| Previous | Next |
| STATUS_PCP_INVALID_HANDLE | STATUS_PCP_FLAG_NOT_SUPPORTED |
STATUS_PCP_INVALID_PARAMETER
Invalid Platform Crypto Provider parameter
STATUS_PCP_INVALID_PARAMETER means the CNG Platform Crypto Provider received an argument that does not fit the requested TPM-backed operation. The same algorithm or property may be valid for another provider but invalid for this TPM provider or device.
Useful diagnosis is parameter-specific: algorithm group, key length, padding mode, property buffer, parent key, usage flags, and whether a persisted TPM key or an ephemeral operation is being addressed.
Diagnostic focus
- Log the NCrypt function name, provider name, property name, flags, buffer length, and algorithm identifier.
- Compare the requested algorithm and key size with what the Platform Crypto Provider exposes on that Windows/TPM combination.
- Do not assume software-KSP success proves the TPM provider should accept the same property set.
References
- Microsoft: CNG key storage providers
- Microsoft: NCryptOpenStorageProvider
- Microsoft: Key storage and retrieval
- Microsoft: TPM Base Services
- Microsoft: COM error codes for TPM, PLA and FVE
Looking for a different code? Search another status or error code.