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WIP: add OPAQUE password-authenticated key exchange

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Add opaque-ke (v4, ristretto255) for password-based registration and
login. Extend NodeService schema with opaqueRegisterStart/Finish and
opaqueLoginStart/Finish RPCs. Add Store trait methods for OPAQUE server
setup and user records. Initial e2e integration test scaffolding.

Note: FileBackedStore does not yet implement the new Store trait
methods — server compilation is temporarily broken.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Christian Nennemann
2026-02-22 08:25:34 +01:00
parent 9fdb37876a
commit 8d5c1b3b9b
11 changed files with 557 additions and 31 deletions
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Cargo.toml
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@@ -25,6 +25,7 @@ ed25519-dalek = { version = "2", features = ["rand_core"] }
sha2 = { version = "0.10" }
hkdf = { version = "0.12" }
chacha20poly1305 = { version = "0.10" }
opaque-ke = { version = "4", features = ["ristretto255"] }
zeroize = { version = "1", features = ["derive"] }
rand = { version = "0.8" }
serde = { version = "1", features = ["derive"] }