Strong Passwords

[jez123456]

Hi

I'm in the process of writing a program to ensure that a user will setup a
strong password for a particular application. One of the requirements is:-

A Strong Password must include characters from at least three of the
following four categories...
Uppercase characters (A though Z)
Lowercase characters (a though z)
Numeric digits (0 through 9)
Non-alphanumeric characters (!, $, #, %, etc.)

Does anybody know of a vb class, api or addin that can do this?

thanks

[Ken Tucker [MVP]]

Re: Strong Passwords

Hi,

You can use a regular expression for that.

http://www.regexlib.com/REDetails.aspx?regexp_id=1111

Dim regStrongPasswo rd As New
System.Text.Reg ularExpressions .Regex("(?=^.{6 ,10}$)(?=.*\d)( ?=.*[a-z])(?=.*[A-Z])(?=.*[!@#$%^&*()_+}{" ":;'?/>.<,])(?!.*\s).*$")
Trace.WriteLine (regStrongPassw ord.IsMatch("1A 2a$5"))
Trace.WriteLine (regStrongPassw ord.IsMatch("ap ple"))


Ken
---------------------------
"jez123456" <jez123456@disc ussions.microso ft.com> wrote in message
news:FE5C84D8-CA26-45A9-8263-2F1A458DDD95@mi crosoft.com...[color=blue]
> Hi
>
> I'm in the process of writing a program to ensure that a user will setup a
> strong password for a particular application. One of the requirements is:-
>
> A Strong Password must include characters from at least three of the
> following four categories...
> Uppercase characters (A though Z)
> Lowercase characters (a though z)
> Numeric digits (0 through 9)
> Non-alphanumeric characters (!, $, #, %, etc.)
>
> Does anybody know of a vb class, api or addin that can do this?
>
> thanks
>
>[/color]

[Hal Rosser]

Re: Strong Passwords


"jez123456" <jez123456@disc ussions.microso ft.com> wrote in message
news:FE5C84D8-CA26-45A9-8263-2F1A458DDD95@mi crosoft.com...[color=blue]
> Hi
>
> I'm in the process of writing a program to ensure that a user will setup a
> strong password for a particular application. One of the requirements is:-
>
> A Strong Password must include characters from at least three of the
> following four categories...
> Uppercase characters (A though Z)
> Lowercase characters (a though z)
> Numeric digits (0 through 9)
> Non-alphanumeric characters (!, $, #, %, etc.)
>
> Does anybody know of a vb class, api or addin that can do this?
>
> thanks[/color]

you may as well try Regular expressions
the pain of learning it will be well worth the trouble.
you can save many lines of <future> code - (however obfusicated it may look)
(its the beer that made Perl famous )
I think that's where the term "Swiss Army Chain Saw" was earned.

[Hal Rosser]

Re: Strong Passwords


"jez123456" <jez123456@disc ussions.microso ft.com> wrote in message
news:FE5C84D8-CA26-45A9-8263-2F1A458DDD95@mi crosoft.com...[color=blue]
> Hi
>
> I'm in the process of writing a program to ensure that a user will setup a
> strong password for a particular application. One of the requirements is:-
>
> A Strong Password must include characters from at least three of the
> following four categories...
> Uppercase characters (A though Z)
> Lowercase characters (a though z)
> Numeric digits (0 through 9)
> Non-alphanumeric characters (!, $, #, %, etc.)
>
> Does anybody know of a vb class, api or addin that can do this?
>
> thanks[/color]

you may as well try Regular expressions
the pain of learning it will be well worth the trouble.
you can save many lines of <future> code - (however obfusicated it may look)
(its the beer that made Perl famous )
I think that's where the term "Swiss Army Chain Saw" was earned.