Improved Related-key Attack against Recent Lightweight Block Cipher PRINCE

A related key impossible differential attack against 22 rounds of the lightweight block cipher LBlock

Two Kinds of Biclique Attacks on Lightweight Block Cipher PRINCE

Inspired by the paper [10], using better differential characteristics in the biclique construction, we give another balanced biclique attack on full rounds PRINCE with the lower complexity in this paper. Our balanced biclique attack has 62.67 2 computational complexity and 32 2 data complexity. Furthermore, we first illustrate a star-based biclique attack on full rounds PRINCE cipher in this pa...

Related-Key Boomerang Attack on Block Cipher SQUARE

Square is 8-round SPN structure block cipher and its round function and key schedule have been slightly modified to design building blocks of Rijndael. Key schedule of Square is simple and efficient but fully affine, so we apply a related-key attack on it. We find a 3-round related-key differential trail with probability 2−28, which have zero differences both on its input and output states, and...

Related-Key Rectangle Attack on Round-reduced Khudra Block Cipher

Khudra is a block cipher proposed in the SPACE’2014 conference, whose main design goal is to achieve suitability for the increasingly popular Field Programmable Gate Array (FPGA) implementation. It is an 18-round lightweight cipher based on recursive Feistel structure, with a 64-bit block size and 80-bit key size. In this paper, we compute the minimum number of active F -functions in differenti...

Differential Fault Attack on the PRINCE Block Cipher

PRINCE is a new lightweight block cipher proposed at the ASIACRYPT’2012 conference. In this paper two observations on the linear layer of the cipher are presented. Based on the observations a differential fault attack is applied to the cipher under a random nibblelevel fault model. The attack uniquely determines the 128-bit key of the cipher using less than 7 fault injections averagely. In the ...