@inproceedings{5e263497145548b28f3f78109440866f,
title = "Impossible differential cryptanalysis of reduced round XTEA and TEA",
abstract = "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.",
author = "Dukjae Moon and Kyungdeok Hwang and Wonil Lee and Sangjin Lee and Jongin Lim",
year = "2002",
doi = "10.1007/3-540-45661-9_4",
language = "English",
isbn = "9783540440093",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer Verlag",
pages = "49--60",
editor = "Joan Daemen and Vincent Rijmen",
booktitle = "Fast Software Encryption - 9th International Workshop, FSE 2002, Revised Papers",
note = "9th International Workshop on Fast Software Encryption, FSE 2002 ; Conference date: 04-02-2002 Through 06-02-2002",
}