Browse by Tags
All Tags »
CryptAcquireContext (RSS)
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 all, When we try to access a key container, CryptAcquireContext may return NTE_BAD_KEYSET (or error # 0x80090016 or -2146893802 or "Keyset does not exist") for the following two reasons: 1) key container doesn't exist . You may repeat the call to CryptAcquireContext,
Read More...
Hi all, welcome back, CryptAcquireContext API will fail with error #2 or ERROR_FILE_NOT_FOUND if: 1) the user's profile is not loaded, as we saw in my post RSACryptoServiceProvider fails when used with ASP.NET . 2) AppData registry value in the following
Read More...
Hi all, welcome back, Most of the time we only have a smart card reader in our machine, and we only use one smart card to perform crypto operations. But what if we have several readers and cards , and those cards share the same CSP (Cryptographic Service
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...
Hi, welcome back, Let's try to understand a bit better what's going on my CryptoAPI Tracer script . Let's take a look to one of the most important breakpoints I set on a CryptoAPI function: bm Advapi32!CryptAcquireContextW ".printf \"\\n>>>>>>>>>>>>>>>>>>>>>>\\n\\nCryptAcquireContextW
Read More...
Hi, welcome back, I will talk today about a very common issue we face when we try to use .NET's RSACryptoServiceProvider ( http://msdn2.microsoft.com/en-us/library/system.security.cryptography.rsacryptoserviceprovider.aspx ) class with mandatory profiles
Read More...
