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stream ciphers

Construction of Stream Ciphers from Block Ciphers and their Security

Construction of Stream Ciphers from Block Ciphers and their Security

... As OFB is a synchronous stream cipher, changes to individual bits in the ciphertext do not affect the encryption of other parts of the ciphertext. This lack of error propagation is regarded as a disadvantage in ...

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Powers  of  Subfield  Polynomials   and  Algebraic  Attacks  on  Word-Based  Stream  Ciphers

Powers of Subfield Polynomials and Algebraic Attacks on Word-Based Stream Ciphers

... Gong (WG) family of stream ciphers. Our main contribution is to break WG-5, WG-7, WG-8 and WG-16 by combining results on the so-called spectral immunity (minimum distance of certain cyclic codes) with prop- ...

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Designing  Integrated  Accelerator  for  Stream  Ciphers  with  Structural  Similarities

Designing Integrated Accelerator for Stream Ciphers with Structural Similarities

... Though both HC-128 and RC4 are software stream ciphers, yet it is worthwhile to investigate their hardware accel- erator design for several reasons. First, for the system designer the software or hardware ...

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Fault  Analysis  on  the  Stream  Ciphers  LILI-128   and  Achterbahn

Fault Analysis on the Stream Ciphers LILI-128 and Achterbahn

... stream ciphers. We introduce a new type of fault attack on the LILI-128 stream cipher [3] by injecting fault in the clock control ...Achterbahn stream cipher [4] by injecting a single bit ...

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Stream  ciphers:  A  Practical  Solution  for  Efficient  Homomorphic-Ciphertext  Compression

Stream ciphers: A Practical Solution for Efficient Homomorphic-Ciphertext Compression

... classical stream ciphers, the internal-state size usually appears as a bottleneck because the overall size of the quantities to be stored highly influences the number of gates in the ...

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“Study, Analysis and Refinement in Throughput of Stream Ciphers for Data Security”

“Study, Analysis and Refinement in Throughput of Stream Ciphers for Data Security”

... different stream cipher which includes ZUC, SNOW 3G and RC4 offering dependable security services in Long Term Evolution networks ...of stream ciphers based on the performance parameter such as weak ...

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Practical approach in evaluating the resistance of stream ciphers against algebraic attacks

Practical approach in evaluating the resistance of stream ciphers against algebraic attacks

... Algebraic attacks on stream cipher are one of the popular cryptanalysis techniques in evaluating the resistances of stream ciphers. It was proposed by T. Courtois in 2002 and improved with the new ...

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Probabilistic  Signature  Based  Framework  for  Differential  Fault  Analysis  of  Stream  Ciphers

Probabilistic Signature Based Framework for Differential Fault Analysis of Stream Ciphers

... tamper-resilient stream cipher [11, Section 6]. Since the stream cipher designs are required to be very fast and need to be managed in a small hardware size (specially for hardware stream ...

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On  Data  Complexity  of  Distinguishing  Attacks  vs.  Message  Recovery  Attacks  on  Stream  Ciphers

On Data Complexity of Distinguishing Attacks vs. Message Recovery Attacks on Stream Ciphers

... on stream ciphers and analyze their ...RC4 stream cipher to demonstrate that the typical complexities for message recovery attack inferred in the literature are but under-estimates and the actual ...

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Linear Extension Cube Attack on Stream Ciphers Abstract: Keywords: 1. Introduction

Linear Extension Cube Attack on Stream Ciphers Abstract: Keywords: 1. Introduction

... cubes, the attacker can analysis the target cryptosystem of higher rounds on the basis of the attack results of a lower round. Motivated by the above observation, this paper proposes Linear Extension Cube Attack against ...

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Combined  Side-Channel   and  Fault  Analysis  Attack  on  Protected  Grain  Family  of  Stream  Ciphers

Combined Side-Channel and Fault Analysis Attack on Protected Grain Family of Stream Ciphers

... of stream ciphers (Grain v1 and Grain-128) by resynchronizing the cipher multiple times with the same value of the secret key and randomly generated different initialization vectors ...other stream ...

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On  Stream  Ciphers  with  Provable  Beyond-the-Birthday-Bound  Security  against  Time-Memory-Data  Tradeoff  Attacks

On Stream Ciphers with Provable Beyond-the-Birthday-Bound Security against Time-Memory-Data Tradeoff Attacks

... KSG-based stream ciphers and proved a sharp asymptotic (2/3)n-bound on the security of the Lizard -construction, which underlies the stream cipher Lizard [14], against generic chosen-IV key recovery ...

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Distributed  Time-Memory  Tradeoff  Attacks  on  Ciphers (with  Application  to  Stream  Ciphers   and  Counter  Mode)

Distributed Time-Memory Tradeoff Attacks on Ciphers (with Application to Stream Ciphers and Counter Mode)

... In [4], Biryukov and Shamir combined Hellman’s table and the BG tradeoff use of data to develop a new tradeoff involving time, memory, and data, applicable to stream ciphers. In the BS tradeoff, the Hellman ...

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On  Lightweight  Stream  Ciphers  with  Shorter  Internal  States

On Lightweight Stream Ciphers with Shorter Internal States

... The design of Sprout is an adaptation of the basic design used for the Grain family of stream ciphers [25,1,26,24]. More precisely, we used Grain 128a as the starting point as this is the newest member of ...

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A  Note  on  Stream  Ciphers  that  Continuously  Use  the  IV

A Note on Stream Ciphers that Continuously Use the IV

... designing stream ciphers which resist TMD-TO inner state recovery ...Sprout-like ciphers (i.e., ciphers which continuously use the secret key) against TMD-TO distinguishing attacks, we have ...

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Boolean  functions  for  homomorphic-friendly  stream  ciphers

Boolean functions for homomorphic-friendly stream ciphers

... and many terms. For example, the multiplicative depth of AES is often too large, and its additive depth is still more, to efficiently evaluate it homomorphically. Thus, other symmetric encryption schemes have been ...

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Attacks  in  Stream  Ciphers:  A  Survey

Attacks in Stream Ciphers: A Survey

... We will discuss about the most importants attacks for stream ciphers. We will present the most importante works in the area, explain the attack and give an exam- ple of application. We selected nine ...

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Investigations of cellular automata-based stream ciphers

Investigations of cellular automata-based stream ciphers

... Rochester Institute of Technology RIT Scholar Works Theses Thesis/Dissertation Collections 2008 Investigations of cellular automata-based stream ciphers Joseph S.. Testa Follow this and [r] ...

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SOBER Family of Stream Ciphers: A Review

SOBER Family of Stream Ciphers: A Review

... SOBER,SOBER II,S16,S32,SOBER t-8,t-16 and t-32 utilize native processor operations on integer data items, but are expected to accept keys which are simply strings of bytes, and to produce a stream of bytes as ...

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Design of Block Ciphers and Stream Ciphers Using Cryptographic Algorithm

Design of Block Ciphers and Stream Ciphers Using Cryptographic Algorithm

... The protocol used is Counter Mode with Cipher Block Chaining Message Authentication Code (CCMP), provides smaller area, resources and better throughput.. The CCM protocol is an encrypti[r] ...

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