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TPM_20_E_PRIVATE
Where the failure is raised
TPM_20_E_PRIVATE (0x8028010B) belongs to TPM 2.0 object processing. This result means the TPM 2.0 private or sensitive portion fails the consistency checks required for the object and its parent.
The first producer to identify is the TPM 2.0 command parser and object-consistency checks. TPM 2.0 separates an object public area from protected private material and validates their algorithms, parent binding and integrity when commands load or use the object. Similar display properties do not make two blobs interchangeable.
Evidence that changes the diagnosis
Preserve these items before changing anything:
- This result and
0x8028010B, the exact returning method or command, and the first nested status. - TPM2B_PRIVATE bytes, parent name and seed relationship, object public area, integrity and encrypted-sensitive fields, import/load command, and blob origin.
- Record the TPM generation, manufacturer/firmware revision, Windows build, caller identity, and TBS/provider state.
- The complete opaque request artifacts, redacting authorization secrets but not rewriting structure boundaries.
A controlled verification
Run this focused check: create and load one fresh object under the same parent without storage or transport conversion. Do not combine the test with firmware updates, TPM clearing, account changes, key recreation and policy edits in the same trial; such a result cannot isolate this boundary.
| Stage | Pass condition |
|---|---|
| the TPM 2.0 private or sensitive portion fails the consistency checks required for the object and its parent | The original command reaches the next defined state without returning it. |
| Security behavior | Verification still uses the intended TPM, authorization, locality and policy. |
| Output integrity | The object, digest, event log or state transition produced after it validates independently. |
Related TPM and TBS results
| Related result | Separate meaning |
|---|---|
TPM_E_ASYMMETRIC | TPM2.0 Asymmetric algorithm not supported or not correct. |
TPM_E_ERROR_MASK | This is an error mask to convert TPM hardware errors to win errors. |
TPM_E_FAIL | The operation failed. |
The practical distinction is that TPM_E_ASYMMETRIC rejects an algorithm choice, whereas this response identifies the private object material.
Correction and proof
The supported direction is to restore the exact public/private pair and correct parent binding or import construction; private blobs are opaque and TPM-bound. Do not pair a private blob with a public area or parent from another creation attempt. TPM 2.0 object material is cryptographically bound even when the algorithms and display names match.
Technical references
- TCG: TPM 2.0 Library Specification — source for this result.
- TCG: TPM 2.0 Part 2 — Structures and response codes — source for this result.
- TCG: TPM 2.0 Part 3 — Commands — source for this result.
- Microsoft: TPM recommendations — source for this result.
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