logicsrc/docs/opencreds/item-model.md
Anthony Ettinger 80a36269bb
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Add the LogicSRC OpenCreds specification (#140)
* Add the LogicSRC OpenCreds specification

Leaving a password manager means writing every secret you own to disk in
the clear, and losing whatever the spreadsheet had no column for. A CSV
is plaintext by construction, lossy by omission, and carries no
integrity: nothing in it says which rows were meant to be there, so a
truncated import looks exactly like a complete one.

The same gap showed up inside LogicSRC. `logicsrc credentials` moves
.env secrets and SSH keys through end-to-end-encrypted team vaults, but
it can only model a key/value pair. A card, a passport, a login with a
TOTP seed, or an OAuth account with a refresh token are all things
people already keep in a vault, and none of them are a key/value pair.

OpenCreds defines three things: the item, the vault, and the database.

- Six item types (login, card, identity, note, key, account) as one
  record with a type and a named field group, so everything the user
  typed lives in a single encrypted blob. Codes 1-4 match MarkSyncr's
  deployed vault and are not renumbered; compatibility is cheaper than
  elegance.
- AES-256-GCM over that record with the item id bound as AAD. Without
  it, anyone with storage write access could move a low-value login's
  ciphertext into a high-value row and watch what the user does next.
- A key hierarchy where the user key is random, not derived, so a
  password change re-wraps 32 bytes rather than re-encrypting a vault.
  The auth hash comes out of a different HKDF label than the wrap key,
  which is what lets it reach a server at all.
- A portable .opencreds file, encrypted by default, whose header is the
  AAD over the payload -- so the manifest is authenticated by the same
  tag as the data and a truncated import fails rather than reporting
  success. The plaintext form exists because people move to products
  that read nothing else; it is opt-in, confirmed, 0600, and labelled
  "protected": false in its own header.

Namespaces are carried as data, not fixed by the spec: labels are
compiled into every ciphertext a vault has written, so editing one does
not migrate a vault, it makes it undecryptable. MarkSyncr's deployed
vault is conformant by declaring `marksyncr`.

Ships: prd/0004, nine spec pages under docs/opencreds/, six JSON
Schemas, the @logicsrc/opencreds reference implementation with CSV
importers for five products, `logicsrc vault` and the standalone
`opencreds` binary, and the spec page at logicsrc.com/opencreds.

`vault` rather than `creds` because `creds` is already an alias of
`logicsrc credentials`, and the two are different: one moves a pair
between providers, the other stores a record.

@logicsrc/validators now registers every schema by $id before
compiling, so the database schema can $ref the item and manifest
schemas rather than restating them.

120 tests, including CLI end-to-end coverage of the masking rules,
exit codes, and the manifest-mismatch path.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QRQrfuwuYKKV5UB9kLHuX5

* Make the OpenCreds conformance claim executable

The conformance page described a fixture suite and an `opencreds
conformance` command that did not exist. A specification that documents
a conformance surface it cannot run is a specification nobody can hold
to, including us.

`opencreds conformance` now runs the requirement list as code -- one
check per C-number, carrying its own id and level -- and emits the
report shape the spec publishes. It exits 2 when a MUST does not pass,
so it can gate CI directly. The reference implementation reports 29
passed, 0 failed, 1 skipped; the skip is C19, because key management for
the team profile lives in @logicsrc/plugin-credential-sharing rather
than in this package, and a skipped MAY does not affect conformance.

Fixtures are generated (`--emit-fixtures <dir>`) rather than
hand-written. A vector produced by an implementation and then verified
by it is worth more than a JSON file someone typed: the typed file
drifts silently when the format moves, and the generated one cannot.
Fourteen files, including an invalid/ set every conforming reader must
reject -- a wrong field group, a weak KDF, an unregistered namespace, a
short payload and a tampered manifest.

The CLI requirements stay with the end-to-end tests that drive the real
binary through a child process; a command cannot meaningfully check its
own exit codes, and a masked value that is only masked in the library is
not masked.

conformance.md and cli.md now describe what ships.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QRQrfuwuYKKV5UB9kLHuX5

* Add @logicsrc/opencreds to the lockfile

`npm ci` refuses a lockfile that does not match package.json, and the
new workspace package plus the CLI's dependency on it were never
recorded: the worktree was bootstrapped by hardlinking node_modules
rather than installing, so npm was never asked to update the lock.

Adds the workspace link and the package entry. No dependency versions
move.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QRQrfuwuYKKV5UB9kLHuX5

* Register PRD 0004, and stop the fixtures looking like real secrets

Two CI failures, both mine.

`prd/README.md` is generated by `logicsrc prd index --write` and the
scaffold test asserts it is current, so adding a PRD without
regenerating it leaves the repo's own conformance check failing.
Regenerated. The MCP test asserts the next free PRD id against the live
prd/ directory — its comment says it advances with every PRD added — so
it moves to 0005.

ThreatCrush flagged three of the example strings: a PEM header in the
item-model docs and in the conformance fixture, and an `sk_live_`
prefixed token. All placeholders, none real, but the finding is the
scanner working. A fixture only has to exercise the field, and a
real-looking private key header or live-key prefix sitting in the tree
trains both the scanner and the people reading its output to shrug at
exactly the shape that matters. Replaced with obvious placeholders
rather than suppressing the rule.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QRQrfuwuYKKV5UB9kLHuX5

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-29 04:11:38 -07:00

6.8 KiB
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The OpenCreds item model

One record, six types, one field group each. This page specifies the groups field by field. The record shape around them is spec.md §3.

Every field in every group is a string unless stated otherwise, and every field is OPTIONAL with an empty string as its default. A vault holds half-filled records — someone knows the card number and not the issuing bank — and a model that requires fields produces importers that invent them.

login (code 1)

Field Type Notes
username string
password string
totp string An otpauth:// URI, or a bare base32 seed. Store the URI where you have it: it carries the algorithm, digits and period, and a bare seed loses them.
uris array Matching URIs, see below.
{ "uri": "https://github.com", "match": "domain" }

match MUST be one of domain, host, startsWith, exact, regex, or never. It is carried so that a move does not silently widen where a credential will be offered; an implementation that does not autofill still round-trips it.

login is the only type with history (spec.md §3.5).

card (code 2)

Field Notes
cardholderName
brand Visa, Mastercard, Amex, … Free text; issuers add brands.
number Full PAN.
expMonth 112, no leading zero required.
expYear Four digits. Two-digit years from an import are expanded to 20xx.
code CVV/CVC.

identity (code 3)

Field Notes
title Mr, Ms, Dr, …
firstName, middleName, lastName
username An identity's handle, distinct from a login's.
company
email, phone
address1, address2, address3
city, state, postalCode, country
ssn National identity number. Named ssn for import compatibility; it is not US-specific.
passportNumber
licenseNumber

note (code 4)

No field group. The content is the record's notes field. A note item that also carries custom fields is valid and common — it is how people store the things a vault has no type for.

key (code 5)

Introduced by OpenCreds. Covers SSH keys, PGP keys, API tokens, certificates, and the .env secrets that logicsrc credentials synchronizes.

Field Notes
keyType One of ssh, pgp, api, symmetric, certificate, env.
algorithm ed25519, rsa-4096, ecdsa-p256, …
publicKey Armoured/OpenSSH public key text.
privateKey Armoured/PEM private key text.
passphrase The private key's own passphrase, where it has one.
fingerprint SHA256:… — a public, non-secret identifier.
value The secret for key types that are one opaque string (api, env, symmetric).
path Where the key belongs on disk, e.g. ~/.ssh/id_ed25519.
mode POSIX mode as an octal string, e.g. "0600".
expiresAt RFC 3339, where the key expires.

path and mode exist so a restore is total: a private key written back with the wrong mode is a key ssh will refuse to use, and a key written to the wrong path is a key nothing finds. They carry the same information as the self-describing envelope the ssh credential provider already writes.

An .env secret becomes { "keyType": "env", "value": "…" } with the variable name as the item name. That is the bridge between the two specs: Credential Sharing moves a key/value pair between providers, OpenCreds is what it looks like when stored.

account (code 6)

Introduced by OpenCreds. A provider account and the tokens that authorize acting as it — a connected Google account, a social account, a service account.

Field Notes
provider google, github, x, stripe, … An OpenOntology entity id where one is in use.
accountId The provider's own id for the account.
handle The username or handle at that provider.
email
accessToken
refreshToken
tokenType bearer, …
scopes Array of strings.
expiresAt RFC 3339 expiry of accessToken.
environment production, sandbox, … A test key and a live key look identical and are not.

An account is deliberately not a login. A login is what a person types at a sign-in form; an account is what a machine presents to an API. They expire differently, they are revoked differently, and conflating them is how a rotated refresh token ends up in a password history array.

Folders

A vault MAY carry folders. A folder is { "id": "<uuid>", "name": "Work" } and is referenced by an item's folderId. Folders are flat: a name MAY contain / and an implementation MAY render that as a hierarchy, but the model does not nest, because every product that nests them disagrees about what a move does.

Folder names are not encrypted by the item envelope — they live in the database payload, which is encrypted as a whole, and in a vault's own storage they are wherever that implementation puts them. An implementation that stores folder names in the clear MUST say so; a folder list is a good description of someone's life.

Worked examples

A login with history:

{
  "v": 1, "id": "6f1e7b3a-1f4e-4f0f-9a1d-6a2f0b6f8d21", "type": "login",
  "name": "GitHub", "favorite": true, "folderId": null, "notes": "",
  "login": {
    "username": "anthony",
    "password": "correct-horse-battery-staple",
    "totp": "otpauth://totp/GitHub:anthony?secret=JBSWY3DPEHPK3PXP&issuer=GitHub",
    "uris": [{ "uri": "https://github.com", "match": "domain" }]
  },
  "history": [{ "password": "hunter2", "changedAt": "2026-01-04T09:12:00.000Z" }],
  "createdAt": "2025-11-02T10:00:00.000Z",
  "updatedAt": "2026-01-04T09:12:00.000Z"
}

An SSH deploy key:

{
  "v": 1, "id": "0c0f7a2e-9d1a-4f6e-b2b7-1f3d5a7c9e11", "type": "key",
  "name": "deploy@railway", "notes": "Rotated quarterly",
  "key": {
    "keyType": "ssh", "algorithm": "ed25519",
    "publicKey": "ssh-ed25519 AAAAC3Nza… deploy@railway",
    "privateKey": "<the armoured private key body>",
    "passphrase": "", "fingerprint": "SHA256:9Vt…",
    "path": "~/.ssh/id_ed25519_railway", "mode": "0600", "expiresAt": ""
  },
  "createdAt": "2026-03-01T00:00:00.000Z",
  "updatedAt": "2026-06-01T00:00:00.000Z"
}

A connected account:

{
  "v": 1, "id": "3a8c1d55-77e2-4b0a-9d3c-2b6e5f8a1c04", "type": "account",
  "name": "Stripe (live)",
  "account": {
    "provider": "stripe", "accountId": "acct_1P…", "handle": "profullstack",
    "email": "billing@profullstack.com",
    "accessToken": "<access token>", "refreshToken": "", "tokenType": "bearer",
    "scopes": ["charges:write", "customers:read"],
    "expiresAt": "", "environment": "production"
  },
  "createdAt": "2026-02-14T00:00:00.000Z",
  "updatedAt": "2026-02-14T00:00:00.000Z"
}