Restarting the service after opening the provider breaks the connection and forces you to restart the entire application. Step by step: Open the provider NCryptOpenStorageProvider(myProvider, MS_KEY_STORAGE_PROVIDER, 0) — will be "00000000" (ERROR_SUCCESS) Restart the CNG Key Isolation service Reopen the provider NCryptOpenStorageProvider(myProvider, MS_KEY_STORAGE_PROVIDER, 0) — will be "80070006" (ERROR_INVALID_HANDLE) How to properly reopen the provider after restarting the service without restarting the application?

NCryptOpenStorageProvider + KeyIso

kazuser 0

Restarting the service after opening the provider breaks the connection and forces you to restart the entire application.

Step by step:

Open the provider NCryptOpenStorageProvider(myProvider, MS_KEY_STORAGE_PROVIDER, 0) — will be "00000000" (ERROR_SUCCESS)
Restart the CNG Key Isolation service
Reopen the provider NCryptOpenStorageProvider(myProvider, MS_KEY_STORAGE_PROVIDER, 0) — will be "80070006" (ERROR_INVALID_HANDLE)

How to properly reopen the provider after restarting the service without restarting the application?