| Message | The private key attestation challenge cannot be validated because the encryption certificate has expired, or the certificate or key is unavailable. |
|---|---|
| Declared in | winerror.h |
| Flags | Severity | Failure |
|---|---|---|
| Reserved (R) | false | |
| Origin | Microsoft | |
| NTSTATUS | false | |
| Reserved (X) | false | |
| Facility | Code | 9 (0x009) |
| Name | FACILITY_SSPI[2][1] | |
| Description | The source of the error code is the Security API layer.[2][1] | |
| Error Code | 18460 (0x481c) | |
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