What does HRESULT 0x80280097 (TPM_20_E_TAG) mean?

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A TPM 2.0 structure tag does not identify the required representation.

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TPM_20_E_SYMMETRIC	TPM_20_E_SELECTOR

TPM_20_E_TAG

TPM_20_E_TAG maps to TPM_RC_TAG. A tag field is used by TPM data structures and command framing to identify the representation that follows. This status means the encoded tag is not one the receiving structure accepts; it is not a generic failure to parse all data.

What to inspect

Decode the field as the exact TPMI_ST_* or TPM_ST_* type required at that position.
For command framing, verify whether the command permits sessions and therefore requires the corresponding command tag.
Do not substitute a tag without also rebuilding the payload that the tag describes.

TCG TPM 2.0 Part 2: structure tags and TPM_RC_TAG · TCG TPM 2.0 Part 3: command and response headers

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