Convert A 40 Character SHA1 Hash To A 20 Character?
Mar 17, 2010
I have a legacy MySQL database which stores the user passwords & salts for a membership system. Both of these values have been hashed using the Ruby framework - roughly like this:
So both values are stored as 40-character strings (varchar(40)) in MySQL. Now I need to import all of these users into the ASP.NET membership framework for a new web site, which uses a SQL Server database. It is my understanding that the the way I have ASP.NET membership configured, the user passwords and salts are also stored in the membership database (in table aspnet_Membership) as SHA1 hashes, which are then Base64 encoded (see here for details) and stored as nvarchar(128) data.
But from the length of the Base64 encoded strings that are stored (28 characters) it seems that the SHA1 hashes that ASP.NET membership generates are only 20 characters long, rather than 40. From some other reading I have been doing I am thinking this has to do with the number of bits per character/character set/encoding or something related.
So is there some way to convert the 40-character SHA1 hashes to 20-character hashes which I can then transfer to the new ASP.NET membership data table? I'm pretty familiar with ASP.NET membership by now but I feel like I'm just missing this one piece. However, it may also be known that SHA1 in Ruby and SHA1 in .NET are incompatible, so I'm fighting a losing battle.
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I looked up the msdn documentation and it says that InvalidUserName is thrown when it does not find the username in the database, which is fine because the user I am creating should not exist in the database. If I use test@example.com, it works, but if I try it with test.@example.com, the status from Membership.CreateUser is InvalidUserName.
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I am using AJAX Toolkit's Calendar extender control.
When the control is rendered on page, the day names are 2 character long and shown as "Su", "Mo", "Tu", "We", "Th", "Fr" and "Sa".
Instead, I want it to be rendered as 3 character long format as "Sun", "Mon", "Tue", "Wed", "Thu", "Fri" and "Sat". note that I further need to localize this application too. So, I probably need some setting that could do the magic instead of overwriting on some server side event to achieve it.
There is probably some settings that I am not aware of.
The code for localizing the Calendar extender is as follows (in case if you need to test).
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This website [URL] does not accept the pipe character | in the URL
This works [URL]
but this doesn't
[URL]
It looks like the pipe is an issue as
[URL]
works.
I need to stop this because a third party called Omniture needs to access this website automatically with the | in the URL. I cannot ask them to encode the | as they are a big company. They say there is some way to allow the | but I am not sure how.
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if(newpassword.Length !=8) { //do something }
Like the Length property, is there some property that can check if the password contains at least one non-alphanumeric character?
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Dim fs As FileStream = File.Open(FileName, FileMode.Open, FileAccess.Read) Dim buffer(fs.Length) As Byte fs.Read(buffer, 0, fs.Length) Dim xmlString As String = System.Text.UTF8Encoding.UTF8.GetString(buffer) fs.close()
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I do need a working ASP.NET C# code to replace characters in a string.
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