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HomeHomeOur CommunityOur CommunityGeneral Discuss...General Discuss...DotNetNuke SecurityDotNetNuke Security
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2/11/2008 7:56 PM
 
Ferry Mulyono

Joined: 7/23/2005
Posts: 45

Hi all,

Currently I'm negotiating with a client; I'm proposing a system that's accessibly by public from the Internet, and basically they're concern with the security of their data. Anyone knows in detail how security mechanism in DNN works? I mean, I know they used ASP.NET Provider and all, but I'm more interested in the logic implemented in those provider (encryption algorithm, etc).

Thanks

Ferry Mulyono
DotNetNuke Skins
 
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2/11/2008 8:08 PM
 
cathal connolly


cathal connolly's Avatar

www.cathal.co.uk
Joined: 4/9/2003
Posts: 9676

If you take a look in your web.config for the AspNetSqlMembershipProvider node you'll see the comment block that describes the available options, and the declaration that sets them. By default we use triple-des encryption. All password encryptions also automatic set a SALT value to protect against dictionary based attacks. In additioin you require passwords of at least 7 characters, but you can change this to higher values and also include a mandatory number of non-alphanumeric characters. Once logged in a forms authentication cookie is created and encrypted to ensure it's non-tamperable.

Cathal

Buy the new Professional DNN7: Open Source .NET CMS Platform book Amazon US
 
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2/11/2008 9:15 PM
 
Ferry Mulyono

Joined: 7/23/2005
Posts: 45

Hi cathal,

I was just reading one of your article regarding the security analysis on DNN, and it's very useful. Thanks for the very quick and explanatory reply, it answers all my questions. But I do have one more question, regarding the article you published. In that article, you mentioned that "Dotnetnuke has a built in function under the host menu that will accept al Password Encryption Key, and will encrypt the user details in the database. ". I was wondering if this is true? I'm using DNN 4.8.0 now, and I can't seem to find such option. Can you help me find it?

Thanks a lot =)

Ferry Mulyono
DotNetNuke Skins
 
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2/11/2008 11:13 PM
 
Sanjay Mehrotra

www.acuitisolutions.com
Joined: 5/30/2003
Posts: 591

Ferry - that was an old option from the 2x days of DNN. With the newer (3x and 4x versions), there is a machinekey that is set in your web.config which it uses to hash the passwords. It becomes crucial to carry this key around (from version to version) otherwise your users would not be able to log in. 
The first time you setup a dnn site, it will set the machine keys for you which would then be used when people log into their accounts on dnn...

 

Sanjay

 

AcuitiDP - Oracle Data Provider for DotNetNuke
 
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2/11/2008 11:24 PM
 
Ferry Mulyono

Joined: 7/23/2005
Posts: 45

If I'm not mistaken, those machine keys are used only to encrypt the password of the whole portal right? I was wondering, if it's possible to encrypt the whole profile (names, address, etc) of registered users automatically?

Ferry Mulyono
DotNetNuke Skins
 
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