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TPM_E_BUFFER_LENGTH_MISMATCH
TPM_E_BUFFER_LENGTH_MISMATCH means related input buffers have inconsistent lengths. It is usually a caller-side packing or serialization error.
What to check for TPM_E_BUFFER_LENGTH_MISMATCH
- Verify every length field against the actual byte count of its corresponding buffer.
- Check structure packing, Unicode/ANSI conversion, and any serialization boundary between managed and native code.
- Do not send partially initialized structures to the provider; validate them before the CNG call.
Microsoft: CNG key storage providers
Microsoft: TPM and PCP error codes
Diagnostic discriminator: Compare the lengths of all related buffers and serialized fields supplied for the TPM operation. This result identifies inconsistent caller-side lengths rather than a TPM authorization failure.
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