NAME
UnwrapKeyP — Unwrap the wrapped keys with privilege (CDSA)
SYNOPSIS
# include <cssm.h>
CSSM_RETURN CSSMAPI CSSM_UnwrapKeyP
(CSSM_CC_HANDLE CCHandle,
const CSSM_KEY *PublicKey,
const CSSM_WRAP_KEY *WrappedKey,
uint32 KeyUsage,
uint32 KeyAttr,
const CSSM_DATA *KeyLabel,
const CSSM_RESOURCE_CONTROL_CONTEXT *CredAndAclEntry,
CSSM_KEY_PTR UnwrappedKey,
CSSM_DATA_PTR DescriptiveData,
CSSM_PRIVILEGE Privilege) |
LIBRARY
Common Security Services Manager library (cdsa$incssm300_shr.exe)
PARAMETERS
| Privilege (input) |
| | | The privilege to be applied during the cryptographic
operation. |
See CSSM_UnwrapKey.
DESCRIPTION
This function is similar to CSSM_UnwrapKey(). It also accepts a USEE tag as a privilege request parameter. CSSM
checks that either its own privilege set or the Application's privilege
set (if the Application is signed) includes the tag. If the tag
is found and the service provider privilege set indicates that it
is supported, the tag is forwarded to the service provider.
NOTES
The KeyData field of the CSSM_KEY structure
is allocated by the CSP. The application is required to free this memory
using the CSSM_FreeKey() function or with the memory functions registered for
the CSPHandle.
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.
CSSMERR_CSP_KEY_LABEL_ALREADY_EXISTS
CSSMERR_CSP_PUBLIC_KEY_INCONSISTENT
CSSMERR_CSP_PRIVATE_KEY_ALREADY_EXIST |
SEE ALSO
Books
Intel CDSA Application Developer's Guide
