<p class="sc-jegxcv powTK"><strong>Zug, Switzerland, August 13th, 2025, Chainwire</strong></p>
&nbsp;

<a href="https://dwalletlabs.com/" target="_blank" rel="nofollow noopener">dWallet Labs</a>, a core contributor of <a href="https://ika.xyz" target="_blank" rel="nofollow noopener">Ika</a>, and a leader in cryptography and decentralized security, today announced <strong>REFHE</strong> (Ring-Enhanced Fully Homomorphic Encryption), a new encryption scheme that brings <strong>encrypted computation closer than ever to how real processors work</strong>. REFHE uniquely supports <strong>both arithmetic and logical operations</strong> on encrypted 64-bit values, enabling software to <strong>switch seamlessly between math and logic</strong>—just like a modern CPU.
<h3>Why This Matters</h3>
Fully Homomorphic Encryption (FHE) allows computation on encrypted data without revealing the underlying information—a capability long considered a “holy grail” of cryptography. But existing schemes typically force a trade-off: choose between efficient arithmetic or efficient logic. REFHE removes that barrier, creating a unified approach where real-world software—full of mixed arithmetic and logic—can run encrypted.
<h2>Breaking a Decade of TFHE Dominance</h2>
Since 2016, <strong>TFHE</strong> has been one of the most widely used FHE schemes, especially in the context of blockchain use cases, and is leveraged by companies such as Zama. For nearly a decade, no scheme had meaningfully surpassed its performance and latency—until now. REFHE delivers:
<ul>
 	<li><strong>100× smaller ciphertexts</strong></li>
 	<li><strong>20× faster multiplications</strong></li>
 	<li><strong>1,000× faster additions</strong></li>
</ul>
These gains, alongside being optimized for both arithmetic and logical operations, make it the first FHE scheme capable of operating as a practical, CPU-like encrypted execution engine.
<h3>Implications for 2PC-MPC and the Ika Network</h3>
The latest FHE-related research, including REFHE and Threshold FHE, can be integrated into the<strong> 2PC-MPC</strong> protocol powering the fastest MPC network - <a href="https://ika.xyz/" target="_blank" rel="nofollow noopener"><strong>Ika</strong></a>, coordinated on Sui. With these breakthroughs, 2PC-MPC could directly execute its Zero-Trust signing with FHE, reducing communication rounds and boosting latency, throughput, and security.
<h3>Building on Recent Threshold FHE Breakthroughs</h3>
REFHE follows dWallet Labs’ recent <a href="https://ika.xyz/research/threshold-fhe" target="_blank" rel="nofollow noopener"><strong>Threshold FHE</strong></a> research, which enables scalable, efficient, secure multi-party decryption. Together, these advances form the basis for encrypted systems that are both high-performance and capable of real-world program logic.
<blockquote>"This is more than a speedup," said Omer Sadika, Co-Founder of Ika and CEO at dWallet Labs. "It’s about finally aligning encrypted computation with the way real software and CPUs work. That opens up a new class of secure, privacy-preserving applications that were simply not practical before."</blockquote>
<h2>About Ika</h2>
<a href="http://ika.xyz/" target="_blank" rel="nofollow noopener">Ika</a> is the fastest parallel MPC network, offering sub-second latency, unprecedented scale and decentralization, and zero-trust security. As the premier choice for interoperability, decentralized custody, and chain abstraction, Ika is set to revolutionize digital asset security and multi-chain DeFi. Users can learn more <a href="http://ika.xyz/" target="_blank" rel="nofollow noopener">here</a>
<h2>About dWallet Labs</h2>
<a href="https://dwalletlabs.com/" target="_blank" rel="nofollow noopener">dWallet Labs</a> is at the forefront of cryptographic innovation, building secure, decentralized protocols for the next generation of the internet. From pioneering 2PC-MPC to advancing FHE, the company is shaping the infrastructure for a secure, interconnected world.
<h5>Contact</h5>
<strong>Ika PR</strong>
<strong>Ika</strong>
<strong>pr@ika.xyz</strong>

Ika Core Contributor dWallet Labs Reveals REFHE: First FHE Scheme That Works Like a Real CPU

Ika is the fastest parallel MPC network, offering sub-second latency, unprecedented scale and decentralization

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Ika Core Contributor dWallet Labs Reveals REFHE: First FHE Scheme That Works Like a Real CPU

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