Hello, I have seen similar posts here using the Cryptography Library in .Net. So I guess mine is similar i.e. something to do with access permissions. However the solutions do not apply as I am using a different Cryptography Class. Basically I am trying to storetwo Certificates, one for the Server and one for the Client to provide the default username/password encryption in WCF wsHttp binding. The usual way is to use a Certificate Store, which is relatively easy to do in WCF. However I couldnot see how I can access the Certificate Stores to add in my certificates, so I decided that I could save the Public (.cer) and Private(.pfx) certs in the file system on the App_data folder. I found an exampleat http://www.codeproject.com/KB/WCF/wcfcertificates.aspxto load these files and use them. Thisworks fine on my Local IIS 7server but does not work when I publish it. I have a few Websites on DiscountASP, so I have tried it on IIS 6 and IIS 7 Servers and I get different errors. On IIS 6, the error is "CryptographicException: The system cannot find the file specified", whereas on IIS7 it is "CryptographicException: The specified network password is not correct.", itbreaks in the exact same place - see the trace output below. I have checked to make sure the pfx file exists, by inserting a try/catch block and know the error is on the line "return new X509Certificate2(fullPath, password)" - fullpath is verified, so it must be a permissionexception with the X509Certification2 initialisation. Please can you tell me the best way to handle deployed Certs in WCF and .Net 3.5? Output trace from error; IIS 7 Server ********************************************** [CryptographicException: The specified network password is not correct. ] System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32 hr) +33 System.Security.Cryptography.X509Certificates.X509Utils._LoadCertFromFile(String fileName, IntPtr password, UInt32 dwFlags, Boolean persistKeySet, SafeCertContextHandle& pCertCtx) +0 System.Security.Cryptography.X509Certificates.X509Certificate.LoadCertificateFromFile(String fileName, Object password, X509KeyStorageFlags keyStorageFlags) +237 System.Security.Cryptography.X509Certificates.X509Certificate2..ctor(String fileName, String password) +131 DevAge.ServiceModel.CertificateHelper.LoadFromFile(String file) in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateHelper.cs:39 DevAge.ServiceModel.Configuration.ServiceElement.GetServerCertificate() in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\Configuration\ServiceCollection.cs:47 DevAge.ServiceModel.CertificateServiceHost.ApplyConfiguration() in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateServiceHost.cs:37 System.ServiceModel.ServiceHostBase.InitializeDescription(UriSchemeKeyedCollection baseAddresses) +190 System.ServiceModel.ServiceHost.InitializeDescription(Type serviceType, UriSchemeKeyedCollection baseAddresses) +32 System.ServiceModel.ServiceHost..ctor(Type serviceType, Uri[] baseAddresses) +139 DevAge.ServiceModel.CertificateServiceHost..ctor(Type serviceType, Uri[] baseAddresses) in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateServiceHost.cs:18 DevAge.ServiceModel.CertificateServiceHostFactory.CreateServiceHost(Type serviceType, Uri[] baseAddresses) in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateServiceHostFactory.cs:26 System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses) +331 System.ServiceModel.HostingManager.CreateService(String normalizedVirtualPath) +11656060 System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +42 System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +479 [ServiceActivationException: The service '/Test/MathService.svc' cannot be activated due to an exception during compilation. The exception message is: The specified network password is not correct. .] System.ServiceModel.AsyncResult.End(IAsyncResult result) +11527194 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +194 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.ExecuteSynchronous(HttpApplication context, Boolean flowContext) +176 System.ServiceModel.Activation.HttpModule.ProcessRequest(Object sender, EventArgs e) +278 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75 IIS6 Server ********************************************** [CryptographicException: The system cannot find the file specified. ] System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32 hr) +33 System.Security.Cryptography.X509Certificates.X509Utils._LoadCertFromFile(String fileName, IntPtr password, UInt32 dwFlags, Boolean persistKeySet, SafeCertContextHandle& pCertCtx) +0 System.Security.Cryptography.X509Certificates.X509Certificate.LoadCertificateFromFile(String fileName, Object password, X509KeyStorageFlags keyStorageFlags) +237 System.Security.Cryptography.X509Certificates.X509Certificate2..ctor(String fileName, String password) +131 DevAge.ServiceModel.CertificateHelper.LoadFromFile(String file) in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateHelper.cs:39 DevAge.ServiceModel.Configuration.ServiceElement.GetServerCertificate() in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\Configuration\ServiceCollection.cs:47 DevAge.ServiceModel.CertificateServiceHost.ApplyConfiguration() in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateServiceHost.cs:37 System.ServiceModel.ServiceHostBase.InitializeDescription(UriSchemeKeyedCollection baseAddresses) +190 System.ServiceModel.ServiceHost.InitializeDescription(Type serviceType, UriSchemeKeyedCollection baseAddresses) +32 System.ServiceModel.ServiceHost..ctor(Type serviceType, Uri[] baseAddresses) +139 DevAge.ServiceModel.CertificateServiceHost..ctor(Type serviceType, Uri[] baseAddresses) in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateServiceHost.cs:18 DevAge.ServiceModel.CertificateServiceHostFactory.CreateServiceHost(Type serviceType, Uri[] baseAddresses) in E:\testprojects\samples\WCFCertificates\DevAge.ServiceModel\CertificateServiceHostFactory.cs:26 System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses) +331 System.ServiceModel.HostingManager.CreateService(String normalizedVirtualPath) +11656092 System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +42 System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +479 [ServiceActivationException: The service '/MathService.svc' cannot be activated due to an exception during compilation. The exception message is: The system cannot find the file specified. .] System.ServiceModel.AsyncResult.End(IAsyncResult result) +11527290 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +194 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.ExecuteSynchronous(HttpApplication context, Boolean flowContext) +176 System.ServiceModel.Activation.HttpModule.ProcessRequest(Object sender, EventArgs e) +278 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
