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feat: update mceliece #38

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Merged
mikelodder7 merged 1 commit into from
Aug 3, 2026
Merged

feat: update mceliece #38

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28 changes: 16 additions & 12 deletions Cargo.lock
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10 changes: 5 additions & 5 deletions Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ falcon = ["fn-dsa-comm"]
slh-dsa = ["dep:slh-dsa", "rand_core_010", "getrandom_v04"]
ml-dsa = ["dep:ml-dsa", "rand_core_010", "getrandom_v04"]
mayo = ["dep:pq-mayo", "dep:signature", "rand_core_010", "getrandom_v04"]
mceliece = ["dep:classic-mceliece-rust", "rand_core", "rand_core/getrandom", "rand_chacha", "zeroize"]
mceliece = ["dep:pq-mceliece", "rand_core_010", "getrandom_v04"]
ml-kem = ["dep:ml-kem"]
sntrup = ["dep:sntrup", "rand_core_010", "getrandom_v04"]
xmss = ["dep:xmss", "rand_core_010", "getrandom_v04", "zeroize"]
Expand Down Expand Up @@ -63,13 +63,13 @@ signature = { version = "3", optional = true }
rand_core_010 = { package = "rand_core", version = "0.10", optional = true }
getrandom_v04 = { package = "getrandom", version = "0.4", features = ["sys_rng"], optional = true }

[dependencies.classic-mceliece-rust]
version = "3.1.0"
[dependencies.pq-mceliece]
version = "0.2.1"
default-features = false
features = [
"iso",
"kem",
"mceliece348864",
"alloc",
"zeroize",
]
optional = true

Expand Down
19 changes: 12 additions & 7 deletions README.md
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Expand Up @@ -60,7 +60,14 @@ Two security levels following NIST standards:

### Classic McEliece (Key Encapsulation)

- **ClassicMcEliece-348864** (NIST Level 1) - Default when only `mceliece` feature enabled
- **ClassicMcEliece-348864** (legacy NIST Level 1; not part of ISO)
- **ClassicMcEliece-460896** (NIST Level 3) - Default when only `mceliece` is enabled
- **ClassicMcEliece-6688128** (NIST Level 5)
- **ClassicMcEliece-6960119** (NIST Level 5)
- **ClassicMcEliece-8192128** (NIST Level 5)

The four larger sizes are ISO standardized; 348864 remains available for legacy
interoperability. Every size supports deterministic key generation from a 32-byte seed.

### X-Wing (Hybrid Key Encapsulation)

Expand Down Expand Up @@ -183,10 +190,8 @@ anything that may already have used these schemes a clear, actionable migration
instead of a silent or confusing failure. The discriminants are never reassigned to other
schemes.

> **Note:** exclusion applies only to the weakest ML-KEM / ML-DSA lattice sets. Level 1
> parameter sets from other families — FN-DSA-512, MAYO-1, MAYO-2, and
> ClassicMcEliece-348864 — remain available, since their security margins and intended
> use cases differ.
> **Note:** ClassicMcEliece-348864 remains available for legacy interoperability; new
> applications should select one of the ISO-standardized sizes.

## API Reference

Expand Down Expand Up @@ -413,7 +418,7 @@ assert_eq!(shared_secret_sender.as_ref(), shared_secret_receiver.as_ref());
use bedrock::kem::KemScheme;

// Use Classic McEliece for code-based KEM
let scheme = KemScheme::ClassicMcEliece348864;
let scheme = KemScheme::ClassicMcEliece6960119;
let (ek, dk) = scheme.keypair()?;
let (ct, ss) = scheme.encapsulate(&ek)?;
let ss2 = scheme.decapsulate(&ct, &dk)?;
Expand Down Expand Up @@ -521,4 +526,4 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
- [ML-KEM (FIPS 203)](https://csrc.nist.gov/pubs/fips/203/final)
- [ETHFALCON Specification](https://github.com/zknoxhq/ETHFALCON)
- [X-Wing (IETF Draft)](https://datatracker.ietf.org/doc/draft-connolly-cfrg-xwing-kem/)
- [classic-mceliece-rust](https://github.com/Colfenor/classic-mceliece-rust)
- [pq-mceliece](https://github.com/mikelodder7/pq-mceliece)
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