// Oprogramowanie Roman Ryltsov
Use of separated certificate and private key might be confusing without understanding how parts or CryptoAPI are related one to another. Apparently, CryptSignMessage and friends require private key in order to create a digital signature. It is not a problem when private key resides right in the signing certificate (such as, for example, imported with…
IX509PrivateKey::Export exports key data from COM object, MSDN: strExportType [in] A BSTR value that specifies how the private key is exported. If the key was created by using a CNG KSP (Key Storage Provider), you can specify one of the values allowed by the pszBlobType parameter in the NCryptExportKey function. If the key was created…