The concept of a "key bundle" would introduce a lot of complexity while
providing little to no gain.
Some context:
```
Originally, "key bundles" were meant to be the answer to the question
"which keystore should insert place keys in?":
36606a66dd/crates/tor-keymgr/src/mgr.rs (L60-69)
However, I'm not so sure anymore that "key bundles" are the answer. I
don't think there is any way we can "guess" where a key should go. When
inserting/generating a new key, we should either:
always write to the same, primary key store, OR require the user to be
explicit about which key store the new key should go in (by assigning an
ID to each key store and expecting the user to provide it when
inserting/generating new keys)
I prefer the latter option, because it provides more flexibility, which
we're going to need when implementing the key management CLI (which I
think should allow users to generate keys anywhere they want, e.g. arti
keymgr generate <key type> --keystore hsm ...)
```
For more details, see the discussion on #903.
Closes#903
The caller uses `KeystoreSelector` to specify which keystore to insert
the new key into (only `KeystoreSelector::Id` and
`KeystoreSelector::Default` are supported for `insert`).
The ability to insert keys in a particular keystore will come in handy
when we implement the key management CLI (the CLI will have an option
for specifying the keystore to access/modify).
This error will be returned by `KeyMgr` if the caller tries to access a
keystore that does not exist, or if the requested `KeystoreSelector`
cannot be applied.
This will enable the `KeyMgr` to look up `Keystore`s by ID (which is
a requirement for disambiguating the semantics of `insert`, which
currently tries to "guess" which keystore it should be using).
Hiding the underlying value of `enabled` enables us to give it a
different `auto` value depending on whether the `keymgr` feature is
enabled or not (it defaults to `true` if `keymgr` is enabled, and
`false` otherwise).
The `experimental-api` was only meant to apply to the use of the
unstable `ArtiNativeKeystoreConfig` in the Arti config.
`experimental-api` was _not_ supposed to be used for enabling/disabling
the keystore (that's what the `enabled` flag is for).
This would be a break in higher-layer crates which incorproate this
error but:
1. That's just arti-client which hides it behind the detailed errors
cargo feature
2. I'm hoping cargo-semver-checks would spot it, anyway.
The effect is that everywhere a RetryError is used, the error sources
for the contained errors will be Display'd.
In tor-hsclient we no longer need to explicitly wrap things up in
tor_error::Report.
Ian Jackson
Ian Jackson
Nick Mathewson
Gabriela Moldovan
juga