Feedback with carry shift registers and (in-depth) security of ciphers based on this primitive

Ali, Arshad

doi:10.1109/ibcast.2018.8312260

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…Cryptanalysis of stream ciphers using F-FCSR were discussed in [14,15]. Design principles of stream ciphers using FCSR presented in [16][17][18][19].…”

Section: Feedback With Carry Shift Registermentioning

confidence: 99%

Alternating Step Generator Using FCSR and LFSRs: A New Stream Cipher

Yerukala¹,

Nalla²,

Padmavathi³

et al. 2019

IJIES

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Data encryption play major role in all communications via internet, wireless and wired media. Stream ciphers are used for data encryption due to their low error propagation. This paper presents a new design of stream cipher for generating pseudorandom keystream with two LFSR`s, one FCSR and a non-linear combiner function, which is a bit oriented based on alternating step generator (ASGF). In our design two LFSR`s are controlled by the FCSR . ASGF has two stages one is initialization and the other is key stream generation. We performed NIST test suite for checking randomness on the keystream of length 1500000 generated by our design with 99% confidence level. Keystream of ASGF passes almost all NIST tests for randomness and the results are tabulated. For fixed extreme patterns of key and IV, ASGF is giving random sequence. Throughput of our proposed stream cipher ASGF is 4364 cycles/byte. Throughput comparison of ASGF with existing stream ciphers A5/1, A5/2 and RC4 are presented. It is not possible to mount brute force attack on ASGF due to large key space 2 192 . Security analysis of ASGF against exhaustive search, Algebraic attack, distinguishing attack is also presented in this paper.

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“…Cryptanalysis of stream ciphers using F-FCSR were discussed in [14,15]. Design principles of stream ciphers using FCSR presented in [16][17][18][19].…”

Section: Feedback With Carry Shift Registermentioning

confidence: 99%

Alternating Step Generator Using FCSR and LFSRs: A New Stream Cipher

Yerukala¹,

Nalla²,

Padmavathi³

et al. 2019

IJIES

View full text Add to dashboard Cite

show abstract

“…The main difference is the fact that the elementary additions are not modulo 2 additions but with the propagation of carries. FCSRs have been used in the design of stream ciphers [30], generating pseudo-random numbers [31], and can be efficiently implemented in parallel architectures [32].…”

Section: Introductionmentioning

confidence: 99%

Representations of Generalized Self-Shrunken Sequences

et al. 2020

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Output sequences of the cryptographic pseudo-random number generator, known as the generalized self-shrinking generator, are obtained self-decimating Pseudo-Noise (PN)-sequences with shifted versions of themselves. In this paper, we present three different representations of this family of sequences. Two of them, the p and G-representations, are based on the parameters p and G corresponding to shifts and binary vectors, respectively, used to compute the shifted versions of the original PN-sequence. In addition, such sequences can be also computed as the binary sum of diagonals of the Sierpinski’s triangle. This is called the B-representation. Characteristics and generalities of the three representations are analyzed in detail. Under such representations, we determine some properties of these cryptographic sequences. Furthermore, these sequences form a family that has a group structure with the bit-wise XOR operation.

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Survey of Various Techniques for Voice Encryption

Prasad

Mishra

2021

Second International Conference on Sustainable Technologies for Computational Intelligence

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Feedback with carry shift registers and (in-depth) security of ciphers based on this primitive

Cited by 4 publications

References 25 publications

Alternating Step Generator Using FCSR and LFSRs: A New Stream Cipher

Alternating Step Generator Using FCSR and LFSRs: A New Stream Cipher

Representations of Generalized Self-Shrunken Sequences

Survey of Various Techniques for Voice Encryption

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