Ashrujit Ghoshal

According to our database, Ashrujit Ghoshal authored at least 19 papers between 2017 and 2025.

Collaborative distances:

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

2025

Zelda: Efficient Multi-server Preprocessing PIR with Unconditional Security.

Ashrujit Ghoshal, Mingxun Zhou, Bo Peng, Elaine Shi

IACR Cryptol. ePrint Arch., 2025

Pseudorandom Functions with Weak Programming Privacy and Applications to Private Information Retrieval.

Ashrujit Ghoshal, Mingxun Zhou, Elaine Shi, Bo Peng

Proceedings of the Advances in Cryptology - EUROCRYPT 2025, 2025

2024

Information-Theoretic Multi-Server PIR with Global Preprocessing.

Ashrujit Ghoshal, Baitian Li, Yaohua Ma, Chenxin Dai, Elaine Shi

IACR Cryptol. ePrint Arch., 2024

Offline-Online Indifferentiability of Cryptographic Systems.

Ashrujit Ghoshal, Ilan Komargodski, Gil Segev

IACR Cryptol. ePrint Arch., 2024

Efficient Pre-processing PIR Without Public-Key Cryptography.

Ashrujit Ghoshal, Mingxun Zhou, Elaine Shi

Proceedings of the Advances in Cryptology - EUROCRYPT 2024, 2024

2023

Tradeoffs in Cryptography

Ashrujit Ghoshal

PhD thesis, 2023

Optimal Security for Keyed Hash Functions: Avoiding Time-Space Tradeoffs for Finding Collisions.

Cody Freitag, Ashrujit Ghoshal, Ilan Komargodski

Proceedings of the Advances in Cryptology - EUROCRYPT 2023, 2023

The Query-Complexity of Preprocessing Attacks.

Ashrujit Ghoshal, Stefano Tessaro

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

2022

Hiding in Plain Sight: Memory-Tight Proofs via Randomness Programming.

Ashrujit Ghoshal, Riddhi Ghosal, Joseph Jaeger, Stefano Tessaro

Proceedings of the Advances in Cryptology - EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, Trondheim, Norway, May 30, 2022

On Time-Space Tradeoffs for Bounded-Length Collisions in Merkle-Damgård Hashing.

Ashrujit Ghoshal, Ilan Komargodski

Proceedings of the Advances in Cryptology - CRYPTO 2022, 2022

Time-Space Tradeoffs for Sponge Hashing: Attacks and Limitations for Short Collisions.

Cody Freitag, Ashrujit Ghoshal, Ilan Komargodski

Proceedings of the Advances in Cryptology - CRYPTO 2022, 2022

2021

Tight State-Restoration Soundness in the Algebraic Group Model.

Ashrujit Ghoshal, Stefano Tessaro

Proceedings of the Advances in Cryptology - CRYPTO 2021, 2021

2020

On the Memory-Tightness of Hashed ElGamal.

Ashrujit Ghoshal, Stefano Tessaro

Proceedings of the Advances in Cryptology - EUROCRYPT 2020, 2020

The Memory-Tightness of Authenticated Encryption.

Ashrujit Ghoshal, Joseph Jaeger, Stefano Tessaro

Proceedings of the Advances in Cryptology - CRYPTO 2020, 2020

2018

Lightweight and Side-channel Secure 4 × 4 S-Boxes from Cellular Automata Rules.

Ashrujit Ghoshal, Rajat Sadhukhan, Sikhar Patranabis, Nilanjan Datta, Stjepan Picek, Debdeep Mukhopadhyay

IACR Trans. Symmetric Cryptol., 2018

Lightweight and Side-channel Secure 4x4 S-Boxes from Cellular Automata Rules.

Ashrujit Ghoshal, Rajat Sadhukhan, Sikhar Patranabis, Nilanjan Datta, Stjepan Picek, Debdeep Mukhopadhyay

IACR Cryptol. ePrint Arch., 2018

Template-Based Fault Injection Analysis of Block Ciphers.

Ashrujit Ghoshal, Sikhar Patranabis, Debdeep Mukhopadhyay

Proceedings of the Security, Privacy, and Applied Cryptography Engineering, 2018

2017

An Evaluation of Lightweight Block Ciphers for Resource-Constrained Applications: Area, Performance, and Security.

Rajat Sadhukhan, Sikhar Patranabis, Ashrujit Ghoshal, Debdeep Mukhopadhyay, Vishal Saraswat, Santosh Ghosh

J. Hardw. Syst. Secur., 2017

Several Masked Implementations of the Boyar-Peralta AES S-Box.

Ashrujit Ghoshal, Thomas De Cnudde

Proceedings of the Progress in Cryptology - INDOCRYPT 2017, 2017