| Previous | Next |
| TPM_E_INAPPROPRIATE_SIG | TPM_E_BAD_MIGRATION |
TPM_E_BAD_KEY_PROPERTY
The requested key template has an unsupported property combination
TPM_E_BAD_KEY_PROPERTY (0x80280028) means key creation/loading validation rejected the template itself. Individual fields can look valid while their combination is prohibited by the TPM 1.2 implementation or key type.
Evidence to capture
Capture algorithm ID, key size, usage, auth/migratable flags, exponent/parameters, scheme, and the exact key-template blob. Compare with a known-good template for the same intended role.
Focused correction
Construct a key template using a supported property combination for the target TPM and purpose. Keep the intended cryptographic role fixed while changing only the invalid template fields.
Technical references
Looking for a different code? Search another status or error code.