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TPM_E_DAA_RESOURCES
Meaning beyond the built-in message
TPM_E_DAA_RESOURCES (0x80280050) belongs to TPM 1.2 Direct Anonymous Attestation. The base What Is page already shows the short Windows message; the additional diagnostic value is that this result marks the TPM 1.2 Direct Anonymous Attestation state machine lacks the internal resources needed for the requested stage.
The first producer to identify for this HRESULT is the staged DAA enrollment or signing state machine. Direct Anonymous Attestation in TPM 1.2 is a multi-stage protocol. Each stage consumes issuer data, TPM-specific state and outputs from earlier stages, so the first inconsistent transcript element is more useful than the final generic application failure.
Decode the relevant state
| Question | Evidence for this HRESULT |
|---|---|
| What exact state was rejected? | the TPM 1.2 Direct Anonymous Attestation state machine lacks the internal resources needed for the requested stage |
| Which layer owns the result? | The staged DAA enrollment or signing state machine. |
| What must be correlated? | DAA stage, active DAA sessions, TPM context/resource pressure, issuer session state, and any prior abandoned DAA command |
| What is the controlled comparison? | complete or flush other DAA work and run one fresh enrollment or signing flow without interleaving sessions |
Record the original command or API call before this result retry logic mutates its nonces, handles, buffers or state. Also retain the full HRESULT as 0x80280050; signed decimal logging can hide the result TPM/TBS facility and make searches less precise.
One-variable test
- Establish the result baseline with the same device, Windows build, account and TPM generation.
- Perform one narrow experiment: complete or flush other DAA work and run one fresh enrollment or signing flow without interleaving sessions.
- Compare raw this result inputs and the first response, not only the final application dialog.
- Stop after the first changed the checkpoint; a later error means this boundary was passed even if the whole workflow still fails.
Differential diagnosis
| Result | Different diagnostic question |
|---|---|
TPM_E_DAA_INPUT_DATA0 | The consistency check on DAA parameter inputData0 has failed — a separate checkpoint when compared with this result. |
TPM_E_DAA_INPUT_DATA1 | The consistency check on DAA parameter inputData1 has failed — a separate checkpoint when compared with it. |
TPM_E_DAA_ISSUER_SETTINGS | The consistency check on DAA_issuerSettings has failed — a separate checkpoint when compared with it. |
The decisive distinction for this HRESULT is that TPM_E_DAA_STAGE means the submitted stage is unexpected even when resources are available. The short platform wording — “The DAA command has no resources availble to execute the command.” — does not supply that differential diagnosis by itself.
Supported corrective direction
The corrective direction is to serialize DAA flows, close abandoned state, and restart the protocol from its defined beginning. Do not mix values from separate DAA attempts. The protocol is staged and transcript-bound; substituting one issuer value or nonce can make every later stage misleading.
A verified it repair reproduces the original request with the same intended security policy and passes this checkpoint. Replacing it with a broader wrapper status, silently falling back to software keys, or suppressing verification is not proof of success.
Technical references
- TCG: TPM 1.2 Main Specification — source for the checkpoint.
- TCG: TPM 1.2 Part 2 — DAA structures — source for the checkpoint.
- TCG: TPM 1.2 Part 3 — DAA commands — source for the checkpoint.
- Microsoft: TPM technology overview — source for the checkpoint.
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