Function : Security
NSFNoteSignExt3 - Sign all or specific items in a note and append a signature item to the note.
#include <nsfnote.h> STATUS LNPUBLIC NSFNoteSignExt3( NOTEHANDLE hNote, KFHANDLE hKFC, const char far *SignatureItemName, WORD ItemCount, DHANDLE hItemIDs, DWORD Flags, DWORD Reserved, void *pReserved);
This function works just like NSFNoteSignExt - it allows you to sign just the fields that reside in a section of a document, and to give the signature item the appropriate name. In addition, this function allows you to pass a flag to determine how MIME parts will be signed. This function requires you to specify a handle to a specific ID file.
NSFNoteSignExt3 generates a signature item with the specified name and appends this signature item to the note. A signature item has data type TYPE_SIGNATURE and item flags ITEM_SEAL. The data value of the signature item is a digest of the data stored in items in the note, signed with the user's private key.
To sign all the fields that reside in one section of a note, you need the name
of the section and the BLOCKIDs of all the items in the section. Format a
signature item name as a zero-terminated ASCI string of the form
create a digital signature from the specified items and append this digital signature item to the note.
If the note has MIME parts then it will be SMIME signed. If not, or the Flags parameter is set to allow Notes signature on MIME parts, then it will be Notes signed.
If the document to be signed is encrypted, this function will attempt to decrypt the document in order to generate a valid signature. If you want the document to be signed and encrypted, you must sign the document before using NSFNoteCopyAndEncrypt.
Note: When the Notes user interface opens a note, it always uses the OPEN_EXPAND option to promote items of type number to number list, and items of type text to text list. In order for a signature created or verified through this API call to work correctly with the Notes user interface, the OPEN_EXPAND option must be used when the note is opened.
Parameters : Input : hNote - Handle to an open note that is to be signed.
hKFC - Handle to an ID file. Pass NULL for current user's ID.
SignatureItemName - A zero-terminated LMBCS string specifying the name of the signature item to append. Specify NULL to append a signature item with the name $Signature (ITEM_NAME_NOTE_SIGNATURE). To sign a section, specify a name with the format $Sig_
ItemCount - The number of BLOCKIDs in the array specified by hItemIDs. Specify MAXWORD to sign all the signable items in the note.
hItemIDs - Handle to memory block containing an array of item BLOCKIDs. To sign a section, the array must contain the item BLOCKIDs of all items in the section. To sign the entire document, specify NULLHANDLE .
Flags - If 0, and the note has MIME parts, then it will be SMIME signed. If not or the Flags parameter is set to allow Notes signature on MIME parts then it will be Notes signed. See SIGN_NOTES_IF_MIME_PRESENT.
Reserved - Reserved, should be 0.
pReserved - Reserved, should be NULL.
Output : (routine) - Return status from this call -- indicates either success or what the error is. The return codes include:
NOERROR - The note was successfully signed. ERR_xxx - STATUS returned from a lower level Notes function. This value can be passed to OSLoadString to obtain a text string that can be presented in a dialog box or log entry.