Practical security analysis of a quantum stream cipher by the Yuen 2000 protocol

2007 ◽  
Vol 76 (3) ◽  
Author(s):  
Osamu Hirota
Keyword(s):  
Stream Cipher ◽  
Security Analysis ◽  
Practical Security

scholarly journals Security analysis of linearly filtered NLFSRs

2013 ◽  
Vol 7 (4) ◽  
pp. 313-332 ◽  
Author(s):  
Mohammad Ali Orumiehchiha ◽  
Josef Pieprzyk ◽  
Ron Steinfeld ◽  
Harry Bartlett
Keyword(s):  
Linear Combination ◽  
Mobile Communication ◽  
Stream Cipher ◽  
High Efficiency ◽  
Security Analysis ◽  
Linear Feedback ◽  
Attractive Feature ◽  
Key Recovery ◽  
Distinguishing Attack ◽  
Feedback Shift Register

Abstract. Non-linear feedback shift register (NLFSR) ciphers are cryptographic tools of choice of the industry especially for mobile communication. Their attractive feature is a high efficiency when implemented in hardware or software. However, the main problem of NLFSR ciphers is that their security is still not well investigated. The paper makes a progress in the study of the security of NLFSR ciphers. In particular, we show a distinguishing attack on linearly filtered NLFSR (or LF-NLFSR) ciphers. We extend the attack to a linear combination of LF-NLFSRs. We investigate the security of a modified version of the Grain stream cipher and show its vulnerability to both key recovery and distinguishing attacks.

scholarly journals Security Analysis of Regional Integrated Energy System Integrating Energy Storage

2021 ◽  
Vol 257 ◽  
pp. 01006
Author(s):  
Kaicheng Liu ◽  
Ying Guo ◽  
Dan Wang ◽  
Dezhi Li ◽  
Guixiong He
Keyword(s):  
Energy Storage ◽  
Security Analysis ◽  
System Security ◽  
Energy System ◽  
Improve Energy Efficiency ◽  
Energy Hub ◽  
Integrated Energy System ◽  
Security Region ◽  
The Impact ◽  
Practical Security

Regional integrated energy system (RIES) can realize multi-energy conversion and complementation so as to improve energy efficiency, which also brings more security risks. The regional integrated energy system security region (RIESSR) is a security analysis method to describe the safe area for the operating points of RIES based on the N-1 guideline. As a controllable device, energy storage (ES) which is installed in the energy hub (EH) plays an important role in improving system security. Therefore, this paper establishes the model of practical security region of RIES integrating energy storage, and studies the impact of ES on total supply capability (TSC) and practical security boundary. Finally, a specific case is set to simulate and verify the model. By comparing the scenario with ES and the scenario without ES, it can be seen that the solution result of TSC increases and the security region extends across quadrant when the RIES is integrated with ES system. The capacity and location of the ES also impact on TSC and RIESSR.

scholarly journals Implementation of super H-antimagic total graph on establishing stream cipher

2019 ◽  
Vol 3 (1) ◽  
pp. 14
Author(s):  
Antonius Cahya Prihandoko ◽  
D. Dafik ◽  
Ika Hesti Agustin
Keyword(s):  
Stream Cipher ◽  
Security Analysis ◽  
Second Step ◽  
Total Graph ◽  
Cryptographic System

This paper is aimed to study the use of super (<em>a, d</em>)-<em>H</em> antimagic total graph on generating encryption keys that can be used to establish a stream cipher. Methodology to achieve this goal was undertaken in three steps. First of all the existence of super (<em>a, d</em>)-<em>H</em>-antimagic total labeling was proven. At the second step, the algorithm for utilizing the labeling to construct a key stream was developed, and finally, the mechanism for applying the key to establish a stream cipher was constructed. As the result, according to the security analysis, it can be shown that the developed cryptographic system achieve a good security.

scholarly journals The practical security and performance analysis of the quantum data stream cipher system by the αη protocol

2012 ◽  
Vol 61 (8) ◽  
pp. 080301
Author(s):  
Lu Yuan ◽  
Huang Peng ◽  
Zhu Jun ◽  
Dai Wen-Chao ◽  
Zeng Gui-Hua
Keyword(s):  
Performance Analysis ◽  
Data Stream ◽  
Stream Cipher ◽  
And Performance ◽  
Practical Security

scholarly journals Practical Security Analysis of Reference Pulses for Continuous-Variable Quantum Key Distribution

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Wei Zhao ◽  
Ronghua Shi ◽  
Duan Huang
Keyword(s):  
Quantum Key Distribution ◽  
Beam Splitter ◽  
Security Analysis ◽  
Key Distribution ◽  
Continuous Variable ◽  
Excess Noise ◽  
Secret Key ◽  
Bayesian Algorithm ◽  
Robustness To Noise ◽  
Practical Security

AbstractBy manipulating the reference pulses amplitude, a security vulnerability is caused by self-reference continuous-variable quantum key distribution. In this paper, we formalize an attack strategy for reference pulses, showing that the proposed attack can compromise the practical security of CVQKD protocol. In this scheme, before the beam splitter attack, Eve intercepts the reference pulses emitted by Alice, using Bayesian algorithm to estimate phase shifts. Subsequently, other reference pulses are re-prepared and resubmitted to Bob. In simulations, Bayesian algorithm effectively estimates the phase drifts and has the high robustness to noise. Therefore, the eavesdropper can bias the excess noise due to the intercept-resend attack and the beam splitter attack. And Alice and Bob believe that their excess noise is below the null key threshold and can still share a secret key. Consequently, the proposed attack shows that its practical security can be compromised by transmitting the reference pulses in the continuous-variable quantum key distribution protocol.

Practical security analysis against the Trojan-horse attacks on fiber-based phase-coding QKD system in the wide spectral range

2021 ◽  
Author(s):  
Ivan S. Sushchev ◽  
Diana M. Guzairova ◽  
Andrey N. Klimov ◽  
Dmitriy A. Dvoretskiy ◽  
Sergey A. Bogdanov ◽  
...  
Keyword(s):  
Spectral Range ◽  
Security Analysis ◽  
Trojan Horse ◽  
Wide Spectral Range ◽  
Phase Coding ◽  
Practical Security
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