How To Create A Membership Provider Hashed Password Manually
Mar 30, 2010
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.
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Sep 9, 2010
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 .
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Jul 28, 2010
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?
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Jun 28, 2010
Does anyone has a solution (sample code) for the following features:
Create a randomGuid/Cryptographically strong random number Send a unique URL containing the random number to the user's email address When confirmed, the user is asked to change password
My provider is currently parametrized this way:
[code]....
The security issues with this type of procedure have been discussed here before.
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Jan 13, 2010
I using change password control, how can i change the password without enter the current password?
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Sep 8, 2010
Do I need to make a Custom Membership Provider or is there another way?
I have a project using ASP.NET Forms Authentication and the Microsoft SQL Membership Provider. The website is DONE. I use this provider everywhere. (Register, Login, Forgot Password, etc...) Until now, my website users have not needed complex passwords. The users' passwords were really just pins. The user could select anything for a password in the past. I had almost no restrictions for this website because none of the data is private or personal. However I have received new requirements.
Here are the new password requirements:
Passwords must be at least 8 characters in length. Passwords must be created using 3 of the following 4 character types:
Uppercase
Lowercase
Numeric
Punctuation
Do not use your name or User ID in the password. Do not use old passwords again later. Passwords must be changed at least every 60 days. Passwords may not contain your User ID or any part of your full name. Password history retention will prohibit use of the last 24 passwords. Passwords may be changed by users only once in any 6-day period.
I realize I am going to have to modify all of the following pages: Register, Login, Forgot Password, etc... fortunately I stopped using the default controls a long time ago.
My first thought was that I need to write a Custom Membership Provider. I don't know how to make the standard provider to do most of this. I could write code to do.
Do I modify the aspnet_membership table? Should I add my own table aspnet_something? Can the user profile table be used for this problem? Do I need my own MembershipUser class?
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Mar 26, 2010
How can I set up membership provider to only accept passwords that adhere to the following rules:
Minimum 6 characters
Contains at least one letter and number
Should be case sensitive
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Feb 9, 2011
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...
}
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Oct 12, 2010
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]...
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Jan 15, 2011
I 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.
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Jan 6, 2010
I use access membership prvider and it works. but I am unable to recover passwork. It says that "" membership provider doesn't support to get and zero password." It gives me the error in turkish and I translated it. Something like that. I am using the below code;
[Code]....
how can I do that?
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May 5, 2010
How do I create a custom membership for ASP.NET MVC 2 based on the ASP.NET membership provider?
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May 26, 2010
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?
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Mar 29, 2010
My question relates to membership providers. I have two websites that run on two different servers. One website is a community website that uses Telligent community server 2007. The other is a website that contains information. I have a form where users can request more information. What I would like to do is when a user requests more information, automatically create a user account in my community website. I was told that I can create a custom asp.net membership provider that will create a new user account in my community website. I have read some info at msdn and asp.net websites, but I am still unclear as to how I can create a custom membership provider that will work across different websites running on different servers.
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Aug 31, 2010
i am using membership provider to create new user.
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Feb 16, 2010
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]...
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Dec 18, 2010
any tutorials or materials that to implement a custom membership provider where I can using Linq to Entities for data retrieval in its internals?
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May 14, 2010
It's new to me to use the membership provider class.I was able to inherits the MembershipProvider in my library(HDIMembershipProvider.vb) and a lot of functions are generated. When I created the form to create a user like this:
[Code]....
Once the user clicks submit, how this function can be called ?
[Code]....
Each time I submit, the function is never called.
[Code]....
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Sep 24, 2010
I have a CreateUserWizard that uses the membership provider and creates a user in a sql server database.I need to change the IsApproved property on creation to false.I know that it can be done by createing a custom navigation template... but then i will have to code all the checks for the creation of the user...Is there any other way to access that attribute?this is the aspx code:
[Code]....
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Jun 16, 2010
I have a membership provider in my web.config with the passwordStrengthRegularExpression attribute set. I dropped an asp:CreateUserWizard in a page and tried to create a user with a weak password (ie didn't match the regex in the web.config). The validation fails and displays the message
Password length minimum: 7. Non-alphanumeric characters required: 1.
The message corresponds to the default password strength requirement. I know it's using the value I have set in the web.config to validate against but how do I change/set/override the error message that gets displayed when the validation fails?
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May 25, 2010
Is it possible to implement a "forgot password" using ASP.Net membership provider?
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Sep 21, 2010
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?
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Jul 20, 2010
I want to create a custom membership provider which doesnot has Password Question and Password Answer fields. But has some other extra fields.Is it possible? I am asking this because if I inherit MembershipProvider class then I get forced to use default CreateUser Method which has password question and password answer parameters. I don't want these parameters.
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Sep 27, 2010
I have watched the how to video on Creating a Custom Membership provider. So far it works great. My login control interacts well with it etc. Now i've created a Custom Role Provider. I've created a class that inherits the RoleProvider base class and i've added code to each Sub. My question is, what is the best way to implement the role provider, considering I get the Roles etc from the database?
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Jul 27, 2010
I am trying to build an application that
1. user can login by their AD account and password.
2. AD account can be assigned to different group.
I know there is a training video - [URL] to teach how to use the tool to provision the membership schema to SQL server for Forms authentication. but how can I use AD authentication with this?
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