Dr. Dibyendu Roy | Faculty Profile

Cryptology

2016

PhD

Mathematics (Cryptology)

Indian Institute of Technology Kharagpur
2011

M.Sc.

Mathematics

Indian Institute of Technology Kharagpur
2009

B.Sc.

Mathematics

Ramakrishna Mission Residential College, Narendrapur, University of Calcutta

Role	Organisation	Period
Assistant Professor	Indian Institute of Information Technology Vadodara	2020 (Dec) - Till Date
Postdoctoral-Fellow-cum-Lecturer	Indian Statistical Institute, Kolkata	2020 (Oct) - 2020 (Dec)
Visiting Scientist	Indian Statistical Institute, Kolkata	2020 (Jan) - 2020 (Sep)
Consultant	ERTL(E), STQC Dte., Kolkata, India	2018-2019
Postdoctoral Fellow	National Institute of Science Education and Research Bhubaneswar, India	2016-2018

Design and Implementation of a Cryptographically Secure Random Number Generator

Role: PI

Funding: Indian Space Research Organisation, Govt. of India (26.65L)

2 Yrs

Ongoing

Design and Analysis of Physically Unclonable Functions

Role: PI

Funding: National Board for Higher Mathematics, DAE, Govt. of India (4.28L)

3 Yrs

Ongoing

Cryptanalysis on Modern Stream Ciphers

Role: PI

Funding: IIIT Vadodara (2L)

3 Yrs

Ongoing

Design and Analysis of Fully Homomorphic Encryption (FHE) Supported Stream Ciphers

Role: PI

Funding: Anusandhan National Research Foundation, DST, Govt. of India (14.47L)

2 Yrs

Completed

R Radheshwar, Dibyendu Roy and Pantelimon Stanica

Multipath PA-PUFs Generate all Boolean Functions

Designs, Codes and Cryptography, 2026, 94/5/104

https://doi.org/10.1007/s10623-026-01861-7
Journal
Animesh Roy, Dibyendu Roy and Pantelimon Stanica

On Combining Arbiter Based PUFs

Cryptography and Communications, 2025, 17/493-510

https://doi.org/10.1007/s12095-024-00769-0
Journal
Meenakshi Kansal, Animesh Roy, Dibyendu Roy, Srinivasu Bodapati and Anupam Chattopad- hyay

Priority Arbiter PUF: Analysis

Discrete Applied Mathematics, 2024, 356/71-95

https://doi.org/10.1016/j.dam.2024.05.013
Journal
Pierrick Meaux and Dibyendu Roy

Theoretical differential fault attacks on FLIP and FiLIP

Cryptography and Communications, 2024, 16/4/721-744

https://doi.org/10.1007/s12095-024-00698-y
Journal
R Radheshwar, Meenakshi Kansal, Pierrick Meaux and Dibyendu Roy

Differential Fault Attack on Rasta and FiLIPDSM

IEEE Transactions on Computers, 2023, 72/8/2418-2425

10.1109/TC.2023.3244629
Journal
Ravi Anand, Dibyendu Roy and Santanu Sarkar

Some results on lightweight stream ciphers Fountain v1 & Lizard

Advances in Mathematics of Communications, 2023, 17/2/298-319

https://10.3934/amc.2020128
Journal
Dibyendu Roy, Deepak Kumar Dalai

An Observation of Non-randomness in NFSR Based Stream Ciphers with Reduced Initialization Round

Journal of Hardware and Systems Security, 2021, 5/89-102

https://doi.org/10.1007/s41635-021-00113-5
Journal
Dibyendu Roy, Bhagwan Bathe and Subhamoy Maitra

Differential Fault Attack on - Kreyvium & FLIP

IEEE Transactions on Computers, 2021, 70/12/2161-2167

10.1109/TC.2020.3038236
Journal
Chandra Sekhar Mukherjee, Subhamoy Maitra, Vineet Gaurav and Dibyendu Roy

Preparing Dicke States on a Quantum Computer

IEEE Transactions on Quantum Engineering, 2020, 1/1-17

10.1109/TQE.2020.3041479
Journal
Subhamoy Maitra, Bimal Mandal, Thor Martinsen, Dibyendu Roy and Pantelimon Stanica

Anal- ysis on Boolean function in a restricted (biased) domain

IEEE Transactions on Information Theory, 2020, 66/1219–1231

10.1109/TIT.2019.2932739
Journal
Abhishek Kesarwani, Dibyendu Roy, Santanu Sarkar and Willi Meier

New cube distinguishers on NFSR-based stream ciphers

Designs, Codes and Cryptography, 2020, 88/173–199

https://doi.org/10.1007/s10623-019-00674-1
Journal
Deepak Kumar Dalai, Subhamoy Maitra, Santu Pal and Dibyendu Roy

Distinguisher & Non- randomness of Grain-v1 for 112, 114 & 116 initialization rounds with multiple-bit difference in IVs

IET Information Security, 2019, 13/603–613

https://doi.org/10.1049/iet-ifs.2018.5276
Journal
Dibyendu Roy, Pratish Datta and Sourav Mukhopadhyay

Algebraic cryptanalysis of stream ci- phers using decomposition of Boolean function

Journal of Applied Mathematics and Computing, 2015, 49/397–417

https://doi.org/10.1007/s12190-014-0845-7
Journal
R Radheshwar and Dibyendu Roy

Differential Fault Attack on ChaosForge

In the proceeding of 6th International Conference on Recent Advances in Information Technology (RAIT) 2025, 2025

10.1109/RAIT65068.2025.11089261
Conference
Bhagwan Bathe, Siddhartha Tiwari, Ravi Anand, Dibyendu Roy, Subhamoy Maitra

Differential Fault Attack on Espresso

In the proceeding of 22nd edition of International Conference on Cryptology in India (Indocrypt 2021), 2021

https://doi.org/10.1007/978-3-030-92518-5_13
Conference
Animesh Roy and Dibyendu Roy and Subhamoy Maitra

How do the Arbiter PUFs Sample the Boolean Function Class

In the proceeding of 28th Edition of Selected Areas in Cryptography (SAC 2021), 2021

https://doi.org/10.1007/978-3-030-99277-4_6
Conference
Akhilesh Anilkumar Siddhanti, Srinivasu Bodapati, Anupam Chattopadhyay, Subhamoy Maitra, Dibyendu Roy and Pantelimon Stanica

Analysis of the Strict Avalanche Criterion in variants of Arbiter-based Physically Unclonable Functions

In the Proceeding of the 20th International Conference on Cryptology in India (Indocrypt 2019), 2019

https://doi.org/10.1007/978-3-030-35423-7_28
Conference
Debajyoti Bera, Subhamoy Maitra, Dibyendu Roy and Pantelimon Stanica

Limitation of the BLR testing in estimating nonlinearity

WCC 2019: The Eleventh International Workshop on Coding and Cryptography, 2019

https://www.lebesgue.fr/sites/default/files/proceedings_WCC/WCC_2019_paper_50.pdf
Conference
Subhamoy Maitra, Bimal Mandal, Thor Martinsen, Dibyendu Roy and Pantelimon Stanica

Tools in analysing linear approximation for Boolean functions related to FLIP

In the Proceeding of the 19th International Conference on Cryptology in India (Indocrypt 2018), 2018

https://doi.org/10.1007/978-3-030-05378-9_16
Conference
Deepak Kumar Dalai and Dibyendu Roy

An Observation of Non-randomness in the KSA of Grain family of stream ciphers

In the Proceeding of the 8th International Conference on Security, Privacy, and Applied Cryptography Engineering (SPACE 2018), 2018

https://doi.org/10.1007/978-3-030-05072-6_1
Conference
Deepak Kumar Dalai and Dibyendu Roy

A state recovery attack on ACORN-v1 and ACORN- v2

In the Proceeding of the 11th International Conference on Network and System Security (NSS 2017), 2017

https://doi.org/10.1007/978-3-319-64701-2_24
Conference
Dibyendu Roy, Sourav Mukhopadhyay

A deterministic approach for finding cube variables for cube attack

In 12th International Conference on Information Security and Cryp- tology (Inscrypt 2016), 2016
Conference
Dibyendu Roy, Ankita Chaturvedi and Sourav Mukhopadhyay

New constructions of T-function

In the Proceeding of the 11th Information Security Practice and Experience Conference (ISPEC 2015), 2015

https://doi.org/10.1007/978-3-319-17533-1_27
Conference
Pratish Datta, Dibyendu Roy and Sourav Mukhopadhyay

A probabilistic algebraic attack on the Grain family of stream ciphers

In the Proceeding of the 8th International Conference on Network and System Security (NSS 2014), 2014

https://doi.org/10.1007/978-3-319-11698-3_46
Conference
Dibyendu Roy, Pratish Datta and Sourav Mukhopadhyay

A new variant of algebraic attack

In the Proceeding of the 2nd International Conference on Security in Computer Networks and Distributed Systems (SNDS 2014), 2014

https://doi.org/10.1007/978-3-642-54525-2_19
Conference

Title	Authors	Publisher	Year	ISBN	Type
Design & Cryptanalysis of ZUC: A Stream Cipher in Mobile Telephony	Chandra Sekhar Mukherjee, Dibyendu Roy and Subhamoy Maitra	Springer	2021	978-981-33-4881-3	Authored

Scholar	Topic	Degree	Year	Status
R Radheshwar	Cryptology	PhD	2022	Ongoing
Notan Roy	Cryptology	PhD	2024	Ongoing
Rajkumar Vipulbhai Nonghanvadara	Cryptology	PhD	2025	Ongoing

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