---
name: "Tspi_Context_GetRegisteredKeysByUUID2"
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_Context_GetRegisteredKeysByUUID2"
---

# Tspi\_Context\_GetRegisteredKeysByUUID2(3)

get an array of TSS\_KM\_KEYINFO2 structures based on the state of persistent storage.

## NAME

Tspi\_Context\_GetRegisteredKeysByUUID2 - get an array of TSS\_KM\_KEYINFO2 structures based on the state of persistent storage.

## 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_Context_GetRegisteredKeysByUUID2(TSS_HCONTEXT     hContext,  TSS_FLAG persistentStorageType,
                                                TSS_UUID*        pUuidData, UINT32*  pulKeyHierarchySize,
                                                TSS_KM_KEYINFO2** ppKeyHierarchy);
```

## DESCRIPTION

**TSS\_Context\_GetRegisteredKeysByUUID2**  gets an array of TSS\_KM\_KEYINFO2 structures. This information reflects the state of the registered key hierarchy. The keys stored in the persistent storage are totallly independent from either the context provided in the function call or the context, which was provided while processing the key registration.

## PARAMETERS

### hContext

The handle of the context object.

### persistentStorageType

Flag indicating the persistent storage the key is registered in.

### pUuidData

The UUID the key was registered in the persistent storage (TSP or connected TCS). If no key UUID is provided, thus KeyUUID is NULL, the returned array of the TSS\_KM\_KEYINFO2 structure contains data reflecting the whole key hierarchy starting with root key. If a certain key is UUID is provided, the returned array of TSS\_KM\_KEYINFO2 structures only contains data reflecting the path of the key hierarchy regarding that key. The first array entry is the key addressed by the given UUID followed by its parent key up to the root key.

### pulKeyHierarchySize

Recieves the length (number of array entries) of the ppKeyHierarchy parameter.

### ppKeyHierarchy

On successful completion of the command, this parameter points to a buffer containing the actual key hierarchy data.

## RETURN CODES

**Tspi\_Context\_GetRegisteredKeysByUUID2** returns TSS\_SUCCESS on success, otherwise one of the following values are returned:

- TSS\_E\_INVALID\_HANDLE - *hContext* is an invalid handle.

  - TSS\_E\_BAD\_PARAMETER

  - TSS\_E\_INTERNAL\_ERROR

  An error occurred internal to the TSS.

## CONFORMING TO

**Tspi\_Context\_GetRegisteredKeysByUUID2** conforms to the Trusted Computing Group Software Specification version 1.2

## SEE ALSO

[**Tspi\_Context\_LoadKeyByUUID**(3)](/Tspi_Context_LoadKeyByUUID/3.md).