问题
I have this Helper Method:
CngKeyCreationParameters keyParams = new CngKeyCreationParameters();
keyParams.KeyCreationOptions = CngKeyCreationOptions.None;
keyParams.KeyUsage = CngKeyUsages.Signing;
keyParams.Provider = CngProvider.MicrosoftSoftwareKeyStorageProvider;
keyParams.ExportPolicy = CngExportPolicies.AllowExport;
String newguid = Guid.NewGuid().ToString();
CngKey newKey = CngKey.Create(CngAlgorithm2.Rsa, keyParams);
...
When I debug (my local machine), everything is OK, but in the production environment, the last sentence CngKey newKey = CngKey.Create(CngAlgorithm2.Rsa, keyParams); throws the following exception: "The system cannot find the file specified."
The main idea is to create a Self-Signed certificate (x509) to store it and use it for signing PDF documents.
Update:
StackTrace (using: CngKeyCreationOptions.None):
[CryptographicException: The system cannot find the file specified.
]
System.Security.Cryptography.NCryptNative.CreatePersistedKey(SafeNCryptProviderHandle provider, String algorithm, String name, CngKeyCreationOptions options) +2244958
System.Security.Cryptography.CngKey.Create(CngAlgorithm algorithm, String keyName, CngKeyCreationParameters creationParameters) +248
StackTrace (using: CngKeyCreationOptions.MachineKey):
[CryptographicException: Access denied.
]
System.Security.Cryptography.NCryptNative.FinalizeKey(SafeNCryptKeyHandle key) +2243810
System.Security.Cryptography.CngKey.Create(CngAlgorithm algorithm, String keyName, CngKeyCreationParameters creationParameters) +266
回答1:
Like vcsjones guessed, Azure Web Apps does not load the user profile by default.
You can enable the user profile by setting the app setting WEBSITE_LOAD_USER_PROFILE = 1 for the site in the portal. That might fix your error
来源：https://stackoverflow.com/questions/31685278/create-a-self-signed-certificate-in-net-using-an-azure-web-application-asp-ne