Modern day lightweight block ciphers provide powerful encryption methods for securing IoT communication data. Tiny digital devices exchange private data which the individual users might not be willing to get disclosed. On other hand, adversaries try their level best capture this The first step towards is identify scheme. This work an effort construct a distinguisher cipher used in encrypting tr...

This article discusses the security of McEliece-like encryption schemes using subspace subcodes Reed–Solomon codes, i.e. codes over ${\mathbb {F}_{q^{m}}}$ whose entries lie in a ...

In this paper we construct a chosen-key distinguisher and a related-key attack on the full 256-bit key AES. We define a notion of differential q-multicollision and show that for AES-256 q-multicollisions can be constructed in time q · 2 and with negligible memory, while we prove that the same task for an ideal cipher of the same block size would require at least O(q · 2 q−1 q+1 ) time. Using si...

In this paper, we present an efficient cryptanalysis of the socalled HM cryptosystem which was published at Asiacrypt’1999, and one perturbed version of HM. Until now, this scheme was exempt from cryptanalysis. We first present a distinguisher which uses a differential property of the public key. This distinguisher permits to break one perturbed version of HM. After that, we describe a practica...

In this paper we present new fundamental properties of SPNs. These properties turn out to be particularly useful in the adaptive chosen ciphertext/plaintext setting and we show this by introducing for the first time key-independent yoyo-distinguishers for 3to 5-rounds of AES. All of our distinguishers beat previous records and require respectively 3, 4 and 2 data and essentially zero computatio...

The term indistinguishability amplification refers to a setting where a certain construction combines two (or more) cryptographic primitives of the same type to improve their indistinguishability from an ideal primitive. Various constructions achieving this property have been studied, both in the information-theoretic and computational setting. In the former, a result due to Maurer, Pietrzak an...

In this paper we construct a chosen-key distinguisher and a related-key attack on the full 256-bit key AES. We define a notion of differential q-multicollision and show that for AES-256 q-multicollisions can be constructed in time q ·2 and with negligible memory, while we prove that the same task for an ideal cipher of the same block size would require at least O(q · 2 q−1 q+1 ) time. Using sim...

The success rate is the classical metric for evaluating the performance of side-channel attacks. It is generally computed empirically from measurements for a particular device or using simulations. Closedform expressions of success rate are desirable because they provide an explicit functional dependence on relevant parameters such as number of measurements and signal-to-noise ratio which help ...

Rijndael is one of the ve candidate blockciphers selected by NIST for the nal phase of the AES selection process. The best attack of Rijndael so far is due to the algorithm designers ; this attack is based upon the existence of an eÆcient distinguisher between 3 Rijndael inner rounds and a random permutation, and it is limited to 6 rounds for each of the three possible values of the keysize par...