| Presentation | 2006-03-17 A Construction of Authenticated Encryption Algorithm Based on Stream Cipher MUGI and Its Security Dai WATANABE, Toshinobu KANEKO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Authenticated Encryption (AE) is a mechanism to encapsulating a data by encrypting it and attaching its message authentication code. In this paper we examine to construct an AE algorithm based on MUGI, which was designed by Hitachi. We show that it is possible to construct an AE with only an additional (64-bitwise) XORing. Despite of its simplisity, a MAC forgery attack based on differential cryptanalysis is successful with the probability 2^<-102> so that it looks impractical to forge the communication channel encapsulated by the AE. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Stream cipher / MUGI / authenticated encryption / differential cryptanalysis |
| Paper # | IT2005-107,ISEC2005-164,WBS2005-121 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2006/3/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Construction of Authenticated Encryption Algorithm Based on Stream Cipher MUGI and Its Security |
| Sub Title (in English) | |
| Keyword(1) | Stream cipher |
| Keyword(2) | MUGI |
| Keyword(3) | authenticated encryption |
| Keyword(4) | differential cryptanalysis |
| 1st Author's Name | Dai WATANABE |
| 1st Author's Affiliation | Systems Development Laboratory, Hitachi, Ltd.() |
| 2nd Author's Name | Toshinobu KANEKO |
| 2nd Author's Affiliation | Science University of Tokho |
| Date | 2006-03-17 |
| Paper # | IT2005-107,ISEC2005-164,WBS2005-121 |
| Volume (vol) | vol.105 |
| Number (no) | 664 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |