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_continuum/access/policy ({"version": 1}) has every node screen every
change it receives, on every path changes come in. A policy a node
doesn't know stops its writes through the API. GET /admin/refused.
Auth plan M6.
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access::screen: a batch of received changes judged change by change,
those that change what rules read applied before the next is judged;
a refused change stays out with whatever builds on it, kept aside for
operators; changes missing dependencies wait.
Auth plan M6.
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A remake's replay writes each value as the user who wrote it,
splitting where several users wrote under a path, so replays are
judged as the original writes.
Auth plan M6 (remakes, 2.4).
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access::rules::judge: a change judged as its writer saw the document
(at its dependencies): committer a member or registering itself;
members' entries and votes their own; epochs and swarm ID from roots;
a remake's decision by its coordinator; the rest by the registry for
the user the change names.
Auth plan M6.
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document::inspect: each change's paths read from its operations before
it is applied, the same on every node: an object's place as made, cut
at lists and text; unknown objects at the root.
Auth plan M6.
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Finding the paths changes touch, from documents and from raw change
bytes, measured before M6 is built.
Auth plan M6 (measure first).
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GET /admin/changes shows whether a signature by its node vouches for
each change.
Auth plan M5.
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Sync messages carry, for each actor's writes, the latest signature the
sender checked; the receiver checks it once it holds the change.
Auth plan M5.
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A node's signatures are saved with its document (--document-file) and
loaded with it.
Auth plan M5.
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Changes left unsigned are vouched for by the node's next signature:
--sign-every 1s (default) signs the latest within a second, all signs
every change, none only those that must be.
Auth plan M5.
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Every node signs the changes it commits with its node key, an Ed25519
signature over the change's hash, kept beside the document. One
signature on an actor's latest change vouches for its earlier ones.
Protocol data and paths listed in _continuum/access/signed are signed,
and writes with ?signed=true.
Auth plan M5.
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Signing and checking change signatures, per change and per actor's
latest change, measured before M5 is built (development.md).
Auth plan M5 (measure first).
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registry::exists counted any value at _continuum/users as a registry;
keys_at answers None where there is no map, and its users (records,
members, forget records, remakes) say what they make of it.
Auth plan M1 (fix).
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Every request is judged by the registry the node holds: store reads
pruned to what the user may read, writes refused where it may not,
admin endpoints by protocol capabilities. Without a registry, as
before (--protocol-writers for protocol data).
Auth plan M1.
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_continuum/users/<name>: one entry per user, with capabilities by path
(read, write) granted by whom and when, and a disabled flag. Read
leniently: a damaged entry gives less, never more. Protocol data stays
apart: a capability outside _continuum never covers it.
Auth plan M1.
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