Webential cryptanalysis of NLFSR-based cryptosystems. In the Sections 4, 5 and 6 this idea is refined and adapted to a specific analysis of the KATAN/KTANTAN family, Grain v1 and Grain-128. 2 Notation and Preliminaries In this paper F 2denotes the binary field and Fn the n-dimensional vector space over F 2. WebJan 1, 2024 · Conditional differential cryptanalysis on NFSR-based cryptosystems was first proposed by Knellwolf et al. in Asiacrypt 2010 and has been successfully used to attack …
An AEAD Variant of the Grain Stream Cipher SpringerLink
WebMar 21, 2006 · One of such stream ciphers Grain was recently proposed as a candidate for the European project ECRYPT in May, 2005. Grain uses the secret key of length 80 bits and its internal state is of size 160 bits. It was suggested as a fast and small primitive for efficient hardware implementation. WebWG and LEX are two stream ciphers submitted to eStream – the ECRYPT stream cipher project. In this paper, we point out security flaws in the resynchronization of these two ciphers. The resynchronization of WG is vulnerable to a differential attack. For WG with 80-bit key and 80-bit IV, 48 bits of the secret key can be recovered with about 231.3 chosen … northern sotho names
Some Insights into Differential Cryptanalysis of Grain v1
WebMar 17, 2024 · Abstract The fast correlation attack (FCA) is one of the most important cryptanalytic techniques against LFSR-based stream ciphers. In CRYPTO 2024, Todo et al. found a new property for the FCA and proposed a novel algorithm which was successfully applied to the Grain family of stream ciphers. WebSprout has a Grain-like structure and uses two 40-bit feedback shift registers (FSR). In comparison to traditional stream ciphers, Sprout uses the 80-bit key not only for … WebNov 1, 2024 · Abstract In this study, the authors construct two different distinguishers on Grain-v1 with 112 and 114 initialisation rounds. Their first distinguisher can distinguish Grain-v1 with 112 initialisation rounds from a uniform random source for 99% of the randomly chosen keys from full key space. northern sotho language