UnwrapKeyP(3)UnwrapKeyP(3)NAMEUnwrapKeyP - Unwrap the wrapped keys with privilege (CDSA)
SYNOPSIS
# include <cdsa/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_CON‐
TROL_CONTEXT *CredAndAclEntry, CSSM_KEY_PTR UnwrappedKey, CSSM_DATA_PTR
DescriptiveData, CSSM_PRIVILEGE Privilege)
LIBRARY
Common Security Services Manager library (libcssm.so)
PARAMETERS
The privilege to be applied during the cryptographic operation.
See CSSM_UnwrapKey(3).
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 repre‐
sent an error condition.
ERRORS
Errors are described in the CDSA technical standard. See
CDSA_intro(3). CSSMERR_CSP_KEY_LABEL_ALREADY_EXISTS CSSMERR_CSP_PUB‐
LIC_KEY_INCONSISTENT CSSMERR_CSP_PRIVATE_KEY_ALREADY_EXIST
SEE ALSO
Books
Intel CDSA Application Developer's Guide (see CDSA_intro(3))
Reference Pages
UnwrapKeyP(3)
