dWallet Labs Launches REFHE FHE Scheme That Operates Like Real CPU

dWallet Labs, a core contributor to the Ika protocol, has announced the launch of REFHE, a groundbreaking fully homomorphic encryption (FHE) scheme that operates like a real CPU. This innovation allows the simultaneous execution of both arithmetic and logical operations on encrypted 64-bit data, enabling seamless transitions between these operations without the need for decryption [1]. REFHE represents a significant advancement in privacy-preserving technologies, particularly in the blockchain and decentralized application (dApp) ecosystems.

Unlike traditional FHE systems, which have historically required developers to optimize for either arithmetic or logical efficiency, REFHE eliminates this compromise. This unified approach supports real-world encrypted software execution, where both types of operations are often required. The technology aligns encrypted computation with the way conventional CPUs operate, enabling the creation of a new class of secure, privacy-preserving applications that were previously impractical [2].

The introduction of REFHE has the potential to reshape how data is processed in secure environments. By enabling encrypted data to be treated like unencrypted data during computation, it significantly enhances data privacy and security. According to the press release, this could have far-reaching implications for industries that handle sensitive information, such as finance, healthcare, and identity management [3]. The design of REFHE addresses some of the performance limitations that have historically hindered FHE’s adoption in mainstream computing.

A key technical feature of REFHE is its ability to handle encrypted 64-bit values. Many existing FHE systems are either restricted to simpler operations or require data to be fragmented into smaller components before encryption. REFHE, by contrast, offers a more flexible and scalable solution for encrypted computation, potentially enabling new use cases such as secure AI training and encrypted data analytics [4].

The timing of the announcement is also significant, as it aligns with increasing interest in cryptographic advancements within the blockchain and Web3 communities. dWallet Labs’ work has already drawn attention in industry discussions around secure multi-party computation and long-term cryptocurrency trends, highlighting the broader relevance of FHE in the development of decentralized technologies [5]. While specific performance metrics for REFHE were not disclosed, the claim that it can operate like a real CPU suggests a level of optimization that distinguishes it from previous FHE implementations.

As dWallet Labs continues to refine and expand upon this development, it will be important to observe how developers and enterprises integrate REFHE into their systems and what new applications may emerge. The launch of REFHE marks a significant milestone in the evolution of homomorphic encryption and its practical applications, bridging the gap between cryptographic security and computational efficiency in a way that could transform multiple industries.

Source:

[1] HackerNoon. "Ika Core Contributor dWallet Labs Reveals REFHE: First FHE Scheme That Works Like a Real CPU." https://hackernoon.com/ika-core-contributor-dwallet-labs-reveals-refhe-first-fhe-scheme-that-works-like-a-real-cpu

[2] XT.com. "Ika Core Contributor dWallet Labs Reveals REFHE: First FHE Scheme That Works Like a Real CPU." https://www.xt.com/en/blog/community-news/2025-08-13T10:18:43.000Z

[5] TechBullion. "4 Best Long-Term Cryptos in 2025: BlockDAG, Ethereum, ..." https://techbullion.com/4-best-long-term-cryptos-in-2025-blockdag-ethereum-bnb-solana/