Security :: How To Authenticate Username And Password From Database
Mar 10, 2010
I got a username and password field which made by myself and a User database which is all manually made
So now I wish to know how to authenticate user using the username and password data enter by the user and match with the database data to verify user is a member and login?
For what i know, the code should be something like this
SELECT UserName, Password FROM dbo.User WHERE UserName - @UserName
@UserName = ?
How do i assign the value from my username text field to @UserName?
How do I use the FormsAuthentication.Authenticate(Username,Password) method to match against the generated Database?..since as far as I have read, it matches the values against the Web.config.
I am trying to implement a small site which requires users to login using Forms based authentication. I have followed the tutorials found on various sites on the net and in particular the one at [URL] This enabled me to get a sample environment in place but it seems as though I am having a problem authenticating a user for which I know the username and password are correct.
I have a ASP.Net 3.5 site with my login.aspx form in a folder named login, my default.aspx in the root of the site and my protected content in a folder called main.
I am authenticating against a SQL Server Express database, so I have ran the aspnet_regsql.exe command to populate my database.
I have added the following authentication/authorization lines to my web.config
I believe that my connection string and my database are ok because if i use the ASP.NET Configuration from within Visual Studio I can create and manage my users and I can also see them in the tables in the SQL Server. Also if I do enter any incorect credentials in my login page the page tells me that the password is incorrect.
so I will admit this is a pretty stupid question. To my defense, I have never done it before. So take pity. I followed Joe Stagner's video on using the built-in authentication. Now, I would like to query a database using VB.net codebehind to verify if the user exists. I am clueless. Yes, I have a connection string already.
I just begin creating a website for an organization. First page to be displayed in the login page. I dont have any knowledge in ASP.NET Security. On Login page, i want to display UserName field as disabled with the useralias of the user who currently logged into Windows. Password user has to provide and it should be that user's windows password.
How do i validate that password that user has entered is his windows password?
I´m building a home page where logged in users shall buy products. To be able to get to the buy page the user already has to be logged in. But when he shall execute the buy he has to reenter his password again to check the user a second time. How do I check if his entered password matches his user password? I´m using the ASP Membership library and I have passwordFormat="Hashed".
I am creating a website for reset the password in one of the application from the back end.
I have created a webpage with only one button called "RESET".
If user click the button, it should check the user have already access the application from the "USER" table. If no access, the message appears "You do not have an access."
If yes, next step whether the user have authenticate. If yes update the encrypted password from new table called "UMRESET" to the application table "USER" password.
I have created a test user/password on my web site. The intent is to have prospective clients login and try out the tool. Instead of telling them the userid/password of the test user, I'd like to tweak the Login wizard.
In the Load event, I was able to specify login1.UserName = "test user"
But when I try to specify the password, I'm told it is a readonly field. How can I 'force' a specific password? Or, how can I call the login event directly and pass the needed values?
For testing I used this:[URL]Encrypts only the password is not encrypted and username.Why not?For security reasons, I would like also to encrypts username.
I have an intranet run with IIS, with basic authentication config. See more in this screenshot:
[URL]
Of course, then, when user login, this screen will appear:
[URL]
After successfully login, is there any method to get UserName (very easy to get) and also Password (don't know yet) from asp.net coding (run at server)
I am trying to login usng form authentication from my web.config but it does not work. In the web.config i have the following: (i am going to make the password secure but just need to work with the basics
I had created an application which authenticate the user from the Active Directory,I had published the code on the server but when the page executes it ask for the username/password.i don't want this to happen, how to suppress this username/password screen.
I am writing a simple plugin for IE. I need to store a password and username setting for the user who uses the plugin. I know that I can store the username/password in the registry, I can manually encrypt it using the encription classes with .NET, or I can store it in a config file and encrypt the config file. I was wondering if there is a specific pattern/mechanism that I should use to store password and username.
I have a website that uses master page. I want a pop up to display so that user has to enter valid user name/psw in order to see pages. There will be only one username/password so web.config will store that info.
how to display pop up and check username and password.
I have only username. and want to check and grab the password from the database. It is BEFORE LOGGING IN. so I don't think the build-in asp.net functions could be used, right?
I have a folder with username and password over it.I wanna make a page where i can access files under that folders in .net and be able to download them.How to code that in VB.net?
Currently I am storing my username and password (passwordFormat="SHA1") credientails in my web.config. I would like to figure out how to access them in an xml file that I have stored in my App_Data directory rather than the web.config file because I do not want my application restarting everytime I manually add a user (small list of 5 authorized users for the CMS section).
