Using Chilkat with la Carta Nazionale dei Servizi delle Camere di Commercio d’Italia

To use Chilkat for signing XML with a CNS smartcard, the certificate must be installed on the Windows system.  Chilkat uses the Microsoft CNG (Cryptographic Next Generation) to do the signing.  If the CNS smartcard certificate is installed on Windows correctly, then CNG should automatically know to use the smartcard …

MS CNG NCryptSignHash returns 0x80090020

We’ve seen this error when trying to sign using a smart card: msCngSignWithCert Acquired CNG private key. dwKeySpec: 0xffffffff key is CERT_NCRYPT_KEY_SPEC setSmartCardPin: setting smart card pin… –setSmartCardPin Using PKCS1 padding. msCngSign.NCryptSignHash failed. failed to sign. secStatus: 0x80090020 –msCngSignWithCert The 0x80090020 error is a generic “NTE_FAILED: An internal error occurred”. …