NTSTATUS 0xC0292009 (STATUS_PCP_AUTHENTICATION

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Description:

the TPM ignored authorization attempts to mitigate a dictionary attack.

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STATUS_PCP_AUTHENTICATION_FAILED	STATUS_PCP_POLICY_NOT_FOUND

STATUS_PCP_AUTHENTICATION_IGNORED

Anti-hammering protection is suppressing authorization attempts

STATUS_PCP_AUTHENTICATION_IGNORED is not merely another bad-password result. PCP reports that the platform crypto device deliberately ignored authorization for the provider object as a dictionary-attack mitigation. The device can decline to evaluate additional attempts even when an application keeps submitting them.

This must be handled as a security state. Retrying in a tight loop, prompting repeatedly for the same secret, or moving the workflow between services can extend the incident and obscure the original authorization failure. A successful authorization for a different object is not a reliable way to reset the protection.

What to check

Stop automatic retries and record the number and timing of preceding authorization failures.
Use the platform's documented administrative recovery or cooldown process; do not attempt to bypass anti-hammering by recreating or clearing security material without understanding the impact.
Review the user interaction and credential-validation path that supplied the authorization value.

References

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