Eymen Ünay

PhD Student in Compilers for Cryptography
University of Edinburgh

Eymen Ünay

Hi, I am a Computer Science PhD student at the University of Edinburgh, supervised by Jackson Woodruff. I have been doing research and open-source contributions on compilers for several years.

My research focuses on Compilers for Cryptography to make them faster and more efficient. Cryptography offers emerging domains such as Blockchain, Zero-Knowledge and Fully Homomorphic Encryption (FHE) with their proof-of-concepts but lack the focus on performance. I build compilers that bridge FHE applications with performance and usability.

News

Jan 2026 KeyMemRT is now open-source!
Dec 2025 Attending Computation Over Encrypted Data Industry Day in Milan!

Research

2026

KeyMemRT Compiler and Runtime: Unlocking Memory-Scalable FHE

Eymen Ünay, Björn Franke, Jackson Woodruff

2025

Optimized Rank Sort for Encrypted Real Numbers

Seunghu Kim, Eymen Ünay, Ayse Yilmazer-Metin, Hyung Tae Lee

Open Source Projects

Feb 2026

KeyMemRT Compiler

An FHE compiler reducing memory consumption by managing rotation keys

July 2025

Orion-HEIR-Translator

An FHE IR-to-IR translator from Orion to HEIR

Feb 2025

Sorting-FHE

Fastest FHE sorting algorithms

Contributions

2024 – Now

HEIR

A compiler for homomorphic encryption (google/heir)

2023 – 2024

LLVM

JITLink ARM backend co-maintainer (llvm/llvm-project)

Research Activities

2026

CGO 2026 Artifact Evaluation

Education

2025 – Now

PhD in Computer Science

University of Edinburgh

Supervisor: Jackson Woodruff

2022 – 2025

MSc Electronics Engineering

Istanbul Technical University

Rotation Tree: Accelerating Homomorphic Encryption Common Input Rotations. An FHE code optimisation accelerating Matrix-Vector Multiplication and more applications.

2020 – 2024

BSc Computer Engineering

Istanbul Technical University

Open Source Development of LLVM Just-In-Time Linker Backend Targeting ARM in ELF Format

2019 – 2023

BSc Electronics and Communication Engineering

Istanbul Technical University

Supporting Custom Instructions with LLVM Compiler for RISC-V Processor

Teaching

2026

Supervisor in Cryptography

University of Cambridge

2026

Marker in Compiling Techniques

University of Edinburgh

Talks

Jan 2026

Too Many Keys? Let KeyMemRT Manage Your FHE Keys

University of Glasgow

Nov 2025

Privacy Preserving ML from the Ground Up

University of Oxford

June 2024

Experiences Working with LLVM

Koç University, Istanbul

May 2024

Open Source Development of LLVM Just-In-Time Linker Backend Targeting ARM in ELF Format

BAŞARIM'24, METU, Ankara

Mar 2024

NAXOR: A Custom RISC-V Instruction to Elevate Cryptographic Algorithm Performance

ACM CGO SRC 2024, Edinburgh

Jan 2024

Reproduction of "Accelerating Convolutional Neural Network by Exploiting Sparsity on GPUs"

HiPEAC SRC 2024, Munich

Awards

2024

FHERMA Sorting Challenge of IBM — Ranked 2nd

2024

ACM CGO Student Research Competition — Ranked 3rd

2019 – 2024

TEV High Merit Scholarship

Organization

May 2024

Organized "LLVM Working Group"

BAŞARIM 2024 National High Performance Computing Conference, Ankara