Survey 6 min read

2nd FHE Landscape Survey

Lattica's 2nd FHE Landscape Survey highlights evolving commercial use cases, CKKS adoption, and practical signals for production FHE.

2nd FHE Landscape Survey

We have released Lattica’s 2nd FHE Landscape Survey. We surveyed cryptographers, engineers, and researchers to understand where fully homomorphic encryption is headed.

Highlights from the report are below. Download the full PDF from the link at the end of the article for methodology and complete findings.

Key takeaways

  1. CKKS leads the market

    CKKS is now the leading scheme in today’s market. This has changed since last year’s survey, where TFHE was #1, and is a reflection of CKKS’s strengths when working with machine learning applications.

  2. Top commercial use cases

    The top commercial use cases have also changed from last year’s survey, and are:

    a. Cross-organizational / cross-border collaboration

    b. “Private LLMs,” aka Small Language Models

    c. Biometric authentication and facial recognition

    d. Smart contracts

  3. Hardware and software together

    And finally, most respondents continue to believe FHE adoption will be achieved through a combination of hardware and software.

2026 Top Commercial Use Cases

CKKS Leads the Way

Privacy Pressure Is Industry-Agnostic

OpenFHE continues to dominate the market, followed by TFHE-rs.

FPGAs and ASICs: A Matter of When, Not If

Primary driver of widespread FHE adoption

Privacy Tech Is Converging

The Most Practical Question

Survey visual for the most practical question on FHE adoption

Read the full report

Download the PDF for methodology, full charts, and context. You can also compare with our 2025 community survey or browse more news from Lattica.

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