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Author SHA1 Message Date
Scott Reimers
553fbd3a20 docs: Layer 2 — CDN-verified FoF comments (per-V_x keypair) 
Replace single per-post priv_post with per-V_x (pub_x, priv_x). Post
header publishes pub_post_set; comments declare pub_x_index; CDN
propagation nodes verify group_sig + identity_sig against named pubkey
before forwarding. Kills bandwidth-amplification DoS from admitted-but-
malicious FoF members.

Dual-derivation wrap slot (read → CEK, sign → priv_x) with shared
structure Layer 3 inherits. Comments encrypted under CEK_comments so
Mode 2 comments are genuinely FoF-read-gated, not just FoF-sign-filtered.

Author-signed revocation diff appended to post; CDN honors per-chain
revocation. Tradeoff: pub_x_index is a per-post voucher-chain pseudonym,
re-randomized across posts. Accepted.

Layer 3 banner added noting wrap-slot structure is now superseded by
Layer 2's canonical form; full reconciliation deferred.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 08:25:40 -04:00
Scott Reimers
b8b38a6f03 docs: Layer 1 — HPKE-sealed vouch grants via bio post 
Replace DM-wrapped VouchGrant with HPKE (RFC 9180) per-recipient
wrappers in the voucher's bio post. Recipient anonymity via HPKE key
privacy; readers trial-decrypt per persona. 48B per wrapper, one
ephemeral pubkey per batch. Scan gated to follows + manual gesture.
Bucket padding + per-publish shuffle for size/position opacity.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-24 07:38:12 -04:00
Scott Reimers
1fdf9a94cc docs: FoF-gating spec skeleton (hand-off to Opus) 
Drafts the Friend-of-Friend post-gating spec with crypto specifics
marked TBD — OPUS for Opus to fill in. Six-layer implementation plan;
each layer independently shippable.

Includes README overview + six layer files:
- Layer 1: V_me vouch primitive (keys, keyring, VouchGrant wire format)
- Layer 2: Mode 2 — public post + FoF-gated comments
- Layer 3: Mode 1 — FoFClosed (encrypted body via wrap_slots + prefilter)
- Layer 4: per-post keypair rotation
- Layer 5: unlock cache + prefilter optimization (perf-critical)
- Layer 6: revocation (stub; likely deferred post-v1)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
 2026-04-23 23:20:56 -04:00