Description
The `pqcrypto` crate and the entire `pqcrypto-*` ecosystem wrap C implementations
from [PQClean](https://github.com/PQClean/PQClean). The PQClean project is being
archived in or after July 2026 (see [PQClean/PQClean#604](https://github.com/PQClean/PQClean/issues/604)),
after which no further security patches, algorithm updates, or bug fixes will
be applied to the upstream implementations.
As a result, this crate and all dependent crates in the `pqcrypto-*` ecosystem
will no longer receive updates. Users should migrate to actively maintained
alternatives. Pure-Rust replacements are available for several algorithms:
- ML-KEM (FIPS 203): [`ml-kem`](https://crates.io/crates/ml-kem)
- ML-DSA (FIPS 204): [`ml-dsa`](https://crates.io/crates/ml-dsa)
- SLH-DSA (FIPS 205): [`slh-dsa`](https://crates.io/crates/slh-dsa)
- FN-DSA (FIPS 206): [`fn-dsa`](https://crates.io/crates/fn-dsa)
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| crates.io | pqcrypto | >= 0.0.0-0 | — | RUSTSEC-2026-0164 |