ml-kem: impl KeyExport for DecapsulationKey#228
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With the current way we implement expanded key support, this currently needs to be fallible. Perhaps we can make a separate type which contains only `dk_pke` and `z` like `ExpandedDecapsulationKey` so we can ensure `DecapsulationKey` always has the seed. For now, this at least lets us have an impl of `KeyExport`, even if having a panicking condition is not ideal.
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tarcieri
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## Added - `Seed` support e.g. `DecapsulationKey::from_seed` (#133, #138) - PKCS#8 support (#135) - `KeyInit`, `KeySizeUser`, and `KeyExport` impls for decapsulation keys (#156, #228) - Parameter set modules: `ml_kem_512`, `mk_kem_768`, `mk_kem_1024` (#162) - `DecapsulationKey::from_expanded` deprecated compatibility support (#163) - `TryKeyInit` and `KeyExport` impls for encapsulation keys (#188) - Validations against Wycheproof test vectors (#213, #214, #215, #217) - Implement `kem::Kem` trait (#223) - Support for `kem::FromSeed` trait (#255) ## Changed - Edition changed to 2024 and MSRV bumped to 1.85 (#118) - Relax MSRV policy and allow MSRV bumps in patch releases - Upgrade `hybrid-array` dependency to 0.4 (#129) - Extract `module-lattice` crate (#199, #202, #204, #209, #210, #211, #212, #218, #219, #220) - Replace `EncodedSizeUser` with `ExpandedKeyEncoding` (#226) - Bump `getrandom` to v0.4 (#245) - Bump `rand_core` to v0.10 (#245) - Migrate from `subtle` to `ctutils` (#277) - Bump `sha3` dependency to v0.11 (#282) - Bump `kem` dependency to v0.3 (#283) - Bump `pkcs8` dependency to v0.11 (#291) ## Fixed - Validate encryption/encapsulation keys (#179) - Validate expanded decapsulation key hash (#207) ## Removed - `Kem` struct and `KemCore` trait - replaced by `kem::Kem` (#223)
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With the current way we implement expanded key support, this currently needs to be fallible, and since
KeyExportis infallible we have to panic.Perhaps we can make a separate type which contains only
dk_pkeandzlikeExpandedDecapsulationKeyso we can ensureDecapsulationKeyalways has the seed.For now, this at least lets us have an impl of
KeyExport, even if having a panicking condition is not ideal.