asc("a") + 1) * Rnd + Asc("a")))

sRet = sRet & CStr(Int(9 * Rnd()))
sRet = sRet & CStr(Int(9 * Rnd()))
sRet = sRet & CStr(Int(9 * Rnd()))

Return sRet
End Function

It's as simple as you can get (I think) but doesn't guarantee a unique value.

Jim Edgar

 

[hack123]

Hi Jim,
It works great although I cant understand how it does it.. (But
anyways...)
Now you said that you cant garantee the unique value, why is that? Is
it because there is
a chance of there being an identical value or is it a code specific
thing that might cause it?
If you get a few mins spare (or anyone ) would you be able to make
a little sence of the code to me? (Ie. How it operates through its
stages.)
Im still learning .net and this would be soo appreciated!!
Cheers
Dave.

 

[Cor Ligthert]

Hack,

Even when you use the Guid uniqness cannot be guaranteed when it is not
tested against an collection of existing ones.

http://msdn.microsoft.com/library/d...n-us/cpref/html/frlrfsystemguidclasstopic.asp

In this page is the text
A GUID is a 128-bit integer (16 bytes) that can be used across all computers
and networks wherever a unique identifier is required. Such an identifier
has a very low probability of being duplicated.

I hope this gives some idea's

Cor

 

[hack123]

Hi Cor and thanks for your time,
I have read about GUID's before, just not on the MS site.
The code that I have supplied will create about 9300 random passwords
for me, which is about 4 time more then I need at any one time for a
bulk import into active directory.
Cheers mate

Dave.