Ritam Bhaumik

49 papers C 1Misc 2Journal 32Unranked 14
YearRankTypeTitle / Venue / Authors
2026 J jnl
Breaking and Fixing MacaKey.
IACR Trans. Symmetric Cryptol.
Ritam Bhaumik, Bishwajit Chakraborty, Chandranan Dhar
2026 J jnl
How to Build a Short-Input Random Oracle from Public Random Permutations.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Nilanjan Datta, Avijit Dutta, Ashwin Jha, Sougata Mandal, Bart Mennink, Hrithik Nandi, Yaobin Shen
2025 J jnl
A Note on Feedback-PRF Mode of KDF from NIST SP 800-108.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Avijit Dutta, Tetsu Iwata, Ashwin Jha, Kazuhiko Minematsu, Mridul Nandi, Yu Sasaki, Meltem Sönmez Turan, Stefano Tessaro
2025 — conf
Cryptographic Treatment of Key Control Security - In Light of NIST SP 800-108.
CRYPTO (5)
Ritam Bhaumik, Avijit Dutta, Akiko Inoue, Tetsu Iwata, Ashwin Jha, Kazuhiko Minematsu, Mridul Nandi, Yu Sasaki, Meltem Sönmez Turan, Stefano Tessaro
2025 J jnl
Cryptographic Treatment of Key Control Security - In Light of NIST SP 800-108.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Avijit Dutta, Akiko Inoue, Tetsu Iwata, Ashwin Jha, Kazuhiko Minematsu, Mridul Nandi, Yu Sasaki, Meltem Sönmez Turan, Stefano Tessaro
2025 J jnl
Pencil: A Domain-Extended PRF with Full n-bit Security \\ for Strengthening GCM and More.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Jean Paul Degabriele
2025 — conf
Post-quantum Security of Key-Alternating Feistel Ciphers.
ASIACRYPT (1)
Jyotirmoy Basak, Ritam Bhaumik, Amit Kumar Chauhan, Ravindra Jejurikar, Ashwin Jha, Anandarup Roy, André Schrottenloher, Suprita Talnikar
2025 J jnl
Post-quantum Security of Key-Alternating Feistel Ciphers.
IACR Cryptol. ePrint Arch.
Jyotirmoy Basak, Ritam Bhaumik, Amit Kumar Chauhan, Ravindra Jejurikar, Ashwin Jha, Anandarup Roy, André Schrottenloher, Suprita Talnikar
2024 J jnl
BBB Secure Arbitrary Length Tweak TBC from n-bit Block Ciphers.
IACR Cryptol. ePrint Arch.
Arghya Bhattacharjee, Ritam Bhaumik, Nilanjan Datta, Avijit Dutta, Sougata Mandal
2024 J jnl
BBB security for 5-round even-Mansour-based key-alternating Feistel ciphers.
Des. Codes Cryptogr.
Arghya Bhattacharjee, Ritam Bhaumik, Avijit Dutta, Mridul Nandi, Anik Raychaudhuri
2024 J jnl
Block Cipher Doubling for a Post-Quantum World.
IACR Commun. Cryptol.
Ritam Bhaumik, André Chailloux, Paul Frixons, Bart Mennink, María Naya-Plasencia
2024 J jnl
Building a BBB Pseudorandom Permutation using Lai-Massey Networks.
IACR Commun. Cryptol.
Ritam Bhaumik, Mohammad Amin Raeisi
2024 — conf
Efficient Variants of TNT with BBB Security.
ProvSec (2)
Ritam Bhaumik, Wonseok Choi, Avijit Dutta, Cuauhtemoc Mancillas López, Hrithik Nandi, Yaobin Shen
2024 J jnl
Efficient Variants of TNT with BBB Security.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Wonseok Choi, Avijit Dutta, Cuauhtemoc Mancillas López, Hrithik Nandi, Yaobin Shen
2024 — conf
Indifferentiability of 3-Round Confusion-Diffusion Networks.
SCN (2)
Ritam Bhaumik, Mridul Nandi, Sayantan Paul, Abishanka Saha
2024 — conf
Mind the Bad Norms - Revisiting Compressed Oracle-Based Quantum Indistinguishability Proofs.
ASIACRYPT (9)
Ritam Bhaumik, Benoît Cogliati, Jordan Ethan, Ashwin Jha
2024 J jnl
Mind the Bad Norms: Revisiting Compressed Oracle-based Quantum Indistinguishability Proofs.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Benoît Cogliati, Jordan Ethan, Ashwin Jha
2024 — conf
Provably Secure Online Authenticated Encryption and Bidirectional Online Channels.
SAC (2)
Arghya Bhattacharjee, Ritam Bhaumik, Daniel Collins, Mridul Nandi
2024 J jnl
Provably Secure Online Authenticated Encryption and Bidirectional Online Channels.
IACR Cryptol. ePrint Arch.
Arghya Bhattacharjee, Ritam Bhaumik, Daniel Collins, Mridul Nandi
2024 — conf
The Committing Security of MACs with Applications to Generic Composition.
CRYPTO (4)
Ritam Bhaumik, Bishwajit Chakraborty, Wonseok Choi, Avijit Dutta, Jérôme Govinden, Yaobin Shen
2024 J jnl
The Committing Security of MACs with Applications to Generic Composition.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Bishwajit Chakraborty, Wonseok Choi, Avijit Dutta, Jérôme Govinden, Yaobin Shen
2024 J jnl
Universal Context Commitment without Ciphertext Expansion.
IACR Cryptol. ePrint Arch.
Arghya Bhattacharjee, Ritam Bhaumik, Chandranan Dhar
2023 J jnl
BBB PRP Security of the Lai-Massey Mode.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Mohammad Amin Raeisi
2023 — conf
On Quantum Secure Compressing Pseudorandom Functions.
ASIACRYPT (3)
Ritam Bhaumik, Benoît Cogliati, Jordan Ethan, Ashwin Jha
2023 J jnl
On Quantum Secure Compressing Pseudorandom Functions.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Benoît Cogliati, Jordan Ethan, Ashwin Jha
2023 C conf
PAE: Towards More Efficient and BBB-Secure AE from a Single Public Permutation.
ICICS
Arghya Bhattacharjee, Ritam Bhaumik, Avijit Dutta, Eik List
2023 — conf
Revisiting the Indifferentiability of the Sum of Permutations.
CRYPTO (3)
Aldo Gunsing, Ritam Bhaumik, Ashwin Jha, Bart Mennink, Yaobin Shen
2023 J jnl
Revisiting the Indifferentiability of the Sum of Permutations.
IACR Cryptol. ePrint Arch.
Aldo Gunsing, Ritam Bhaumik, Ashwin Jha, Bart Mennink, Yaobin Shen
2023 J jnl
sfPAE: Towards More Efficient and BBB-secure AE From a Single Public Permutation.
IACR Cryptol. ePrint Arch.
Arghya Bhattacharjee, Ritam Bhaumik, Avijit Dutta, Eik List
2022 Misc conf
A Sponge-Based PRF with Good Multi-user Security.
SAC
Arghya Bhattacharjee, Ritam Bhaumik, Mridul Nandi
2022 J jnl
A Sponge-Based PRF with Good Multi-user Security.
IACR Cryptol. ePrint Arch.
Arghya Bhattacharjee, Ritam Bhaumik, Mridul Nandi
2022 Misc conf
Offset-Based BBB-Secure Tweakable Block-ciphers with Updatable Caches.
INDOCRYPT
Arghya Bhattacharjee, Ritam Bhaumik, Mridul Nandi
2022 J jnl
Offset-Based BBB-Secure Tweakable Block-ciphers with Updatable Caches.
IACR Cryptol. ePrint Arch.
Arghya Bhattacharjee, Ritam Bhaumik, Mridul Nandi
2022 J jnl
Safely Doubling your Block Ciphers for a Post-Quantum World.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, André Chailloux, Paul Frixons, María Naya-Plasencia
2021 J jnl
Improved indifferentiability security proof for 3-round tweakable Luby-Rackoff.
Des. Codes Cryptogr.
Ritam Bhaumik, Mridul Nandi, Anik Raychaudhuri
2021 — conf
QCB: Efficient Quantum-Secure Authenticated Encryption.
ASIACRYPT (1)
Ritam Bhaumik, Xavier Bonnetain, André Chailloux, Gaëtan Leurent, María Naya-Plasencia, André Schrottenloher, Yannick Seurin
2020 J jnl
QCB: Efficient Quantum-secure Authenticated Encryption.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Xavier Bonnetain, André Chailloux, Gaëtan Leurent, María Naya-Plasencia, André Schrottenloher, Yannick Seurin
2018 — conf
ZCZ - Achieving n-bit SPRP Security with a Minimal Number of Tweakable-Block-Cipher Calls.
ASIACRYPT (1)
Ritam Bhaumik, Eik List, Mridul Nandi
2018 J jnl
ZCZ - Achieving n-bit SPRP Security with a Minimal Number of Tweakable-block-cipher Calls.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Eik List, Mridul Nandi
2017 — conf
Improved Security for OCB3.
ASIACRYPT (2)
Ritam Bhaumik, Mridul Nandi
2017 J jnl
Improved Security for OCB3.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Mridul Nandi
2017 — conf
The Iterated Random Function Problem.
ASIACRYPT (2)
Ritam Bhaumik, Nilanjan Datta, Avijit Dutta, Nicky Mouha, Mridul Nandi
2017 J jnl
The Iterated Random Function Problem.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Nilanjan Datta, Avijit Dutta, Nicky Mouha, Mridul Nandi
2017 J jnl
Turning Online Ciphers Off.
IACR Trans. Symmetric Cryptol.
Elena Andreeva, Guy Barwell, Ritam Bhaumik, Mridul Nandi, Dan Page, Martijn Stam
2016 J jnl
OleF: An Inverse-Free Online Cipher.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Mridul Nandi
2016 J jnl
OleF: an Inverse-Free Online Cipher. An Online SPRP with an Optimal Inverse-Free Construction.
IACR Trans. Symmetric Cryptol.
Ritam Bhaumik, Mridul Nandi
2015 — conf
An Inverse-Free Single-Keyed Tweakable Enciphering Scheme.
ASIACRYPT (2)
Ritam Bhaumik, Mridul Nandi
2015 J jnl
An Inverse-free Single-Keyed Tweakable Enciphering Scheme.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Mridul Nandi
2015 J jnl
Revisiting Turning Online Cipher Off.
IACR Cryptol. ePrint Arch.
Ritam Bhaumik, Mridul Nandi