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feat(server): introduce VaultCoordinator for multi-operator Shamir bootstrap/unseal

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VaultCoordinator collects operator passphrases, splits the seal key into
Shamir shares on bootstrap (encrypting each share with the operator's
passphrase via Argon2 + XChaCha20-Poly1305), and reconstructs the seal
key from threshold shares on unseal. Adds vsss-rs 5.4.0 and rand_core 0.6
dependencies.
This commit is contained in:
CleverWild
2026-06-12 19:43:09 +02:00
parent 9764b0d5ce
commit 6f65c907a3
5 changed files with 331 additions and 8 deletions
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server/crates/arbiter-server/Cargo.toml
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@@ -51,6 +51,7 @@ x25519-dalek.workspace = true
k256.workspace = true
kameo_actors.workspace = true
vsss-rs = "5.4.0"
rand_core = "0.6"
[dev-dependencies]
proptest = "1.11.0"