HeW: AHash Function based on Lightweight Block Cipher FeW

Manoj Kumar; Dhananjoy Dey; Saibal K Pal; Anupama Panigrahi

doi:10.14429/dsj.67.10791

Manoj Kumar Scientific Analysis Group, Delhi - 110 054
Dhananjoy Dey Scientific Analysis Group, Delhi - 110 054
Saibal K Pal Scientific Analysis Group, Delhi - 110 054
Anupama Panigrahi Department of Mathematics, University of Delhi, Delhi - 110 007

DOI: https://doi.org/10.14429/dsj.67.10791

Keywords: Block cipher, FeW, Lightweight block cipher, Wide-pipe construction

Abstract

A new hash function HeW: A hash function based on light weight block cipher FeW is proposed in this paper. The compression function of HeW is based on block cipher FeW. It is believed that key expansion algorithm of block cipher slows down the performance of the overlying hash function. Thereby, block ciphers become a less favourable choice to design a compression function. As a countermeasure, we cut down the key size of FeW from 80-bit to 64-bit and provide a secure and efficient key expansion algorithm for the modified key size. FeW based compression function plays a vital role to enhance the efficiency of HeW. We test the hash output for randomness using the NIST statistical test suite and test the avalanche effect, bit variance and near collision resistance. We also give the security estimates of HeW against differential cryptanalysis, length extension attack, slide attack and rotational distinguisher.

Author Biographies

Manoj Kumar, Scientific Analysis Group, Delhi - 110 054

Mr Manoj Kumar received M.Phil form CCS University, Meerut, in 2004 and pursuing PhD from Department of Mathematics, University of Delhi. He is currently working as a Scientist in Scientific Analysis Group, DRDO. His research area includes design and analysis of block ciphers.

In current study, his contributions are in design and analysis of the hash function and implementation of various tests.

Dhananjoy Dey, Scientific Analysis Group, Delhi - 110 054

Dr Dhananjoy Dey received his PhD form Jadhavpur University. He is currently working as a Scientist in Scientific Analysis Group, DRDO. His areas of interest are design and analysis of hash functions.

In current study, his contributions are in overall design sketch and various tests like bit variance test, length extension attack and near collision resistance.

Saibal K Pal, Scientific Analysis Group, Delhi - 110 054

Dr Saibal K. Pal received his PhD form University of Delhi. He is currently working as a Scientist ‘G’ in Scientific Analysis Group, DRDO. His interest areas include multimedia and network security, computational intelligence and data mining.

In current study, he has guided at various design stages and provided his inputs to improve the design.

Anupama Panigrahi, Department of Mathematics, University of Delhi, Delhi - 110 007

Dr Anupama Panigrahi received her PhD from Allahabad University (HRI). She has been post-doctoral fellow in ISI, Kolkata. She is currently working as an Assistant Professor in Department of Mathematics, University of Delhi. Her main research areas include number theory and elliptic curve cryptography.

In current study, she contributed to provide the overall guidance and critical suggestions in analysis of the scheme.