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all groups > dotnet security > september 2005 > threads for september 15 - 21, 2005

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TripleDESCryptoServiceProvider
Posted by Tim Wallace at 9/21/2005 12:17:53 PM
I'm experiencing something that I am not certain is normal or a problem. I have a byte array that, once run through a method that encrypts using Triple DES, the array now "appears" to be truncated. By this I mean that the final three bytes are now showing 0 (zero) in the debugger. When I de...more >>


simple way to encrypt data
Posted by z f at 9/21/2005 12:00:00 AM
Hi, i need a simple way ( no app blicks ) to encrypt and decrypt data what is the object/method i should use? TIA. ...more >>

Code Signing Certificates for individuals / open-source
Posted by Will at 9/20/2005 11:09:02 PM
Why do code signing authorities refuse to issue certificates to individuals or open-source projects? Are they seriously saying that organisations like Enron, Worldcom, etc are more trustworthy than the people who contribute to GotDotNet? Why do they cost so much? Code Signing is a great ide...more >>

LogonUser
Posted by Dick at 9/20/2005 10:05:05 AM
I'm trying to use the LogonUser function from "advapi32.dll" as described in the KB article "How to validate Windows user rights in a Visual Basic .NET application" but the function returns the error message "A required privilege is not held by the client.". Please can you explain what this me...more >>

Can i run more then one session on the computer?
Posted by Shurick at 9/20/2005 12:27:03 AM
Multiple sessions is pretty feature of XP. In domain environment its not working by default. How can i use this feature in domain environment? May be Vista can help me?...more >>

how to get the number of milliseconds between two System.DateTime objects
Posted by Daniel at 9/19/2005 5:02:35 PM
how to get the number of milliseconds between two System.DateTime objects ...more >>

data size and RSA encryption
Posted by Tim Wallace at 9/19/2005 12:34:48 PM
I am getting an error stating "...data to be encrypted exceeds the maximum for this modulus of 256 bytes". I am at a loss as to how this could be, as I'm only attempting to encrypt less than 30 characters. Does anyone have any ideas as to what could cause this error? I'm creating my keys in...more >>

Delegation across trusted domains
Posted by Paul at 9/19/2005 2:21:03 AM
Hi, I've already posted this in a different group, but I've received no reponses... ------- I have some load balanced IIS servers, which get content and .NET applications from clustered file servers using UNC shares. The content within the shares are secured using NTFS file permissions. ...more >>



Is WindowsPrincipal is Remotable ?
Posted by Karthik at 9/16/2005 8:19:02 AM
This is regarding passing WindowsPrincipal from my client to the server; I’m developing a Windows based application in c#. When ever I try to pass WindowsPrincipal object from the client to server it says “Exception ha been throw at target invocation…” I’m using call context (tha...more >>

xml based AzMan and ActiveDirectory
Posted by A at 9/15/2005 11:59:39 AM
Hello I'm using xml based AzMan (I'm on Win XP) and Active Directory users. I want to be able to know if a user belongs to a certain role from an app. If I'm doing like in the code below, I'm not capable to see in the windows principal the roles defined in the .xml AzMan file. IAzApplicat...more >>

Unable to run c++ .net executable from a network drive hooked to server
Posted by kamisettyk NO[at]SPAM gmail.com at 9/15/2005 11:59:01 AM
when i try to run a C++ .net executable from a network drive hooked to server it throws the following execption SYSTEM.SECUTRITY.POLICY.POLICYEXECPTION. i have tried copying the project in to the network drive and running it from there but it shows the same error...any suggestions!!! your hel...more >>

Problems trying to write to Custom Eventlog
Posted by moochin NO[at]SPAM gmail.com at 9/15/2005 10:39:03 AM
I might be going out of my mind but I have been looking at this for hours, and after a lot of smoking and banging my head I think I have solved the problem, and thought someone might be interested. I have an ASP.NET website which I needed to log errors to a custom log. I create the custom log ...more >>

Importance of salt
Posted by vla10d NO[at]SPAM gmail.com at 9/15/2005 5:51:28 AM
Hello, I have one question regarding the importance of salt in encryption. As I understand, the salt is used to prevent dictionary attacks. Also, it is recommended that the salt isn't always the same, and that it should be randomly generated for each message. This random salt should then be...more >>

Windows Security pops up when executing javascript in an asp.net p
Posted by Lumen at 9/15/2005 3:33:03 AM
Hello, I've got a really strange problem; this is the case. I've got a web application that uses windows authentication, other users are not welcome. In IIS I've checked Windows Authenticity and unchecked anonymous acces. When users want to enter the site, the windows dialog popsup as expec...more >>

must use weak key in 3des
Posted by Steen at 9/15/2005 12:57:04 AM
Hi, I am trying to convert this Java code into C#: JAVA: SecretKeySpec systemKey = new SecretKeySpec("TEST KEYTEST KEYTEST KEY".getBytes(), "TripleDES"); Cipher cipher = Cipher.getInstance(DESEDE_ECB_NONE); cipher.init(Cipher.ENCRYPT_MODE, systemKey); byte[] eac = cipher.doFinal(cardRand...more >>

.NET 2.0: code access security / authentication
Posted by Lloyd Dupont at 9/15/2005 12:00:00 AM
I'm writing a .NET 2.0 app I want to deploy it in the net. Apparently (due to an "unknow publisher warning" while downloading in the browser) I have to give a strong name to my installer & my components. My (.NET 2.0 beta2) project is a mix of C# & MC++. - To authenticafe my MSI I need a .sp...more >>


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