The team at a16z crypto, in collaboration with the omnichain protocol LayerZero and researchers from Carnegie Mellon University and the University of Southern California, has introduced Lattice Jolt. This updated verifiable computation system is designed to protect Web3 infrastructure from potential quantum computer attacks. Beyond future-proofing security, the new approach achieves a 2–10x speedup in proof generation while significantly reducing proof size.
From Elliptic Curves to Mathematical Lattices
Classic zero-knowledge proof systems and verifiable computation tools (zkVMs) have long relied on elliptic curve cryptography. However, as quantum computing advances, these mathematical foundations become vulnerable, as quantum algorithms can break such schemes within realistic timeframes.
In Lattice Jolt, the Dory component—which relied on elliptic curves—has been replaced by a new module named Akita. It is built on lattice-based cryptography, utilizing vector mathematical problems in multidimensional spaces that remain intractable even for quantum supercomputers.
- Standard Compliance: A similar mathematical framework underpins the ML-KEM and ML-DSA standards approved by NIST in 2024.
- Security Level: Akita guarantees a 128-bit level of quantum-resistant security.
- Data Compression: The final proof size in Lattice Jolt is under 100 KB. According to LayerZero, Akita produces proofs 2–8x smaller than existing post-quantum alternatives.
Performance Architecture: What Drives the Speedup
Transitioning to lattice math enabled the optimization of core arithmetic: the size of numbers processed in key operations dropped from 256 bits down to 128 bits. This dramatically reduced processing overhead when executing RISC-V virtual machine instructions.
| Operating Mode | Speed (RISC-V cycles / sec) | Performance Gain |
| Previous Jolt version (CPU) | ~1,000,000 | Baseline |
| Lattice Jolt (CPU) | >2,000,000 | 2x (Crypto scheme optimization) |
| Lattice Jolt (GPU via Apple Metal) | >10,000,000 | 10x (Hardware acceleration) |
(Testing was conducted on Apple MacBook laptops).
Foundations for the Zero Blockchain and Privacy Challenges
The primary deployment target for this technology is the LayerZero ecosystem and its upcoming Zero blockchain. LayerZero views the Akita release as the first strategic milestone toward full quantum resilience, with infrastructure upgrades planned both prior to and following the mainnet launch.
Verifiable Computation vs. Privacy
a16z crypto emphasizes that while the current version of Jolt proves the correctness of program execution, it does not automatically hide input data. Developers are preparing a separate paper on adding Zero-Knowledge properties to conceal sensitive information.
Despite these benchmark gains, the Lattice Jolt repository remains in alpha. While open to third-party developers, the code requires comprehensive security audits before deployment in commercial production networks.
