TWIS – A Lightweight Block Cipher

Ojha, Shri Kant; Kumar, Naveen; Jain, Kritika; Sangeeta, .

doi:10.1007/978-3-642-10772-6_21

Cited by 28 publications

(18 citation statements)

References 6 publications

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“…PRESENT [9], HIGHT [14], mCrypton [21], DESL [19], CGEN [28], MIBS [15], KATAN & KTANTAN [10], TWIS [23], SEA [30] etc. All of these ciphers are designed and targeted specifically for extremely constrained environments such as RFID tags and sensor networks.…”

Section: Introductionmentioning

confidence: 99%

LBlock: A Lightweight Block Cipher

Zhang

2011

Lecture Notes in Computer Science

420

297

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Abstract. In this paper, we propose a new lightweight block cipher called LBlock. Similar to many other lightweight block ciphers, the block size of LBlock is 64-bit and the key size is 80-bit. Our security evaluation shows that LBlock can achieve enough security margin against known attacks, such as differential cryptanalysis, linear cryptanalysis, impossible differential cryptanalysis and related-key attacks etc. Furthermore, LBlock can be implemented efficiently not only in hardware environments but also in software platforms such as 8-bit microcontroller. Our hardware implementation of LBlock requires about 1320 GE on 0.18 µm technology with a throughput of 200 Kbps at 100 KHz. The software implementation of LBlock on 8-bit microcontroller requires about 3955 clock cycles to encrypt a plaintext block.

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Section: Introductionmentioning

confidence: 99%

LBlock: A Lightweight Block Cipher

Zhang

2011

Lecture Notes in Computer Science

420

297

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“…The option is turned off when working on single bit leakage models. 47.00 ) respectively. Full version of LBlock has been attacked using single bit side information after 8 rounds with a complexity of O(2 55 ).…”

Section: Fig 2 Cube Attack Implementation Architecturementioning

confidence: 93%

“…Mroczkowski and Szmidt have attacked the Courtois Toy Cipher CTC, designed by Courtois [39] against the cube attack [40,41]. Lightweight block ciphers which are not evaluated against the cube attack so far include LED [42], EPCBC [43], PRINCE [44], Piccolo [45], mCrypton [46], TWIS [47], MIBS [48], CGEN [49], PRINTcipher [50], KLEIN [51], FOX [52], HIGHT [53], ICEBERG [54], LCASE [55], MISTY [56], PUFFIN [57], SEA [58], TEA [59] and CLEFIA [60].…”

Section: Introductionmentioning

confidence: 99%

On the Security of LBlock against the Cube Attack and Side Channel Cube Attack

Islam

Afzal

Rashdi

2013

Security Engineering and Intelligence Informatics

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Abstract. In this research, a recently proposed lightweight block cipher LBlock, not tested against the cube attack has been analyzed. 7, 8 and 9 round LBlock have been successfully attacked with complexities of O(2 10.76 ), O(2 11.11 ) and O(2 47.00 ) respectively. For the case of side channel cube attack, full version of LBlock has been attacked using a single bit leakage model with the complexity of O(2 55.00 ) cipher evaluations. For this purpose, a generic practical platform has been developed to test various stream and block ciphers against the latest cube attack.

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“…Symmetric-key algorithms, especially block ciphers, still play an important role in the security of embedded systems. Recently, a lot of block ciphers suitable for these environments have been designed, such as PRESENT [1], MIBS [8], KATAN & KTANTAN [4], TWIS [10], PRINT [9], LBlock [13], KLEIN [6], LED [7] etc.…”

Section: Introductionmentioning

confidence: 99%

Biclique Cryptanalysis of Reduced-Round Piccolo Block Cipher

Wang

2012

Information Security Practice and Experience

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Abstract. Piccolo is a lightweight block cipher, with a fixed 64-bit block size and variable key length 80-or 128-bit, which was proposed at CHES 2011. The iterative structure of Piccolo is a variant of Generalized Feistel Network. The transformation utilizing different-size-word based permutation improves diffusion property of Piccolo and the simple key schedule algorithm reduces hardware costs. By analyzing the distribution of the subkeys, we present a biclique cryptanalysis of full round Piccolo-80 without postwhitening keys and 28-round Piccolo-128 without prewhitening keys. The attacks are respectively with data complexity of 2 48 and 2 24chosen ciphertexts, and with time complexity of 2 78.95 and 2 126.79 encryptions.

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TWIS – A Lightweight Block Cipher

Cited by 28 publications

References 6 publications

LBlock: A Lightweight Block Cipher

LBlock: A Lightweight Block Cipher

On the Security of LBlock against the Cube Attack and Side Channel Cube Attack

Biclique Cryptanalysis of Reduced-Round Piccolo Block Cipher

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