Abtin Afshar

According to our database, Abtin Afshar authored at least 7 papers between 2023 and 2026.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2026

Distributed Monotone-Policy Encryption with Silent Setup from Lattices.

Abtin Afshar, Rishab Goyal, Saikumar Yadugiri

IACR Cryptol. ePrint Arch., 2026

Multi-hop Multi-key Homomorphic Signatures with Context Hiding from Standard Assumptions.

Abtin Afshar, Jiaqi Cheng, Rishab Goyal

Proceedings of the Public-Key Cryptography - PKC 2026, 2026

2025

Verifiable Streaming Computation and Step-by-Step Zero-Knowledge.

Abtin Afshar, Rishab Goyal

IACR Cryptol. ePrint Arch., 2025

2024

Encrypted RAM Delegation: Applications to Rate-1 Extractable Arguments, Homomorphic NIZKs, MPC, and more.

Abtin Afshar, Jiaqi Cheng, Rishab Goyal, Aayush Yadav, Saikumar Yadugiri

IACR Cryptol. ePrint Arch., 2024

Leveled Fully-Homomorphic Signatures from Batch Arguments.

Abtin Afshar, Jiaqi Cheng, Rishab Goyal

IACR Cryptol. ePrint Arch., 2024

2023

Fine-Grained Non-interactive Key-Exchange: Constructions and Lower Bounds.

Abtin Afshar, Geoffroy Couteau, Mohammad Mahmoody, Elahe Sadeghi

Proceedings of the Advances in Cryptology - EUROCRYPT 2023, 2023

On the (Im)possibility of Time-Lock Puzzles in the Quantum Random Oracle Model.

Abtin Afshar, Kai-Min Chung, Yao-Ching Hsieh, Yao-Ting Lin, Mohammad Mahmoody

Proceedings of the Advances in Cryptology - ASIACRYPT 2023, 2023