نتایج جستجو برای: estream

تعداد نتایج: 184  

Journal: :IACR Cryptology ePrint Archive 2009
Yun Tian Gongliang Chen Jianhua Li

eSTREAM called for new stream ciphers designed for niche areas such as exceptional performance in software and hardware where resources are restricted. This project provides an open platform to discuss these ciphers. Trivium is one of the promising new ciphers submitted to it. Until now, no attack has been successfully applied to it. This paper illustrates new design principles of stream cipher...

2014
Matt Henricksen Shinsaku Kiyomoto Jiqiang Lu

Authenticated encryption provides confidentiality and integrity in the same one-pass process, by computing a Message Authentication Code (MAC) at almost no cost over generating keystream. This is natively more efficient than providing confidentiality then authentication in separate passes. The argument as to whether compute MAC (on plaintext) then encrypt, encrypt then compute MAC (on ciphertex...

2009
Gautham Sekar Bart Preneel

The software-efficient stream cipher HC-256 was proposed by Wu at FSE 2004. Due to its impressive performance, the cipher was also a well-received entrant to the ECRYPT eSTREAM competition. The closely related stream cipher HC-128, also designed by Wu, went on to find a place in the final portfolio of the eSTREAM contest. The cipher HC-256 is word-oriented, with 32 bits in each word, and uses a...

Journal: :CoRR 2006
María Naya-Plasencia

This paper presents two attacks against Achterbahn-128/80, the last version of one of the stream cipher proposals in the eSTREAM project. The attack against the 80-bit variant, Achterbahn-80, has complexity 2^{56.32}. The attack against Achterbahn-128 requires 2^{75.4} operations and 2^{61} keystream bits. These attacks are based on an improvement of the attack due to Hell and Johansson against...

Journal: :IACR Cryptology ePrint Archive 2013
Subhadeep Banik Subhamoy Maitra

In this paper we present a differential fault attack on the stream cipher MICKEY 2.0 which is in eStream’s hardware portfolio. While fault attacks have already been reported against the other two eStream hardware candidates Trivium and Grain, no such analysis is known for MICKEY. Using the standard assumptions for fault attacks, we show that by injecting around 2 faults and performing 2 computa...

2006
Ali Doganaksoy Faruk Göloglu

We derive recurrences for counting the number a(n, r) of sequences of length n with Lempel-Ziv complexity r, which has important applications, for instance testing randomness of binary sequences. We also give algorithms to compute these recurrences. We employed these algorithms to compute a(n, r) and expected value, EPn, of number of patterns of a sequence of length n, for relatively large n. W...

2006
Joo Yeon Cho Josef Pieprzyk

We present a distinguishing attack on NLS which is one of the stream ciphers submitted to the eSTREAM project. We build the distinguisher by using linear approximations of both the non-linear feedback shift register (NFSR) and the nonlinear filter function (NLF). Since the bias of the distinguisher depends on the Konst value, which is a key-dependent word, we estimate the average bias to be aro...

2009
Haina Zhang Xiaoyun Wang

CryptMT v3 is a stream cipher submitted to eStream project, and has entered the third evaluation phase. Any attack has not been found until now. In this paper, we mainly discuss the security of the state initialization process of CryptMT v3. For the key and IV setup function fK , we can construct a probabilistic testing algorithm A fK with a distinguishing probability 1, which indicates that fo...

2006
Paris Kitsos

In this paper the FPGA implementations for four stream ciphers are presented. The two stream ciphers, MUGI and SNOW 2.0 are recently adopted by the International Organization for Standardization ISO/IEC 18033-4:2005 standard. The other two stream ciphers, MICKEY 128 and TRIVIUM have been submitted and are under consideration for the eSTREAM, the ECRYPT (European Network of Excellence for Crypto...

Journal: :IACR Cryptology ePrint Archive 2014
Tian Tian Wen-Feng Qi

Nonlinear feedback shift registers (NFSRs) are an important type of sequence generators used for building stream ciphers. The shift register used in Grain, one of eSTREAM finalists, is a cascade connection of two NFSRs, which is also known as nonlinear product-feedback shift registers proposed in 1970. This paper provides a series of algorithms to decompose a given NFSR into a cascade connectio...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید