NAME
SignDataFinal,
CSSM_SignDataFinal,
CSP_SignDataFinal - Complete the final stage of the sign data (CDSA)
SYNOPSIS
# include <cssm.h>
API:
CSSM_RETURN CSSMAPI CSSM_SignDataFinal
(CSSM_CC_HANDLE CCHandle,
CSSM_DATA_PTR Signature)
SPI:
CSSM_RETURN CSSMCSPI CSP_SignDataFinal
(CSSM_CSP_HANDLE CSPHandle,
CSSM_CC_HANDLE CCHandle,
CSSM_DATA_PTR Signature)
LIBRARY
Common Security Services Manager library (CDSA$INCSSM300_SHR.EXE)
API PARAMETERS
CCHandle (input)
The handle that describes the context of this cryptographic
operation used to link to the CSP-managed information.
Signature (output)
A pointer to the CSSM_DATA structure for the signature.
SPI PARAMETERS
CSPHandle (input)
The handle that describes the add-in cryptographic service
provider module used to perform up calls to CSSM for the
memory functions managed by CSSM.
DESCRIPTION
This function completes the final stage of the sign data function.
NOTES ON API
The output is returned to the caller either by filling the caller-
specified buffer or by using the application's declared memory
allocation functions to allocate buffer space. To specify a specific,
preallocated output buffer, the caller must provide an array of one
or more CSSM_DATA structures, each containing a Length field value
greater than zero and a non-NULL data pointer field value. To
specify automatic output buffer allocation by the CSP, the caller
must provide an array of one or more CSSM_DATA structures, each
containing a Length field value equal to zero and a NULL data
pointer field value. The application is always responsible for
deallocating the memory when it is no longer needed.
NOTES ON SPI
The output is returned to the caller as specifed in Buffer Management
for Cryptographic Services.
RETURN VALUE
A CSSM_RETURN value indicating success or specifying a particular
error condition. The value CSSM_OK indicates success. All other
values represent an error condition.
ERRORS
Errors are described in the CDSA technical standard. See CDSA.
CSSMERR_CSP_OUTPUT_LENGTH_ERROR
SEE ALSO
Books
Intel CDSA Application Developer's Guide (see CDSA)
Other Help Topics
Functions for the CSSM API:
CSSM_SignData
CSSM_SignDataInit
CSSM_SignDataUpdate
Functions for the CSP SPI:
CSP_SignData
CSP_SignDataInit
CSP_SignDataUpdate