Hi all,
I'm using the RSACryptoServiceProvider and am getting the dreaded
"System.Security.Cryptography.CryptographicException: CryptoAPI
cryptographic
service provider (CSP) for this implementation could not be acquired."
It seems like this exception is common, but no real answer for it. I've
coded for 3 different scenarios, so *hopefully* I can add additional code
block for anymore
Here's my code. Any suggestions?
private static RSACryptoServiceProvider AcquireRSA()
{
RSACryptoServiceProvider rsa = null;
try
{
//first try with a container name, works in most ASP.NET situations
CspParameters cspParams = new CspParameters();
cspParams.KeyContainerName = BuildKeyContainerName();
cspParams.Flags = CspProviderFlags.UseMachineKeyStore;
rsa = new RSACryptoServiceProvider( cspParams );
}
catch
{
try
{
//try without a container name (works on XP )
CspParameters cspParams = new CspParameters();
cspParams.Flags = CspProviderFlags.UseMachineKeyStore;
rsa = new RSACryptoServiceProvider( cspParams );
}
catch
{
//just try without any parameters: works for logged on user
rsa = new RSACryptoServiceProvider( );
}
}
return rsa;
}
Thanks,
Dave
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