Implementation of quantum-safe signature and KEM schemes submitted to NIST PQC Standardization Process.
The goal is to provide an easy-to-use API in C and Rust to enable experimentation and education. The code is derived from the submission to the NIST Post-Quantum Standardization, either directly or by leveraging PQClean project.
Users shouldn't expect any level of security provided by this code. Most of the code is unmaintained. The library is not meant to be used on production systems (or any other systems).
All schemes selected by NIST duing PQC standardization:
| Name | x86 optimized |
|---|---|
| Kyber | x |
| Dilithium | x |
| Falcon | |
| SPHINCS+ SHA256/SHAKE256 | x |
KEM candidates for an additional round 4.
| Name | x86 optimized |
|---|---|
| HQC-RMRS | x |
| McEliece |
CMake is used to build the library:
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
makeBuild outputs two libraries, a static libpqc_s.a and dynamic libpqc.so, which can be linked with a project.
Library provides simple API, wrapping PQClean. For example to use KEM, one should call the library in following way:
#include <pqc/pqc.h>
const params_t *p = pqc_kem_alg_by_id(KYBER512);
std::vector<uint8_t> ct(ciphertext_bsz(p));
std::vector<uint8_t> ss1(shared_secret_bsz(p));
std::vector<uint8_t> ss2(shared_secret_bsz(p));
std::vector<uint8_t> sk(private_key_bsz(p));
std::vector<uint8_t> pk(public_key_bsz(p));
pqc_keygen(p, pk.data(), sk.data());
pqc_kem_encapsulate(p, ct.data(), ss1.data(), pk.data());
pqc_kem_decapsulate(p, ss2.data(), ct.data(), sk.data());
p = pqc_sig_alg_by_id(DILITHIUM2);
size_t sigsz = sig.capacity();
pqc_keygen(p, pk.data(), sk.data());
pqc_sig_create(p, sig.data(), &sigsz, msg.data(), msg.size(), sk.data());
pqc_sig_verify(p, sig.data(), sig.size(), msg.data(), msg.size(), pk.data());See test implemetnation in test/ut.cpp for more details.
Rust bindgings are provided in the src/rustapi/pqc-sys and can be regenerated automatically by running cargo build in that directory.
Algorithms are tested against KATs, by the Rust-based runner implemented in the test/katrunner (only verification/decpaulation). The runner uses katwalk crate for parsing NIST format. To run it:
cd test/katrunner
curl http://amongbytes.com/~flowher/permalinks/kat.zip --output kat.zip
unzip kat.zip
cargo run -- --katdir KAT
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