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76 lines
2.8 KiB
Markdown
76 lines
2.8 KiB
Markdown
# PQ Crypto Catalog
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This is a repository of post-quantum schemes copied from either the submission to the NIST Post-Quantum Standardization or [PQClean](https://github.com/PQClean/PQClean) project. The goal of the library is to provide easy to use API which enables quick experimentation with some post-quantum cryptographic schemes.
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Users shouldn't expect any level of security provided by this code. The library is not meant to be used on live production systems.
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## Schemes support
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| Name | NIST Round | x86 optimized |
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|--------------------------|------------|---------------|
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| Kyber | 3 | x |
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| NTRU | 3 | x |
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| SABER | 3 | x |
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| FrodoKEM | 3 | |
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| NTRU Prime | 3 | x |
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| HQC-RMRS | 3 | x |
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| Dilithium | 3 | x |
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| Falcon | 2 | |
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| Rainbow | 3 | |
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| SPHINCS+ SHA256/SHAKE256 | 3 | x |
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## Building
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CMake is used to build the library:
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```bash
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mkdir build
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cd build
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cmake -DCMAKE_BUILD_TYPE=Release ..
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make
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```
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Build outputs two libraries, a static ``libpqc_s.a`` and dynamic ``libpqc.so``, which can be linked with a project.
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## API
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Library provides simple API, wrapping PQClean. For example to use KEM, one should call the library in following way:
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```c
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#include <pqc/pqc.h>
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std::vector<uint8_t> ct(ciphertext_bsz(p));
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std::vector<uint8_t> ss1(shared_secret_bsz(p));
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std::vector<uint8_t> ss2(shared_secret_bsz(p));
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std::vector<uint8_t> sk(private_key_bsz(p));
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std::vector<uint8_t> pk(public_key_bsz(p));
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const params_t *p = pqc_kem_alg_by_id(KYBER512);
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pqc_keygen(p, pk.data(), sk.data());
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pqc_kem_encapsulate(p, ct.data(), ss1.data(), pk.data());
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pqc_kem_decapsulate(p, ss2.data(), ct.data(), sk.data());
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p = pqc_sig_alg_by_id(DILITHIUM2);
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size_t sigsz = sig.capacity();
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pqc_keygen(p, pk.data(), sk.data());
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pqc_sig_create(p, sig.data(), &sigsz, msg.data(), msg.size(), sk.data());
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pqc_sig_verify(p, sig.data(), sig.size(), msg.data(), msg.size(), pk.data());
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```
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See test implemetnation in ``test/ut.cpp`` for more details.
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## Rust binding
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Rust bindgings are provided in the ``src/rustapi/pqc-sys`` and can be regenerated automatically by running ``cargo build`` in that directory.
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## Testing against Known Answer Tests
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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:
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```bash
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cd test/katrunner
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curl http://amongbytes.com/~flowher/permalinks/kat.zip --output kat.zip
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unzip kat.zip
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cargo run -- --katdir KAT
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```
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