asked on

FormsAuthentication.HashPasswordForStoringInConfigFile for VB

Hi Experts, I have an ASP.NET application that I am using to create hashes when registering a user. On the other hand I have a VB.NET application that is suppose to check this hash to authenticate the user. What is the VB.NET Windows Application equivalent of FormsAuthentication.HashPasswordForStoringInConfigFile please?

This is how I am generating the hash

Dim hash As String
        hash = FormsAuthentication.HashPasswordForStoringInConfigFile(Label1.Text & "salt", "SHA1")

Open in new window

ASKER CERTIFIED SOLUTION

Ark

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Ark

If you prefer function:

Private Function HashPasswordForStoringInConfigFile(password As String, passwordFormat As String) As String
    Dim ha As System.Security.Cryptography.HashAlgorithm
    If passwordFormat.Equals("sha1", StringComparison.OrdinalIgnoreCase) Then
        ha = Security.Cryptography.SHA1.Create
    ElseIf passwordFormat.Equals("md5", StringComparison.OrdinalIgnoreCase) Then
        ha = Security.Cryptography.MD5.Create
    Else
        Throw New ArgumentException("Invalid password format")
    End If
    Return String.Join("", ha.ComputeHash(
                 System.Text.Encoding.UTF8.GetBytes(password)).
                 Select(Function(x) x.ToString("X2")))
End Function

Open in new window

David C

ASKER

Great! First solution works just fine although I think the second is missing the salt?

Ark

Second solution is a copy of FormsAuthentication.HashPasswordForStoringInConfigFile function. You can call it in the same way:

Dim hash As String
hash = HashPasswordForStoringInConfigFile(Label1.Text & "salt", "SHA1")

Open in new window