HP OpenVMS Systems Documentation

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HP Open Source Security for OpenVMS Volume 1: Common Data Security Architecture > CDSA API Functions

UnwrapKeyP

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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