A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf
.
Attacking Reduced-Round Versions of the SMS4 Block Cipher in the Chinese WAPI Standard
[chapter]
2007
Lecture Notes in Computer Science
SMS4 is a 32-round block cipher with a 128-bit block size and a 128-bit user key. It is used in WAPI, the Chinese WLAN national standard. In this paper, we present a rectangle attack on 14-round SMS4, and an impossible differential attack on 16-round SMS4. These are better than any previously known cryptanalytic results on SMS4 in terms of the numbers of attacked rounds.
doi:10.1007/978-3-540-77048-0_24
fatcat:na3u7bpagjalnc5qcpmandq564