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feat(TC-887): at-rest key escrow crate #513

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feat(TC-887): at-rest key escrow crate #513

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6523da5
feat(TC-887): at-rest key escrow crate
tinycloud-bot[bot] Nov 7, 2026
0e477c1
fix(TC-887): leave the production compose unchanged
tinycloud-bot[bot] Nov 7, 2026
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662 changes: 628 additions & 34 deletions Cargo.lock
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1 change: 1 addition & 0 deletions Cargo.toml
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Expand Up @@ -8,6 +8,7 @@ members = [
"tinycloud-verifier-wasm",
"tinycloud-sdk-rs",
"tinycloud-core",
"tinycloud-at-rest-escrow",
"tinycloud-threshold",
"dependencies/siwe",
"dependencies/siwe-recap",
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1 change: 1 addition & 0 deletions Dockerfile
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Expand Up @@ -16,6 +16,7 @@ COPY ./rust-toolchain.toml ./
COPY ./tinycloud-node-server/ ./tinycloud-node-server/
COPY ./tinycloud-auth/ ./tinycloud-auth/
COPY ./tinycloud-core/ ./tinycloud-core/
COPY ./tinycloud-at-rest-escrow/ ./tinycloud-at-rest-escrow/
COPY ./tinycloud-threshold/ ./tinycloud-threshold/
COPY ./tinycloud-sdk-rs/ ./tinycloud-sdk-rs/
COPY ./tinycloud-sdk-wasm/ ./tinycloud-sdk-wasm/
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5 changes: 5 additions & 0 deletions release-plz.toml
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Expand Up @@ -71,6 +71,11 @@ name = "tinycloud-sdk-rs"
release = false
publish = false

[[package]]
name = "tinycloud-at-rest-escrow"
release = false
publish = false

[[package]]
name = "tinycloud-sdk-wasm"
release = false
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34 changes: 34 additions & 0 deletions tinycloud-at-rest-escrow/Cargo.toml
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@@ -0,0 +1,34 @@
[package]
name = "tinycloud-at-rest-escrow"
version = "0.1.0"
edition = "2021"
publish = false
description = "Escrow of the TinyCloud at-rest root key: 2-of-3 Shamir shares sealed to pinned age recipients (TC-887)"

[dependencies]
# Pinned exactly: share and bundle formats depend on these crates' behaviour.
age = { version = "=0.12.1", default-features = false, features = ["armor"] }
vsss-rs = { version = "=5.4.0", default-features = false, features = ["std", "zeroize"] }
# age-plugin-yubikey's `piv-p256` stanza (see src/piv.rs); same versions age uses.
age-core = "=0.12.0"
p256 = { version = "0.13", features = ["ecdh"] }
base64 = { workspace = true }
hkdf = "0.12"
hmac = "0.12"
sha2 = "0.10"
subtle = "2.6"
zeroize = { version = "1", features = ["derive"] }
rand = "0.8"
serde = { workspace = true }
serde_json = { workspace = true }
hex = { workspace = true }
thiserror = { workspace = true }
# Strict app-compose reading (src/compose.rs); pinned: what it accepts is a
# security property.
yaml-rust2 = "=0.13.0"

[dev-dependencies]
# Software P-256 identities that open `p256tag` and `piv-p256` stanzas, so
# tests can round-trip shares sealed to hardware-key recipients.
hpke = { version = "0.12", default-features = false, features = ["alloc", "p256"] }
bech32 = "0.11"
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