- enabling the rsa feature is reverted: no other family location uses
RSA, ed25519 is the suggested path everywhere; the tree drops
rsa 0.10.0-rc.18 + pkcs1 0.8.0-rc.4 entirely (verified: aws-lc-rs-only
scratch build clean and RC-free except ssh-key =0.7.0-rc.11, which
russh exact-pins itself on the russh::keys path)
- RSA user keys decline fail-closed (russh fails RSA signing explicitly
when the feature is absent — 0.63.2 fix); assembly registration policy
(alkforge: register ed25519) noted as assembler territory
- README ADR table title updated
Phase 1 (architecture) — in progress. Phase 0 is closed: all three
POCs passed (121 checks; docs/research/poc-{1,2,3}-*.md) and the
research docs record their corrections. This directory is being
populated: ADR-001 (the alk/ssh ALPN pin) is drafted for review, the
OQ tracker is seeded from the POC findings, and the spec documents
below are being written. No implementation until specs reach
reviewed (per docs/sdd_process.md).