The Quantum Threat Is No Longer Theoretical
The cryptographic landscape is undergoing its most significant transformation since the adoption of public-key cryptography in the 1970s. With NIST's finalization of FIPS 203, 204, and 205 in August 2024, the post-quantum era has officially begun. Organizations worldwide are now racing to implement quantum-resistant algorithms before large-scale quantum computers become a reality.
HPCrypt 2.0 represents years of research and engineering effort to deliver production-ready post-quantum cryptography with uncompromising performance.
What Makes HPCrypt 2.0 Different
ML-DSA: Digital Signatures for the Quantum Age
The Module-Lattice Digital Signature Algorithm (ML-DSA, standardized as FIPS 204) replaces classical signature schemes like RSA and ECDSA. Our implementation delivers exceptional performance across all security levels:
| Security Level | Key Generation | Signing | Verification |
|---|---|---|---|
| ML-DSA-44 | 22.5μs | 52.3μs | 28.9μs |
| ML-DSA-65 | 38.7μs | 74.4μs | 40.9μs |
| ML-DSA-87 | 61.2μs | 108.2μs | 58.3μs |
These numbers represent a 2x improvement over alternative Rust implementations, achieved through careful algorithm design and architecture-specific optimizations.
ML-KEM: Secure Key Exchange
The Module-Lattice Key Encapsulation Mechanism (ML-KEM, standardized as FIPS 203) enables secure key establishment resistant to quantum attacks. Our implementation focuses on the critical encapsulation/decapsulation round-trip:
| Security Level | Encapsulation | Decapsulation | Round-Trip |
|---|---|---|---|
| ML-KEM-512 | 18.7μs | 19.2μs | 37.9μs |
| ML-KEM-768 | 29.1μs | 30.5μs | 59.6μs |
| ML-KEM-1024 | 49.0μs | 51.3μs | 100.3μs |
Architecture and Design Decisions
Pure Rust with Zero Unsafe Code
HPCrypt 2.0 is written entirely in safe Rust, eliminating entire classes of memory safety vulnerabilities. We achieve competitive performance without resorting to unsafe blocks through:
- Careful memory layout optimization
- Strategic use of const generics
- Compile-time loop unrolling
Constant-Time Execution
Every operation in HPCrypt runs in constant time, preventing timing side-channel attacks:
use hpcrypt::ml_dsa::{MlDsa65, SigningKey, VerifyingKey};
// Key generation is constant-time
let signing_key = SigningKey::<MlDsa65>::generate(&mut rng);
let verifying_key = signing_key.verifying_key();
// Signing and verification are constant-time
let signature = signing_key.sign(message);
verifying_key.verify(message, &signature)?;
Platform-Specific Optimizations
While maintaining a pure Rust fallback, HPCrypt automatically detects and uses platform-specific intrinsics:
- AVX2/AVX-512: Vectorized NTT operations on x86_64
- NEON: ARM-optimized polynomial arithmetic
- Portable: Efficient scalar fallback for all platforms
Migration Strategy
For organizations planning their post-quantum migration, we recommend a phased approach:
- Inventory: Catalog all cryptographic usage in your systems
- Hybrid Mode: Deploy ML-KEM alongside classical ECDH for key exchange
- Testing: Validate performance under production workloads
- Full Migration: Replace classical algorithms entirely
HPCrypt 2.0 supports hybrid modes out of the box, allowing gradual migration without service disruption.
What's Coming Next
- WebAssembly Target: Browser-native post-quantum crypto
Get Started
HPCrypt 2.0 is available now on GitHub. Full documentation, migration guides, and benchmarking tools are included.
The quantum future is coming. With HPCrypt 2.0, you're ready for it.