SignDataUpdate(3)SignDataUpdate(3)NAME
SignDataUpdate, CSSM_SignDataUpdate, CSP_SignDataUpdate - Continue the
staged signing process input buffer data (CDSA)
SYNOPSIS
# include <cdsa/cssm.h>
API: CSSM_RETURN CSSMAPI CSSM_SignDataUpdate (CSSM_CC_HANDLE CCHandle,
const CSSM_DATA *DataBufs, uint32 DataBufCount) SPI: CSSM_RETURN CSSMC‐
SPI CSP_SignDataUpdate (CSSM_CSP_HANDLE CSPHandle, CSSM_CC_HANDLE CCHa‐
ndle, const CSSM_DATA *DataBufs, uint32 DataBufCount)
LIBRARY
Common Security Services Manager library (libcssm.so)
API PARAMETERS
The handle that describes the context of this cryptographic operation
used to link to the CSP-managed information. A pointer to a vector of
CSSM_DATA structures that contain the data to be operated on. The num‐
ber of DataBufs to be signed.
SPI PARAMETERS
The handle that describes the add-in cryptographic service provider
module used to perform calls to CSSM for the memory functions managed
by CSSM.
DESCRIPTION
This function continues the staged signing process over all data con‐
tained in the set of input buffers. Signing is performed using the pri‐
vate key specified in the context.
RETURN VALUE
A CSSM_RETURN value indicating success or specifying a particular error
condition. The value CSSM_OK indicates success. All other values repre‐
sent an error condition.
SEE ALSO
Books
Intel CDSA Application Developer's Guide (see CDSA_intro(3))
Reference Pages
Functions for the CSSM API:
CSSM_SignData(3), CSSM_SignDataInit(3), CSSM_SignDataFinal(3)
Functions for the CSP SPI:
Funcitons: CSP_SignData(3), CSP_SignDataInit(3), CSP_SignDataFinal(3)SignDataUpdate(3)