EPCBC - A Block Cipher Suitable for Electronic Product Code Encryption

Resource efficient cryptographic p fundamental for realizing both security a embedded systems like RFID (Radio-Frequen tags and sensor nodes. Among those primi block cipher plays a major role to secure RF the common lightweight block ciphers is PR paper, we attended both conditions of PRES box S-box and those conditions of 4-bit studied and analyzed thoroughly in relatio differential cryptanalysis. The results sho conflict in one of the conditions of PRESENT Keywords: S-box, PRESENT lightweight b cryptanalysis and differential cryptanalysis.I.

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“…For all ܽ ‫א‬ ଶ ସ and all non-zero ܾ ‫א‬ ସ such that wt (ο ୍ ) =wt (ο) =1 it hold that ୠ ୵ ሺሻ ൌ േͶ. [9] …”

Section: T S-boxmentioning

confidence: 98%

Security of Present S-box

AlDabbagh

Shaikhli

2012

2012 International Conference on Advanced Computer Science Applications and Technologies (ACSAT)

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“…For example, PRESENT [7] and EPCBC [28] use 4 × 4 S-boxes, and PrintCipher [20] uses 3 × 3 S-boxes. All these schemes have bitwise permutation diffusion layers.…”

Section: Applications To the Block Cipher Present-80mentioning

confidence: 99%

Automatic Security Evaluation of Block Ciphers with S-bP Structures Against Related-Key Differential Attacks

Sun

Song

et al. 2014

Information Security and Cryptology

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Abstract. Counting the number of active S-boxes is a common way to evaluate the security of symmetric key cryptographic schemes against differential attack. Based on Mixed Integer Linear Programming (MILP), Mouha et al proposed a method to accomplish this task automatically for word-oriented symmetric-key ciphers with SPN structures. However, this method can not be applied directly to block ciphers of SPN structures with bitwise permutation diffusion layers (S-bP structures), due to its ignorance of the diffusion effect derived collaboratively by nonlinear substitution layers and bitwise permutation layers. Moreover, the MILP constrains presented in Mouha et al's method are not enough to describe the differential propagation behaviour of a linear diffusion layer constructed from a non-MDS code, even an almost MDS code. In this paper we extend Mouha et al's method for S-bP structures by introducing new representations for exclusive-or (XOR) differences to describe bit/word level differences simultaneously and by taking the collaborative diffusion effect of S-boxes and bitwise permutations into account. Our method is applied to the block cipher PRESENT-80, an international standard for lightweight symmetric key cryptography, to automatically evaluate its security against differential attacks. We obtain lower bounds on the numbers of active S-boxes in the single-key model for full 31-round PRESENT-80 and in related-key model for round-reduced PRESENT-80 up to 12 rounds, and therefore automatically prove that the full-round PRESENT-80 is secure against single-key differential attack, and the cost of related-key differential attack on the full-round PRESENT-80 is close to that of an exhaustive search: the best related-key differential characteristic for full PRESENT-80 is upper bounded by 2 −72 .

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“…But there is few existing cipher with block size of 96-bit. Lightweight block cipher EPCBC [4] was proposed by Yap et al, in CANS 2011 International Conference. EPCBC is based on a generalized PRESENT [6] for the main cipher structure and customized key schedule design with block size 48 and 96 bits.…”

Section: Introductionmentioning

confidence: 99%

FPGA Implementations of Cube Neutral Key Bits Analysis on Block Cipher EPCBC

Wei

2015

2015 2nd International Conference on Information Science and Control Engineering

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This paper aims to present cube neutral bit tester on EPCBC. Cube neutral bit tester is a generic class of methods for building distinguishers, which find function approximating F(K,V) that depend on less than all key bits. We demonstrate how to use an efficient FPGA implementation cube neutral bit tester on the block cipher EPCBC. Different from the previous kinds of attack, the primary purpose of our study is to detect whether a single key bit k i influences the output of F or not. Our experiment showed that reduced to 8-round for EPCBC-48 and 8-round for EPCBC-96 output cumulative bits involve in all bits information of master key, there is no neutral key bits. The results indicate that the full-round EPCBC is steady for key information diffusivity and confusion to resist the classic cube attack.

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EPCBC - A Block Cipher Suitable for Electronic Product Code Encryption

Cited by 37 publications

References 35 publications

Security of Present S-box

Security of Present S-box

Automatic Security Evaluation of Block Ciphers with S-bP Structures Against Related-Key Differential Attacks

FPGA Implementations of Cube Neutral Key Bits Analysis on Block Cipher EPCBC

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