Public Access
Add the server client and client-side enrollment
A typed client over DodoSSH.Contracts, and the orchestration that turns a passphrase into an enrolled identity: generate keys, have the identity provider sign over them, wrap the bundle three ways, create the personal vault, publish. Ordering here is forced, not chosen. The secret bundle's AAD binds to the server-assigned user id, so /me has to be read before anything can be wrapped -- which is exactly why /me provisions the account and returns its id even while reporting that enrollment is required. That constraint was designed into the server earlier; this is the first code that depends on it. The grant tuple now has a real canonical encoding (crypto.md 7.3) rather than the placeholder signature I would otherwise have had to invent and then keep. §7 named the tuple without specifying how to encode it; this fills that in with the same conventions as 7.1, and the self-grant at enrollment is already in its final format. The signature covers SHA-256(wrappedKey) rather than the key, so a verifier can check attribution without holding the vault key at all. The most valuable tests are the negative ones about the request body: the server is meant to be unable to read what it stores, and a refactor that put a passphrase or a private key into the enrollment request would be invisible to every other test in the repository. So one asserts the body contains neither the passphrase, the recovery code, nor any private key in base64 or hex. Another opens the same bundle three ways -- passphrase, recovery code and device key -- which is what makes a passphrase change a one-row update. ClientEnrollment depends on IKeyBindingAuthorizer rather than the whole OidcClient. It needs exactly one capability, and depending on the full client would drag discovery and token exchange into every test of key binding. Two things fixed while building it. The recovery code buffer was sized one separator short, so every enrollment threw IndexOutOfRange -- caught immediately because nine of ten tests failed identically. And the crypto enum collided with Domain.GrantKind in the server, so it is GrantPurpose there; the numeric values still have to match, which the doc and a test both say. 448 tests pass, zero warnings on a clean rebuild, format clean.
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