My area of research is cryptography, used for decentralization and privacy, and my research finds applications in outsourced storage environments and cryptocurrencies. I am a postdoctoral researcher at IRIF. Before, I was a postdoctoral researcher at NYU and GMU.  I earned my PhD at GMU where I worked with Prof. Foteini Baldimtsi and I was a Protocol Labs fellowship award recipient. I have a BS degree in Applied Informatics from UOM, Greece and a BS degree in Mathematics from AUTH, Greece.  

I am interested in the distance between the crypto dream and today's tech industry.

• Joseph Bonneau, Jessica Chen, Miranda Christ and Ioanna Karantaidou. "Merkle Mountain Ranges are Optimal: On the Witness Update Frequency of Cryptographic Accumulators".  Annual International Cryptology Conference (CRYPTO), 2025. https://eprint.iacr.org/2025/234.pdf 

• Ioanna Karantaidou, Omar Renawi, Foteini Baldimtsi, Nikolaos Kamarinakis, Jonathan Katz and Julian Loss. "Blind Multi-Signatures for Anonymous Tokens with Decentralized Issuance".  ACM Conference on Computer and Communications Security (CCS), 2024. https://eprint.iacr.org/2024/1406.pdf 

• Giuseppe Ateniese, Foteini Baldimtsi, Matteo Campanelli, Danilo Francati and Ioanna Karantaidou. "Advancing Scalability in Decentralized Storage: A Novel Approach to Proof-of-Replication via Polynomial Evaluation".  Annual International Cryptology Conference (CRYPTO), 2024  https://eprint.iacr.org/2023/1569.pdf 

• Foteini Baldimtsi, Ioanna Karantaidou and Srinivasan Raghuraman. "Oblivious Accumulators".  Public Key Cryptography (PKC), 2024.  https://eprint.iacr.org/2023/1001.pdf 

• Shravan Srinivasan, Ioanna Karantaidou, Foteini Baldimtsi and Charalampos Papamanthou. “Batching, Aggregation, and Zero-Knowledge Proofs in Bilinear Accumulators”.  ACM Conference on Computer and Communications Security (CCS), 2022.  https://eprint.iacr.org/2022/1779.pdf 

• Mingyu  Liang,  Ioanna  Karantaidou, Foteini  Baldimtsi,  S.  Dov  Gordon and  Mayank  Varia.   “(epsilon, delta)-indistinguishable mixing for cryptocurrencies.”  Proceedings on Privacy Enhancing Technologies (PoPETS), 2022. eprint.iacr.org/2021/1197.pdf 

• Ioanna Karantaidou and Foteini Baldimtsi.  “Efficient Constructions of Pairing Based Accumulators.”  Computer Security Foundations Symposium IEEE (CSF), 2021. eprint.iacr.org/2021/638.pdf          presentation

• Ioanna Karantaidou, Spyros T. Halkidis, Sophia Petridou, Lefteris Mamatas and George Stephanides, “Pairing-Based Cryptography on the Internet of Things: A Feasibility Study”, International Conference on Wired/Wireless Internet Communication (IFIP WWIC), 2018

for my non-academic work