i have implemented asp. net membership authentication and one of my users has forgotten his password.
The passwords are hashed and when i try retrieveing his password i get the error that password retrieval is not available for hashed passwords.
Should i reset the password?
I had been trying to solve this but there is a hidden key i wish someone point me to.
I had a simple membership database with users in first the Membership Provider configured for clear password to retrieve the original password .
Now a new requirement say that the password must be hashed and reset .
I configure the Membership password to hash , and Implemented the Reset Password Module.
My problem is as follow.
If the user is new registered user with the new configuration the password and the security answer is hashed.
also when I go and reset the password it continue to be hashed.
Now I thought that with new configuration if any previous user with clear text configuration , If he use the password Reset module , because my configuration now is hashed , I expected that the new password and security answer will be hashed . what happen is old user continue in clear text even if the configuration is hashed. so If I had new users everything is fine.
old users Membership Provider somehow know they had been stored in clear text and it keep change password and security answer in clear text . If I delete this user and create it , Membership Provider understand that everything will be hashed. I need to know how it know this , I need to migrate users not to delete and recreate users .
Also if there are no solution for that , I wish Microsoft Consider it in future cause it is a real user scenario, that can happen imagine a business system that related to membership user Id , deleting users and recreate them is not a solution .
I'm using a website as a frontend and all users are authenticated with the standard ASP.NET Membership-Provider. Passwords are saved "hashed" within a SQL-Database.Now I want to write a desktop-client with administrative functions. Among other things there should be a method to reset a users password. I can access the database with the saved membership-data, but how can I manually create the password-salt and -hash? Using the System.Web.Membership Namespace seems to be inappropriate so I need to know how to create the salt and hash of the new password manually.
View 4 RepliesI have a web form, which is to allow user to reset their password. When I clicked on the button, I got this error
"Input string was not in a correct format."
The code behind the button is:
[Code]....
When the user types in the new password, this new password will be hashed upon clicking the button and saved into the database.
I have a custom membership user class and custom MembershipProvider working against database. Due to security reasons the user passwords are stored in the database as hashed values. So my procedure
public override bool ValidateUser(string username, string password) is
{
//select hashed password from db
return (EncodePassword(password) == dbpassword)
}
[code]....
I am working on membership concepts in asp.net. Now i want to reset new password and getpassword for specific user.
this is my web.config code:
<add name="MySqlMembershipProvider" connectionStringName="SQL2005DB380ConnectionString" applicationName="MyAppName" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" passwordFormat="Encrypted" enablePasswordReset="true" minRequiredNonalphanumericCharacters="1"
passwordAttemptWindow="10" type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
How can I get old password and reset new password.
I am using Membership provider.. I integrated the aspnet member tables into my database.
I need the user to enter password on a data entry form and validate it against the membership tables.
How can I do this. This is the set up. I have few fields and user enters those fields and also enters the password, and submits the form. It is kind of like signature... i am looking for something like..
If txtPassword.text = membershipprovider password
{
//do this...
}
There seems to be something wrong with the create user wizard?I am using hashed password storage. When I change it to clear storage I see the user's password is being stored as something completly different than what they typed in.Example: changeme1 now equates to something like: 4W*KQQ4%=SIf I use 4W*KQQ4%=S as the password to login with it works but changeme1 does not.When I use the reset password wizard it updates the password just fine and it works when I login next.Any clues what could be causing this?
View 1 RepliesI using change password control, how can i change the password without enter the current password?
View 8 RepliesI've taken over a website which has around 3000 users registered using the standard asp.net membership provider on a SQL database. When the website was set up there were a lot of gaps in the system and we have a lot of tidying up to do of users with the same email addresses etc and invalid addresses so i'm just starting to look at how i can wrap all of this up and make administering the user accounts easier.
At the moment the account passwords are stored in "Hashed" format set in the web.config and obviously this doesn't allow for password retrieval. I want to know whether there is a way of converting all of these passwords from a hashed format to an encrypted format thus allowing me to create a password recovery page that doesn't then send the user a new password which is quite often something like "a*ns7#<3lx"
Ideally i'd like to convert all of these if that is possible so that I do a much simpler password retrieval system. If this is not possible can you tell me how i go about setting the passwordreset value not to contain all sorts of non-alpha/numberic characters?
I have an ASP.NET application that requires impersonation as an administrator user. In web.config:
<identity impersonate="true" userName="administrator" password="password"/>
The customer complained about saving the password in clear text format. Is there a way to save the password here as hashed?
i m searching a way to compare the password in hash formatting. the saved password in database is in hash formatting and trying to change password. the changed password should be save in hash formatting as well. plz tell me the solution.protected
{
HashedPassword =
void btnSubmit_Click(object sender,
[code]...
I have a system where I salt and hash passwords before saving them to the database, using FormsAuthentication in asp.net
What I want to do is, rather than ask the customer for their password each time, I just want 3 random letters from their password. How can I compare this to the hash in the database? Will hashing still work in this case? From what I gather hashing is only designed to be a one way process and shouldn't be decrypted, so is checking 3 random letters for a hash even possible?
Is there possibility to create new user with Membership.CreateUser but not to specify the user's password?
I tried with minRequiredPasswordLength="0" minRequiredNonalphanumericCharacters="0", but it didn't work.
I also tried with "" and DBNull.Value for password in the function but it didn't work.
Is there a way to do this?
I have developed a Silverlight app using forms authentication and the asp net membership, aspnetdb, the whole enchilada.The bug I see is that the password for my users change by them self every bow and then, the way I fix them is by deleting the user and creating them again, this has been I problem all the time.In a post I read the problem was manifesting because I didn't have a machineKey in my web.config, I now do, so I dunno what the problem is this time...Is there a definitive fix to this? can you please provide assistance?
View 11 Repliesi am working on membership concepts in asp.net. Now i want to reset new password and getpassword for specific user.
this is my web.config code:
[code]....
I have a question about the encryption key/keys the standard ASP.NET Membership provider uses for creating the password hashes.Although we haven't deployed this new system we are working on yet, we might switch servers in the future. So I thought it might be a good idea to specify the encryption key/keys in the web.config file to avoid any problems with mismatched hashes if we do switch servers.We use the standard ASP.NET Membership provider ("AspNetSqlMembershipProvider"), passwordFormat is set to "Hashed" and we use Forms authentication.The current web.config file initially did not have any machineKey element. I used the web application and had registered and thus created an account and the hash of my password is stored in one of the aspnet_* tables.Then I created a machineKey element in the web.config file, and specified validationKey, decryptionKey, validation and decryption attributes. I had expected not to be able to log in with my password anymore, but I was surprised that I could still do so with the existence of the new machineKey specifying new encryption keys.So - why can I still log in?Does the AspNetSqlMembershipProvider not use the encryption keys specified in machineKey?
View 7 RepliesI 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 have this code for changing a user's password when they click the password reset button (with extra code to log to ELMAH so I can try to figure out what is going wrong).
This is in ASP.NET MVC 2, using the standard aspnet membership provider, with a simple View like this:
New Password: ______
Confirm Password: ______
[Reset] [Cancel]
The route to this view is `/Account/Reset/guid`, where guid is the user's id in the aspnet membership database.
The key portion of the code is where it calls `user.ChangePassword()`. You can see that it logs a message when successful. The problem is that for some users, the success message is logged, but they can not log in with the new password. For other users it logs the success message and they can log in.
if (user.ChangePassword(pwd, confirmPassword))
{
ErrorSignal.FromCurrentContext().Raise(
new Exception("ResetPassword - changed successfully!"));
return Json(new {
Msg = "You have reset your password successfully." },
JsonRequestBehavior.AllowGet);
}
The full code listing is:
[Code]....
Edit: Adding a bounty to try to get this solved. This is one of the most annoying problems on my issue list, and I have no idea how to proceed.
I am using a custom membership provider with a custom ValidateUser method. The ValidateUser sends and additional parameter to authenticate my users (Username, Password, and Dealer). I created a custom stored procedure for ValidateUser to call. I copied over all my users from another table and encrypted all the passwords in the aspnet_membership table using the code below. My question is, how do I take the password the user enters in the login form and validate that against what is in my aspnet_membership Here is the code I used to encrypt the passwords (not even sure this was the right way to encrypt. Please tell me if I did this wrong):
public static string EncodePasswordNow(string originalPassword)
{
Byte[] originalBytes;
[code]...
I using control Membership and profile for change Your password. It is error when i login again.
View 2 RepliesOn registration user provides an email, the password must be mailed to the email ...
View 1 RepliesI've made a change to my web config membership properties and now I seem to be having issues changing my password. I originally had
minRequiredPasswordLength="7" minRequiredNonalphanumericCharacters="0"
I've change it to passwordStrengthRegularExpression="^(?=.{8,15}$)(?=.*[0-9])(?=.*[A-Z]).*" however it still keeps coming up telling me that I need at least 7 characters and one nonAlphaNumberic... I looked at my machine config and made some adjustments there so that
minRequiredPasswordLength="" minRequiredNonalphanumericCharacters="" were blank
I want to get code for reset password based on passwordquestion and passwordanswer in membership.
View 1 RepliesI simply want to know how to manually check if the value a user has provided for the answer to their security question matches their current answer on record. I want to use the build in support of the ASP.Net membership and membershipuser objects.
I see that via the passwordrecovery control that the actual answer can be returned. However I am currently not using this control and it would take a good bit to integrate it as it does not meet our user's requirements.
In a worst case scenario, getting the actual answer (like the passwordrecovery control does) and manually checking it in our application would be acceptable.
A best case scenario is some sort of API where I can pass in the user name and the answer to their security question that was provided and simply get an indication of whether answer was correct or not.