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Improved Linear Distinguishers for SNOW 2.0
[chapter]
2006
Lecture Notes in Computer Science
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In this paper we present new and more accurate estimates of the biases of the linear approximation of the FSM of the stream cipher SNOW 2.0. ...
to distinguish the output keystream of SNOW 2.0 of length 2 174 words from a truly random sequence with workload 2 174 . ...
Acknowledgements We wish to thank Jukka Valkonen for implementing all mask searches needed to complete this work and the Krypto project of the Finnish Defence Forces for making it possible. ...
doi:10.1007/11799313_10
fatcat:dx4zyytn4bcqxfauiaafkixu44
A Distinguishing Attack of SNOW 2.0 with Linear Masking Method
[chapter]
2004
Lecture Notes in Computer Science
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SNOW 2.0 was developed by Johansson and Ekdahl in 2002, as a modified version of SNOW 1.0. In this paper we present the application of linear (masking) attack to SNOW 2.0 stream cipher. ...
Our attack requires 2 225 output words (2 230 bits) and 2 225 steps of analysis to distinguish the output of SNOW 2.0 from a truly random bit sequence. ...
The Discussion Our evaluation confirmed that SNOW 2.0 is well improved. ...
doi:10.1007/978-3-540-24654-1_16
fatcat:nhchu6rks5cffmn7l5rztqmtwq
Fast Implementation of KCipher-2 for Software and Hardware
2014
IEICE transactions on information and systems
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It is listed as a CRYPTREC cryptographic algorithm for Japanese governmental use. It consists of two feedback shift registers and a non-linear function. ...
However, KCipher-2 is the fastest of the feasible algorithms, as SNOW 2.0 has been shown to have a security flaw. ...
SNOW 2.0 [26] 2 174 distinguishing SOSEMANUK [7] 2 148 linear HC-256 [27] 2 276.8 distinguishing Salsa20 [28] 2 224 related-cipher SNOW 3G † 2 320 guess-and-determine † this paper
Security Comparison ...
doi:10.1587/transinf.e97.d.43
fatcat:pacd55be4nbybizshdvxeho2ai
Comparing Large-unit and Bitwise Linear Approximations of SNOW 2.0 and SNOW 3G and Related Attacks
2021
IACR Transactions on Symmetric Cryptology
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for SNOW 2.0 and SNOW 3G. ...
In this paper, we study and compare the byte-wise and bitwise linear approximations of SNOW 2.0 and SNOW 3G, and present a fast correlation attack on SNOW 3G by using our newly found bitwise linear approximations ...
Acknowledgements We would like to thank all reviewers for providing valuable comments to the manuscript. ...
doi:10.46586/tosc.v2021.i2.71-103
fatcat:nhsec2ggifel7fzgl7u6hfuuta
A New Version of the Stream Cipher SNOW
[chapter]
2003
Lecture Notes in Computer Science
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In 2000, the stream cipher SNOW was proposed. A few attacks followed, indicating certain weaknesses in the design. In this paper we propose a new version of SNOW, called SNOW 2.0. ...
Design Differences from SNOW 1.0 In this section we highlight the differences between SNOW 2.0 and SNOW 1.0 and their expected security improvements. We start with the choice of feedback polynomial. ...
The unconditional XOR also seems to improve speed, by removing the possible branch prediction error in a pipelined processor. The FSM in SNOW 2.0 now takes two inputs. ...
doi:10.1007/3-540-36492-7_5
fatcat:6v6qeufxibhs3pdfgqo3dpubl4
The application of σ-LFSR in Key-Dependent Feedback Configuration for Word-Oriented Stream Ciphers
[article]
2021
arXiv
pre-print
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As a test case, we have applied this method on SNOW 2.0 and have studied its impact on resistance to various attacks. ...
In this paper, we propose and evaluate a method for generating key-dependent feedback configurations (KDFC) for σ-LFSRs. σ-LFSRs with such configurations can be applied to any stream cipher that uses a ...
Pillai, Department of Electrical Engineering, Indian Institute of Technology Bombay for his valuable guidance and Associate Prof. Gaurav Trivedi, Department of Electronics and Electrical ...
arXiv:2003.09381v2
fatcat:gad22zfc6jfuhadk7a7rhmgcey
Fast Correlation Attacks over Extension Fields, Large-Unit Linear Approximation and Cryptanalysis of SNOW 2.0
[chapter]
2015
Lecture Notes in Computer Science
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Our results have been verified by experiments on a small-scale version of SNOW 2.0. ...
., SNOW 2.0, SNOW 3G [6, 8] and Sosemanuk [2], aiming to combine the merits from the thoroughly studied LFSR theory with a fast implementation in software. ...
The application of our approaches to SNOW 2.0 is given in Section 5. The improved attack using finite field linear masks is described in Section 6 with the experimental results. ...
doi:10.1007/978-3-662-47989-6_31
fatcat:f3m35llwyjgavmwwlwtg7wfwte
Vectorized linear approximations for attacks on SNOW 3G
2020
IACR Transactions on Symmetric Cryptology
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SNOW 3G is a stream cipher designed in 2006 by ETSI/SAGE, serving in 3GPP as one of the standard algorithms for data confidentiality and integrity protection. ...
In this paper we derive vectorized linear approximations of the finite state machine in SNOW3G. ...
Acknowledgements We would like to thank all reviewers for providing valuable comments to the manuscript, and the Ericsson Research Data Center team for their help with compute resources that we used to ...
doi:10.46586/tosc.v2019.i4.249-271
fatcat:bdqdcouyejcefl2jtews7fm46e
Vectorized linear approximations for attacks on SNOW 3G
2020
IACR Transactions on Symmetric Cryptology
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SNOW 3G is a stream cipher designed in 2006 by ETSI/SAGE, serving in 3GPP as one of the standard algorithms for data confidentiality and integrity protection. ...
In this paper we derive vectorized linear approximations of the finite state machine in SNOW3G. ...
Acknowledgements We would like to thank all reviewers for providing valuable comments to the manuscript, and the Ericsson Research Data Center team for their help with compute resources that we used to ...
doi:10.13154/tosc.v2019.i4.249-271
dblp:journals/tosc/YangJM19
fatcat:qfiiwkhyovf3daxy6hojgw5y4i
Comparative Study of Vulnerabilities in LTE Cryptographic Algorithm
2018
International Journal of Computer Applications
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Even LTE has complex and a vigorous set of security mechanisms, but there is still need for improvement. ...
Long Term Evolution (LTE) is a standard for high-speed wireless communication for mobile and data terminals based on Global System for Mobile Communication (GSM) and Universal Mobile Telecommunications ...
Linear attacks-The report described general strategies for distinguishing attacks based on linear approximations and argued that they are most likely unsuccessful in building a distinguisher for SNOW3G ...
doi:10.5120/ijca2018916587
fatcat:claswkciwvcgxh4alvly6yqrni
Three Snakes in One Hole: The First Systematic Hardware Accelerator Design for SOSEMANUK with Optional Serpent and SNOW 2.0 Modes
2016
IEEE transactions on computers
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SNOW 2.0. ...
The best throughput achieved by the combined design is 67.84 Gbps for SOSEMANUK, 33.92 Gbps for SNOW 2.0 and 2.12 Gbps for Serpent. ...
S (3) eno,u → S (3)
eno,uu LFSR unrolling for SNOW 2.0 reduces the area efficiency for SOSEMANUK and improves the same for SNOW 2.0. ...
doi:10.1109/tc.2015.2435775
fatcat:23vkvsrpjjccjgpdkvbvnqvbxi
Algebraic Description and Simultaneous Linear Approximations of Addition in Snow 2.0
[chapter]
2008
Lecture Notes in Computer Science
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We apply these results to analyse the resistance of the stream cipher Snow 2.0 against algebraic attacks. ...
We show that the addition modulo 2 n can be partly or totally linearized when the output is fixed, and this for a large family of outputs. ...
Previous Work The best known attacks on Snow 2.0 are distinguishing attacks. ...
doi:10.1007/978-3-540-88625-9_22
fatcat:xidwkdttsjdttjbjkicue4tgku
SOSEMANUK: a fast software-oriented stream cipher
[article]
2008
arXiv
pre-print
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Sosemanuk aims at improv- ing SNOW 2.0 both from the security and from the efficiency points of view. Most notably, it uses a faster IV-setup procedure. ...
The Sosemanuk cipher uses both some basic design principles from the stream cipher SNOW 2.0 and some transformations derived from the block cipher SERPENT. ...
Acknowledgments The authors would like to thank Matt Robshaw for valuable comments. ...
arXiv:0810.1858v1
fatcat:767recg345h27jsr5cfor3tfjm
Cryptanalysis of Sosemanuk and SNOW 2.0 Using Linear Masks
[chapter]
2008
Lecture Notes in Computer Science
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We also mount a correlation attack on SNOW 2.0 with complexity 2 204.38 . ...
Sosemanuk is a software oriented stream cipher proposed by Berbain et al. to the eSTREAM call for stream cipher and has been selected in the final portfolio. ...
Though SNOW 2.0 is a highly reputed stream cipher, it is vulnerable to linear distinguishing attacks using linear masks [14, 15] . ...
doi:10.1007/978-3-540-89255-7_32
fatcat:ojtwtl2wfrgsnhcsj4hvz55a4e
Differential Attacks on Reduced-RoundSNOW 3G and SNOW 3G⊕
2020
IET Information Security
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Firstly, they show a distinguisher for 12-round SNOW 3G and 255 distinguishers for 13-round SNOW 3G ⊕ , respectively. ...
The stream cipher SNOW 3G is the core of the 3G Partnership Project (3GPP) for implementing a confidentiality algorithm and data integrity algorithm. ...
Acknowledgments The authors thank the anonymous reviewers for their helpful comments. ...
doi:10.1049/iet-ifs.2019.0478
fatcat:rgxiupmwkzc65pcpvkjm33mbie
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