System.Security.Cryptography.CryptographicException: keyset does not exist

Question

When I make x509 certificate to encypt and decypt message, I got some error information and could not fix this problem. Could someone ever happend to solve this bug? thanks.

Answer 1

The application might be trying to write to the following folder path: C:\Documents and Settings\All Users\Application Data\Microsoft\Crypto\RSA\MachineKeys

If your application is using impersonation or using the IUSR_MACHINENAME user, then configure the MachineKeys folder sercurities and give the user Read & Execute, List Folder Contents, Read, Write. If that doesn't work, try giving the Everyone user the same permissions.