Machinekeys folder windows 7

Eight tips for working with X. Upon installation, both services generate machinekeys folder windows 7 self-signed X509 certificate.

An administrator then establishes a trust relationship between the two by exchanging the public key thumbprints of each service to the other. This is a common security model in B2B applications, and it means both services are able to authenticate without exchanging a shared secret or password, or being on the same active directory domain. 509 certificates on Windows is, well, a pain in the ass. It’s the source of a lot of bug reports. In this post, I’m going to share what I’ve learned about dealing with them so far.

On Windows a certificate typically has a . Sometimes it’s handy to export the X. On Windows we typically use the . Export call above, giving you both the certificate and private key. Tip 2: Understand the certificate stores Windows has an MMC snapin that allows you to store certificates. You might think that Windows has some special file on disk somewhere that this snapin manages.

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In fact, the certificates live in the registry and in various places on disk, and the certificate store just provides convenient access to them. Remove Snap-in, you can select the Certificates snap-in. Each certificate in the store lives in the registry, and the private keys associated with the certificate live on disk. My maps to the Personal folder in recent versions of Windows. Certificates sub key is a key with a long, random-looking name.

That name is actually the public thumbprint of the certificate. You can verify this by looking at the thumbprint properties from the snap-in. There’s an MSDN article with more information about these paths if you need more details. Tip 3: Understand that private keys live somewhere else As I mentioned, while in . NET you have an X509Certificate2 object containing both a private and public key, the “certificate” is only the public part.

Machinekeys folder windows 7

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While the certificate is stored in the paths above, the private keys are stored elsewhere. They might be stored under the Keys subkey for the store, or, they might be stored on disk. Then I’ll end up with the private key stored in the registry. I’m importing a certificate for the whole machine to use, so the certificate goes to the registry. But the private key is being written to disk under my personal profile folder. I figured the key would be imported. In reality, the file on disk just gets linked to.

If the key isn’t persisted, it can’t be used. In one case, the Local System account didn’t even have access. That prevented the user from being able to use the key. Tip 4: Understand the key storage flags As you might have gathered from above, getting the key storage flags right is crucial. And there’s no one sized fits all. This is more likely to work the first time, but other users will have trouble accessing the key.

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Also, beware of temporary profiles, which I’ll discuss later. It turns out that this writes a temporary file to the temp directory that on some versions of Windows doesn’t get cleaned up. To be safe, create your own file somewhere, and make sure you delete it when done. Since that folder isn’t really meant to be a profile folder, the Windows cryptography API will prevent you from trying to write anything.

This commonly happens when you are running under an IIS application pool, and the Load Profile option is turned off on the application pool. However it can also happen just sometimes, randomly. Maybe there was a problem with the registry that prevented a profile directory being created. Maybe someone got a little overzealous with group policy.

I’ve had all kinds of bug reports about this. Then log out, and restart the services. Tip 8: Know the tools to use There are two tools that will help you to understand what’s going on with certificate issues. This is a good way to see where the certificates and keys are being read from and written to. The other useful tool is a .

Conclusion The cryptography capabilities in Windows were obviously designed by someone way smarter than me. But I can’t help but feel like they were also designed for someone way smarter than me. There are plenty of ways that permissions, group policies, and other issues can creep in to really mess with your use of X. I wish I’d known of all these pitfalls when I first started using them in Octopus, and hopefully this post will be useful to you. Welcome, my name is Paul Stovell. Prior to founding Octopus Deploy, I worked for an investment bank in London building WPF applications, and before that I worked for Readify, an Australian . I also worked on a number of open source projects and was an active user group presenter.

I was a Microsoft MVP for WPF from 2006 to 2013. Comments are closed for this post. Have you tried giving the ASP. Make sure you propagate the permissions over the files and sub-directories too. Let me know how you get on.

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I just checked it again to make sure that I did propagate the permissions for all files and folders. I am assuming that I will have the same problem there. Thanks for any help that you can give me. ASPNET account is being denied access to a file or registry resource.

You may want to restart IIS to ensure the appdomain starts afresh for this. I’ll give it a try and let you know how I make out. Thank you, Josh – regmon located problem in HKCR Interface CLSID where APSNET user was denied access. Added permission and page ran fime. Regmon was able to locate the problem folder for me. I guess I had to wait until someone found the answer to this very common issue. Thanks a lot, I had the same problem and I solve it after read you post.

Josh’s suggestion worked fine for me. The solution worked for me too. I had this problem trying to go to parent paths using VS2005, I gave ASPNET permission without joy. It’s verry strange, because I only get it sometimes and not all the time. I have tried all the steps above and it still did not resolve the issue.

I have no idea, why it only happens sometimes. Are we allowed to discuss the problem here Josh? Fill your boots Chris but I’m not sure that many people will read that far down the comments. Why not try one of the forums on msdn or gotdotnet. Anyhow, I’ve followed all the steps suggested to no avail. When I ran filemon, I noticed that the aspnet_wp. The only two files that VS 2005 created were the default.

Oh, I was also hoping someone could clarify how to grant permissions via regedit? Indeed you hope somebody could clarify how to grant permissions via regedit? No Ryan S, please don’t expect something like you hope, that’s retro. Lord ol’mighty, it took me a week of constant searching to finally get this to work! As I mentioned, I tried all of the other suggested solutions above, so the ultimate solution may be a combination of the above solutions as well as deleting the key that has 0 KBytes. Hope this post saves someone some grief.

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I was just changing the permissions under the Sharing tab. Thanks for the post it WORKS! I had a trailing slash like you see in this sentence. Thanks josh it worked for me. 32 rather than regedit if you want to be able to set permissions on registry keys. I have an other problem now.

I found it with regmon following the suggestions here. FWIW, The machine was locked down pretty heavy before installing . This was a Windows 2000 machine running . 1 for a very long time. May be u’ll feel i m dumbass. I created a directory under my app root. After all tries my problem resolved with your indication, thanks a lot!

I would like to thank Weiping. 20 cents worth, i am using XP and have tried all of the suggestions above. I have tried every trick that has been laid out in this threadand nothing worked. The automated setup places a virtual directory with a site that I created. I ended up going into the site and setting the home directory there and eliminating the virtual. Great, my application has this problem. 2008 AS ADMINISTRATOR and it will work.

Hello, thank you very much for your post, after running regmon I found out the same access problem problem to the HKCR Interface CLSID , double clicked on that record, assigned the ASPNET user the permits and magically the site worked. Because i facing this problem too. I simply made ASPNET user member of Administrators . I cannot get this going for the life of me. Regmon is showing a lot of ‘NOT FOUND’.

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I also have SP3 and have tried everything above and nothing is working. I am seeing a lot of ‘NOT FOUND’ entries too. NET is a technology for creating dynamic Web applications. When building these pages, you can use ASP.

NET user controls to create common UI elements and program them for common tasks. 22135706 if any of you have accounts there to access it. I applied solution described by Jason Z. Josh Twist – All Rights Reserved.

Secure network communication has become increasingly important. TLS without needing to know the details of SSL. Visual Studio project available for download. This article provides everything you need to implement a secure connection. You will not need to buy and install any certificates, or ship a 3rd party dll. I have written procedural code in C and BASIC so that the flow can easily be followed, although an OOP implementation would probably be more suitable for production code. TLS utilizes TCP for a reliable connection.