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Cryptography, Security, Debugging and more!

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How to sign EXE files with an Authenticode certificate (part 2)
Hi all, welcome back, The other day a customer of mine was having an issue with SignTool.exe when signing an EXE file. The EXE file was getting corrupted /unusable after signing it. When troubleshooting this issue, I had the chance to play a bit more Read More...
How to modify an Interop assembly to change the return type of a method (VB.NET)
Hi all, In some situations we may need to reference a COM dll in our Visual Studio project in order to use a specific COM object within our .NET application, and thanks to COM Interop we can do it. When we add a reference to a COM dll in our project, Read More...
How to read certificate extensions with CAPICOM (C#)
Hi all, welcome back, I recently had a customer who needed to retrieve extensions from certificates the easy way in .NET 1.1 , and they wanted to use CAPICOM for that. In .NET 2.0 and later we may use X509Certificate2 to achieve the same results (I strongly Read More...
Certificate has private key but we get "the keyset does not exist" error
Hi all, welcome back, The other day we were using CAPICOM in a client script run in Internet Explorer . We were trying to sign some string with the private key of a certificate we previously installed in the client machine, but we kept getting the error Read More...
CAPICOM Security Alerts are not localized
Hi all, welcome back, When we use CAPICOM , we may get some messages like the following: Security Alert: This Web site needs to decrypt data using your private key. Security Alert: This Web site needs to create a digital signature using your private key. Read More...
CAPICOM support on Windows Server 2008
Hi all, welcome back, If you remember all the confusion there was regarding CAPICOM support on Vista , now everything seems much clearer on Windows Server 2008. Our documentation team has done its homework, as we can see in CAPICOM Reference : "CAPICOM Read More...
CAPICOM support on Windows Vista
I know there has been a lot of confusion about this, because some articles on the web (i.e. MSDN) say CAPICOM is not supported on Vista , while others say it is. I have good news for you people, especially for those who want to do cryptographic operations Read More...
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