---
name: "Tspi_Key_ConvertMigrationBlob"
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_Key_ConvertMigrationBlob"
---

# Tspi\_Key\_ConvertMigrationBlob(3)

create a wrapped key from a migration blob

TCG Software Stack Developer's Reference

## NAME

Tspi\_Key\_ConvertMigrationBlob - create a wrapped key from a migration blob

## 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_Key_ConvertMigrationBlob(TSS_HKEY hKeyToMigrate,         TSS_HKEY hParentKey,
                                         UINT32   ulRandomLength,        BYTE*    rgbRandom,
                                         UINT32   ulMigrationBlobLength, BYTE*    rgbMigrationBlob);
```

## DESCRIPTION

**Tspi\_Key\_ConvertMigrationBlob** takes the migration blob built by **Tspi\_Key\_CreateMigrationBlob** using the migration scheme TSS\_MS\_MIGRATE and creates a normal wrapped key. The resulting normal wrapped key blob is stored in the instance associated with hKeyToMigrate and may be retrieved from that instance by **Tspi\_GetAttribData**.

## PARAMETERS

### hKeyToMigrate

The handle of the key object to convert.

### hParentKey

Handle to the parent key related to the key addressed by *hKeyToMigrate*.

### ulRandomLength

Length of random data provided at the parameter *rgbRandom*.

### rgbRandom

Random data as returned together with the migration blob by the method **Tspi\_Key\_CreateMigrationBlob**.

### ulMigrationBlobLength

Length of the migration blob data provided at the parameter *rgbMigrationBlob*.

### rgbMigrationBlob

Migration blob data as returned by a previously called method **Tspi\_Key\_CreateMigrationBlob**.

## RETURN CODES

**Tspi\_Key\_ConvertMigrationBlob** returns TSS\_SUCCESS on success, otherwise one of the following values is returned:

- TSS\_E\_INVALID\_HANDLE

  *hKeyToMigrate* or *hParentKey* is not a valid handle.

- TSS\_E\_INTERNAL\_ERROR

  An internal SW error has been detected.

- TSS\_E\_BAD\_PARAMETER

  One or more parameters is bad.

## CONFORMING TO

**Tspi\_Key\_ConvertMigrationBlob** conforms to the Trusted Computing Group Software Specification version 1.1 Golden

## SEE ALSO

[**Tspi\_Key\_LoadKey**(3)](/Tspi_Key_LoadKey/3.md), [**Tspi\_Key\_UnloadKey**(3)](/Tspi_Key_UnloadKey/3.md), [**Tspi\_Key\_CertifyKey**(3)](/Tspi_Key_CertifyKey/3.md), [**Tspi\_Key\_CreateMigrationBlob**(3)](/Tspi_Key_CreateMigrationBlob/3.md).