Random number/letter generator

[tshad]

Is there a good random number/letter generator out there?

I just want to be able to generate a password that has letters and or
numbers about 10 characters long.

Thanks,

Tom

[Kevin Spencer]

How about System.Random?

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
What You Seek Is What You Get.

"tshad" <ts**********@f tsolutions.com> wrote in message
news:ue******** ******@TK2MSFTN GP10.phx.gbl...

Is there a good random number/letter generator out there?

I just want to be able to generate a password that has letters and or
numbers about 10 characters long.

Thanks,

Tom

[Brock Allen]

> How about System.Random?

I don't think this implementation is sufficient for cryptographic purposes.
Check out System.Security .Cryptography.R andomNumberGene rator and the RNGCryptoServic eProvider
implementation.

-Brock
DevelopMentor
http://staff.develop.com/ballen

[tshad]

"Brock Allen" <ba****@NOSPAMd evelop.com> wrote in message
news:66******** **************@ msnews.microsof t.com...

How about System.Random?
I don't think this implementation is sufficient for cryptographic
purposes. Check out System.Security .Cryptography.R andomNumberGene rator and
the RNGCryptoServic eProvider implementation.

I'll check that out.

What I came up with temporarily was:

*************** *************** *************** *************
Function RandomNumber(mi n as Integer, max as Integer) as integer
Dim random as Random = new Random()
RandomNumber = random.Next(min , max)
End Function

Function RandomString(si ze as integer, lowerCase as boolean) as string
Dim builder as StringBuilder = new StringBuilder()
Dim random as Random = new Random()
Dim i as integer
dim ch as char

for i = 0 to size -1
ch = Convert.ToChar( Convert.ToInt32 (25 * random.NextDoub le() + 65))
random.NextDoub le()
builder.Append( ch)
next
if(lowerCase) then RandomString = builder.ToStrin g().ToLower()

RandomString = builder.ToStrin g()
end function
*************** *************** *************** *************** ****

I would then do the following:

Dim builder as StringBuilder = new StringBuilder()
builder.Append( RandomString(6, false))
builder.insert( 3,RandomNumber( 0, 10))

password1.text = builder.ToStrin g()

This seems to do what I want, at least for now.

Thanks,

Tom
-Brock
DevelopMentor
http://staff.develop.com/ballen