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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
- Microsoft: PCP and TPM error codes
- Microsoft: TPM fundamentals
- Trusted Computing Group: TPM 2.0 Library Specification
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