Fairblock is integrating its privacy-preserving technology with Noble's EVM AppLayer, introducing confidential payments and applications for stablecoins issued on the network. The partnership aims to solve a key challenge for businesses using blockchains: the public nature of transactions.

This collaboration allows stablecoin applications to encrypt transfer details and balances, ensuring privacy for business operations. Crucially, the system includes a built-in disclosure model, allowing businesses to reveal transaction details for audits and compliance purposes. This directly addresses the shortcomings of previous privacy tools, which often hindered regulatory adherence and suffered from performance issues.

Despite years of research, mainstream businesses have hesitated to adopt on-chain privacy for three persistent reasons:

Compliance risk Many existing privacy protocols default to full anonymity or use mixing pools that obscure fund provenance, creating friction with regulators and slowing audits.Poor performance and user experience Heavy zero-knowledge proofs, fully homomorphic encryption off-loading, or isolated privacy chains often mean multi-minute confirmation times, new wallets, and complex bridging.Fragile security models Several recent privacy networks rely on a single Trusted Execution Environment (TEE) design or multi-party computation (MPC) honest-majority assumptions — both of which have suffered repeated exploits.

Fairblock solves all three simultaneously with a novel multimodal cryptographic architecture that combines:

• Lightweight homomorphic encryption (HE)
• Zero-knowledge proofs (ZK)
• Threshold identity-based encryption (IBE)

“Building stablecoin issuance infrastructure over the past three years has shown us just how essential privacy will be for the next generation of stablecoin applications,” said Jelena Djuric, co-founder of Noble. “To unlock their full potential, stablecoins need an environment where sensitive financial activity isn’t exposed by default. The Noble AppLayer, with Fairblock, will give builders the freedom to create performant, privacy-preserving applications.”

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https://noble.xyz/blog/confidential-payments-and-applications-coming-to-noble-with-fairblock