Browse by Tags
All Tags »
CryptoAPI »
System.Security (RSS)
Hi all You may get an Access Violation exception when loading a certificate into a X509Certificate2 object, only after installing KB 938397 hotfix ( crypt32.dll v5.131.3790.4095 ) at Applications that use the Cryptography API cannot validate an X.509
Read More...
Hi all, Do you want to work with CNG and .NET 3.5 and don't want to P/Invoke into CryptoAPI & CNG API ? Check out Security.Cryptography.dll library at CLR Security : " Security.Cryptography.dll provides a new set of algorithm implementations to augment
Read More...
Hi all, Some time ago a customer of mine was getting the following CryptographicException when calling EncryptedXml.DecryptDocument method to decrypt an XmlDocument in their .NET app: [System.Security.Cryptography.CryptographicException] = {" The data
Read More...
Hi all, When creating an X509Certificate object in your .NET application (" X509Certificate cert = new X509Certificate(certBytes); ") you may see that two 0kb files are created in the Temp folder of your Windows Server 2003 , and are never deleted . After
Read More...
Hi all, The following C# sample shows a dialog to view a certificate and its properties . This is the same dialog that appears when we double-click on the cert file in Explorer. I'll use CryptUIDlgViewCertificate API and its CRYPTUI_VIEWCERTIFICATE_STRUCT
Read More...
Hi all, When working with RSACryptoServiceProvider , we may get an exception like the following: System.Security.Cryptography. CryptographicException : Unable to open the access token of the current thread at System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32
Read More...
Hi all, When using RSACryptoServiceProvider in i.e. ASP.NET you may get the following exception under a heavy load scenario: "System.Security.Cryptography.CryptographicException: CryptoAPI cryptographic service provider (CSP) for this implementation could
Read More...
Hi, welcome back, I will talk today about a very common issue we face when we try to use .NET's RSACryptoServiceProvider class in ASP.NET . When we try to create a new RSACryptoServiceProvider object in this scenario, we may get the following exception:
Read More...
