C_DigestKey

This function operates as specified in PKCS#11, although it may be used on any PKCS#11 object. 

If the CKF_LOGIN_REQUIRED flag is set for the Token associated with the provided session the session state must be either CKS_RW_USER_FUNCTIONS or CKS_RO_USER_FUNCTIONS,otherwise the error result CKR_USER_NOT_LOGGED_IN is returned.

Synopsis

C_DigestKey(
        CK_SESSION_HANDLE hSession,
        CK_OBJECT_HANDLE hKey
);