Add BackendCapabilities and a KmsBackend::capabilities() method with a
conservative default so callers can discover which lifecycle operations
the active backend supports instead of probing them. Each backend
declares its real matrix (Vault Transit is the only one advertising
version-retaining rotation). Introduce the typed
KmsError::UnsupportedCapability variant for later use by lifecycle
endpoints.
Refs rustfs/backlog#1571 (part of rustfs/backlog#1562)
Contract-only module for KMS backup/restore (no handler or backend
wiring): versioned manifest schema with completeness marker and sealed
digest, the (backend, at-rest protection) responsibility matrix, typed
fail-closed errors, and the zero-write restore dry-run report. Fields
whose shape depends on in-flight contracts are reserved and reject data
in format version 1.
* fix(kms): restore vault backend test compilation after timeout parameter
PR #5472 added an attempt_timeout parameter to VaultKmsClient::new while
PR #5474 landed tests still using the one-argument form, leaving
'cargo test -p rustfs-kms' unable to compile on main. Pass the same
30-second timeout the surrounding integration tests already use.
* feat(kms): add master key version to data key envelope contract
DataKeyEnvelope gains an optional master_key_version field recording
which KEK version wrapped the DEK, so rotation-aware backends can load
the matching historical material on decrypt. The field is skipped when
None, keeping envelopes from non-rotating backends byte-identical to
the historical seven-field JSON shape, and legacy envelopes without the
field deserialize to None. The envelope discriminator marker is
untouched, so mixed-format routing is unchanged in both directions.
Adds the KeyVersionNotFound typed error for version-addressed material
lookups that must fail closed instead of falling back to the current
version.
Refs rustfs/backlog#1565
* feat(kms): implement key management service with local and vault backends
Signed-off-by: junxiang Mu <1948535941@qq.com>
* feat(kms): enhance security with zeroize for sensitive data and improve key management
Signed-off-by: junxiang Mu <1948535941@qq.com>
* remove Hashi word
Signed-off-by: junxiang Mu <1948535941@qq.com>
* refactor: remove unused request structs from kms handlers
Signed-off-by: junxiang Mu <1948535941@qq.com>
---------
Signed-off-by: junxiang Mu <1948535941@qq.com>