Crate pqcrypto 

PQCrypto - Post-Quantum Cryptography for R-SRP Ultra

Provides hybrid cryptographic primitives combining classical algorithms (RSA, ECDSA) with post-quantum algorithms (Dilithium, Kyber) from NIST 2024.

Security Model

• Hybrid Signatures: Ed25519 + Dilithium2/3/5
• Hybrid KEM: X25519 + Kyber512/768/1024
• Both classical and PQ must be broken to compromise the system

Standards

• NIST FIPS 203: ML-KEM (Key Encapsulation)
• NIST FIPS 204: ML-DSA (Digital Signatures)
• NIST FIPS 205: SLH-DSA (Hash-based signatures)

Re-exports

pub use error::PqcError;

pub use hybrid::HybridKEM;

pub use hybrid::HybridSignature;

pub use kem::KemProvider;

pub use kem::Kyber;

pub use kem::KyberLevel;

pub use kem::MockKemProvider;

pub use signature::Dilithium;

pub use signature::DilithiumLevel;

pub use signature::MockProvider;

pub use signature::SignatureProvider;

Modules

error

PQCrypto Error Types

hybrid

Hybrid Cryptographic Primitives

kem

Kyber Post-Quantum Key Encapsulation Mechanism

signature

Dilithium Post-Quantum Signature Implementation

Constants

ALGORITHM_DILITHIUM2

PQC Algorithm identifiers for serialization

ALGORITHM_DILITHIUM3

ALGORITHM_DILITHIUM5

ALGORITHM_KYBER512

ALGORITHM_KYBER768

ALGORITHM_KYBER1024

PRODUCTION_DEFAULT_DILITHIUM_LEVEL

Frozen production default for signatures.

PRODUCTION_DEFAULT_KYBER_LEVEL

Frozen production default for KEM.

VERSION

Version information

Functions

validate_runtime_security_config

Runtime hardening checks for production deployments.