New types of cryptanalytic attacks using related keys
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
Related-key cryptanalysis of 3-WAY, Biham-DES, CAST, DES-X, NewDES, RC2, and TEA
ICICS '97 Proceedings of the First International Conference on Information and Communication Security
Differential Cryptanalysis of DES-like Cryptosystems
CRYPTO '90 Proceedings of the 10th Annual International Cryptology Conference on Advances in Cryptology
Higher Order Differential Attak of CAST Cipher
FSE '98 Proceedings of the 5th International Workshop on Fast Software Encryption
Cryptanalysis of Skipjack reduced to 31 rounds using impossible differentials
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
New results on the genetic cryptanalysis of TEA and reduced-round versions of XTEA
New Generation Computing - Evolutionary computation
Automated design of a lightweight block cipher with Genetic Programming
International Journal of Knowledge-based and Intelligent Engineering Systems - Genetic Programming An Emerging Engineering Tool
Cryptologia
Chai-Tea, Cryptographic Hardware Implementations of xTEA
INDOCRYPT '08 Proceedings of the 9th International Conference on Cryptology in India: Progress in Cryptology
Meet-in-the-middle attacks on reduced-round XTEA
CT-RSA'11 Proceedings of the 11th international conference on Topics in cryptology: CT-RSA 2011
New impossible differential and known-key distinguishers for the 3D cipher
ISPEC'11 Proceedings of the 7th international conference on Information security practice and experience
A weak key class of XTEA for a related-key rectangle attack
VIETCRYPT'06 Proceedings of the First international conference on Cryptology in Vietnam
Impossible differential cryptanalysis of the lightweight block ciphers TEA, XTEA and HIGHT
AFRICACRYPT'12 Proceedings of the 5th international conference on Cryptology in Africa
Three-subset meet-in-the-middle attack on reduced XTEA
AFRICACRYPT'12 Proceedings of the 5th international conference on Cryptology in Africa
Zero correlation linear cryptanalysis with reduced data complexity
FSE'12 Proceedings of the 19th international conference on Fast Software Encryption
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We present the impossible differential cryptanalysis of the block cipher XTEA[7] and TEA[6]. The core of the design principle of these block ciphers is an easy implementation and a simplicity. But this simplicity dose not offer a large diffusion property. Our impossible differential cryptanalysis of reduced-round versions of XTEA and TEA is based on this fact. We will show how to construct a 12-round impossible characteristic of XTEA. We can then derive 128-bit user key of the 14- round XTEA with 262.5 chosen plaintexts and 285 encryption times using the 12-round impossible characteristic. In addition, we will show how to construct a 10-round impossible characteristic of TEA. Then we can derive 128-bit user key of the 11-round TEA with 252.5 chosen plaintexts and 284 encryption times using the 10-round impossible characteristic.