Password Validation in C#

Question

I am planning to create a Password security that uses a 4 checkboxes in every uppercase letter, lower case letter, alpha, and numeric, once the admin tic a checkbox to chose from 4 the password validation will allow to do the security, combination of four also allowed..

Please help me to build the concept or direct me on any article related on my plan..

Password Strength:

   o uppercase
   o lowercase
   o alpha
   o numeric

Thank you so much!!

 

 

Answer 1

hi Pankaj,
if you are creating dynamic query then at the time of creating sql string you can do following example :

 wherestring+=txt.Replace("'","''"); 

// single quote is passed string in
//first parameter and single quote is written twice '' for second.

Answer 2

Hi

when you are use the single quite you need add extra two quote to string.or else is make to sql injection.

About this please take look,

http://archives.devshed.com/forums/windows-107/sql-injecttion-401471.html

thank you

Answer 3

Thanks

Answer 4

Thanks

Answer 5

Hi you just need to Replace every Single timeWriten Quote to Double Time

suppose you are inserting

string " pankaj's Name "

then you should write String Like

"Pankaj' 's name "     { Dobule time Single Quotes before 's' )

Thats it :)

Better to Write Function That Will Replace Every Single Time Quote to Write it Double time in String

public string CSQ(string str)
{
 
    return Strings.Replace(str, "'", "''");
}


if i Helps you please check "Do you like this answer"

Answer 6

Please see the following two links:
http://it.toolbox.com/wiki/index.php/How_do_I_escape_single_quotes_in_SQL_queries%3F
http://blog.sqlauthority.com/2008/02/17/sql-server-how-to-escape-single-quotes-fix-error-105-unclosed-quotation-mark-after-the-character-string/