X509Certificate Constructor Exception
.net, c#, x509certificate
Solution
Turns out there's a setting in the IIS Application Pool configuration (Application Pools > Advanced Settings) to load the user profile for the application pool identity user. When set to false, the key containers aren't accessible.
So just set `Load User Profile` option as `True`
Problem
``` //cert is an EF Entity and // cert.CertificatePKCS12 is a byte[] with the certificate. var certificate = new X509Certificate(cert.CertificatePKCS12, "SomePassword"); ``` When loading a certificate from our database, on our staging server (Windows 2008 R2/IIS7.5) we get this exception: ``` System.Security.Cryptography.CryptographicException: An internal error occurred. at System.Security.Cryptography.CryptographicException.ThrowCryptographicException(Int32 hr) at System.Security.Cryptography.X509Certificates.X509Utils._LoadCertFromBlob(Byte[] rawData, IntPtr password, UInt32 dwFlags, Boolean persistKeySet, SafeCertContextHandle& pCertCtx) at System.Security.Cryptography.X509Certificates.X509Certificate.LoadCertificateFromBlob(Byte[] rawData, Object password, X509KeyStorageFlags keyStorageFlags) ``` NOTE: This issue does not happen locally (Windows 7/Casini). Any insight is greatly appreciated.