---
name: "Tspi_TPM_CheckMaintenancePubKey"
section: "3"
platform: "linux"
package: "libtspi-dev"
version: "0.3.15-0.4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Tspi_TPM_CheckMaintenancePubKey"
---

# Tspi\_TPM\_CheckMaintenancePubKey(3)

TCG Software Stack Developer's Reference

## NAME

Tspi\_TPM\_CheckMaintenancePubKey- check the public maintenance key

## SYNOPSIS

**#include \<tss/platform.h\>**
 **#include \<tss/tcpa\_defines.h\>**
 **#include \<tss/tcpa\_typedef.h\>**
 **#include \<tss/tcpa\_struct.h\>**
 **#include \<tss/tss\_typedef.h\>**
 **#include \<tss/tss\_structs.h\>**
 **#include \<tss/tspi.h\>**
 **TSS\_RESULT Tspi\_TPM\_CheckMaintenancePubKey(TSS\_HTPM**        *hTPM***, TSS\_HKEY** *hMaintenanceKey***,**
                                            **TSS\_VALIDATION\*** *pValidationData***);**

## DESCRIPTION

**Tspi\_TPM\_CheckMaintenancePubKey**
 checks the public maintenance key. If *hMaintenanceKey*
 is NULL, then *pValidationData* must not be NULL; the caller has to
 proof the digest on its own. If *hMaintenanceKey* is not NULL, then
 *pValidationData* must be NULL; the TSS service provider proofs the
 digest got internally from the TPM. The key information required for
 proofing the public maintenance key must be set in the key object by
 Tspi\_SetAttribData before this method is called. **This function is**
 **not yet implemented**.

## PARAMETERS

### hTPM

Handle of the TPM object

### hMaintenanceKey

Handle of the maintenance key object

### pValidationData

Validation data structure.
 \[IN\] Provide externalData information required to compute the signature.
 \[OUT\] On successful completion of the ocmmand, the structure provides a
 buffer containing the validation data and a buffer containing the data
 the validation data was computed from.

## RETURN CODES

**Tspi\_TPM\_CheckMaintenancePubKey** returns TSS\_SUCCESS on success,
 otherwise one of the following values are returned:
 TSS\_E\_INVALID\_HANDLE
 *hTPM* is not a valid handle.
 TSS\_E\_INTERNAL\_ERROR
 An internal SW error has been detected.
 TSS\_E\_BAD\_PARAMETER
 One or more of the parameters is incorrect.
 TSS\_E\_NOTIMPL
 The command is not implemented.

## CONFORMING TO

**Tspi\_TPM\_CheckMaintenancePubKey** conforms to the Trusted Computing
 Group Software Specification version 1.1 Golden

## SEE ALSO

[**Tspi\_TPM\_LoadMaintenancePubKey**(3)](/Tspi_TPM_LoadMaintenancePubKey/3.md),
 [**Tspi\_TPM\_CreateMaintenanceArchive**(3)](/Tspi_TPM_CreateMaintenanceArchive/3.md),
 [**Tspi\_TPM\_KillMaintenanceFeature**(3)](/Tspi_TPM_KillMaintenanceFeature/3.md).