Ritam Bhaumik

According to our database, Ritam Bhaumik authored at least 26 papers between 2015 and 2024.

Collaborative distances:

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

2024

BBB security for 5-round even-Mansour-based key-alternating Feistel ciphers.

Arghya Bhattacharjee, Ritam Bhaumik, Avijit Dutta, Mridul Nandi, Anik Raychaudhuri

Des. Codes Cryptogr., January, 2024

Mind the Bad Norms: Revisiting Compressed Oracle-based Quantum Indistinguishability Proofs.

Ritam Bhaumik, Benoît Cogliati, Jordan Ethan, Ashwin Jha

IACR Cryptol. ePrint Arch., 2024

Efficient Variants of TNT with BBB Security.

Ritam Bhaumik, Wonseok Choi, Avijit Dutta, Cuauhtemoc Mancillas López, Hrithik Nandi, Yaobin Shen

IACR Cryptol. ePrint Arch., 2024

The Committing Security of MACs with Applications to Generic Composition.

Ritam Bhaumik, Bishwajit Chakraborty, Wonseok Choi, Avijit Dutta, Jérôme Govinden, Yaobin Shen

IACR Cryptol. ePrint Arch., 2024

Universal Context Commitment without Ciphertext Expansion.

Arghya Bhattacharjee, Ritam Bhaumik, Chandranan Dhar

IACR Cryptol. ePrint Arch., 2024

Provably Secure Online Authenticated Encryption and Bidirectional Online Channels.

Arghya Bhattacharjee, Ritam Bhaumik, Daniel Collins, Mridul Nandi

IACR Cryptol. ePrint Arch., 2024

Block Cipher Doubling for a Post-Quantum World.

Ritam Bhaumik, André Chailloux, Paul Frixons, Bart Mennink, María Naya-Plasencia

IACR Commun. Cryptol., 2024

Indifferentiability of 3-Round Confusion-Diffusion Networks.

Ritam Bhaumik, Mridul Nandi, Sayantan Paul, Abishanka Saha

Proceedings of the Security and Cryptography for Networks - 14th International Conference, 2024

2023

Revisiting the Indifferentiability of the Sum of Permutations.

Aldo Gunsing, Ritam Bhaumik, Ashwin Jha, Bart Mennink, Yaobin Shen

IACR Cryptol. ePrint Arch., 2023

BBB PRP Security of the Lai-Massey Mode.

Ritam Bhaumik, Mohammad Amin Raeisi

IACR Cryptol. ePrint Arch., 2023

On Quantum Secure Compressing Pseudorandom Functions.

Ritam Bhaumik, Benoît Cogliati, Jordan Ethan, Ashwin Jha

IACR Cryptol. ePrint Arch., 2023

sfPAE: Towards More Efficient and BBB-secure AE From a Single Public Permutation.

Arghya Bhattacharjee, Ritam Bhaumik, Avijit Dutta, Eik List

IACR Cryptol. ePrint Arch., 2023

PAE: Towards More Efficient and BBB-Secure AE from a Single Public Permutation.

Arghya Bhattacharjee, Ritam Bhaumik, Avijit Dutta, Eik List

Proceedings of the Information and Communications Security - 25th International Conference, 2023

2022

Safely Doubling your Block Ciphers for a Post-Quantum World.

Ritam Bhaumik, André Chailloux, Paul Frixons, María Naya-Plasencia

IACR Cryptol. ePrint Arch., 2022

Offset-Based BBB-Secure Tweakable Block-ciphers with Updatable Caches.

Arghya Bhattacharjee, Ritam Bhaumik, Mridul Nandi

IACR Cryptol. ePrint Arch., 2022

A Sponge-Based PRF with Good Multi-user Security.

Arghya Bhattacharjee, Ritam Bhaumik, Mridul Nandi

IACR Cryptol. ePrint Arch., 2022

2021

Improved indifferentiability security proof for 3-round tweakable Luby-Rackoff.

Ritam Bhaumik, Mridul Nandi, Anik Raychaudhuri

Des. Codes Cryptogr., 2021

2020

QCB: Efficient Quantum-secure Authenticated Encryption.

Ritam Bhaumik, Xavier Bonnetain, André Chailloux, Gaëtan Leurent, María Naya-Plasencia, André Schrottenloher, Yannick Seurin

IACR Cryptol. ePrint Arch., 2020

2018

ZCZ - Achieving n-bit SPRP Security with a Minimal Number of Tweakable-block-cipher Calls.

Ritam Bhaumik, Eik List, Mridul Nandi

IACR Cryptol. ePrint Arch., 2018

2017

Turning Online Ciphers Off.

Elena Andreeva, Guy Barwell, Ritam Bhaumik, Mridul Nandi, Dan Page, Martijn Stam

IACR Trans. Symmetric Cryptol., 2017

Improved Security for OCB3.

Ritam Bhaumik, Mridul Nandi

IACR Cryptol. ePrint Arch., 2017

The Iterated Random Function Problem.

Ritam Bhaumik, Nilanjan Datta, Avijit Dutta, Nicky Mouha, Mridul Nandi

IACR Cryptol. ePrint Arch., 2017

2016

OleF: an Inverse-Free Online Cipher. An Online SPRP with an Optimal Inverse-Free Construction.

Ritam Bhaumik, Mridul Nandi

IACR Trans. Symmetric Cryptol., 2016

OleF: An Inverse-Free Online Cipher.

Ritam Bhaumik, Mridul Nandi

IACR Cryptol. ePrint Arch., 2016

2015

An Inverse-free Single-Keyed Tweakable Enciphering Scheme.

Ritam Bhaumik, Mridul Nandi

IACR Cryptol. ePrint Arch., 2015

Revisiting Turning Online Cipher Off.

Ritam Bhaumik, Mridul Nandi

IACR Cryptol. ePrint Arch., 2015