| Presentation | 2003/3/20 XOAEPX_<-**> : The possibility of modification on OAEP Yuichi KOMANO, Taro YAMAZAKI, Kazuo OHTA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | OAEP+ and OAEP++, proposed by Shoup in 2001, and Kobara and Imai in 2002, respectively, in order to realize tighter security than the original OAEP scheme. In this paper, we consider the security level on 72 variants of OAEP (including OAEP+ and OAEP++), which are modified by the construction of the redundancy, its location, and the input-range of the encryption permutation. Moreover we specify the cause(s) of the security proof failure for the insecure variants, and give the concrete attack procedures to them. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OAEP / OAEP+ / OAEP++ / provably secure / reduction / Padding / IND-CPA-CCA1-CCA2 |
| Paper # | IT2002-90,ISEC2002-148,SST2002-196,ITS2002-173 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2003/3/20(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) | XOAEPX_<-**> : The possibility of modification on OAEP |
| Sub Title (in English) | |
| Keyword(1) | OAEP |
| Keyword(2) | OAEP+ |
| Keyword(3) | OAEP++ |
| Keyword(4) | provably secure |
| Keyword(5) | reduction |
| Keyword(6) | Padding |
| Keyword(7) | IND-CPA-CCA1-CCA2 |
| 1st Author's Name | Yuichi KOMANO |
| 1st Author's Affiliation | Waseda University() |
| 2nd Author's Name | Taro YAMAZAKI |
| 2nd Author's Affiliation | Waseda University |
| 3rd Author's Name | Kazuo OHTA |
| 3rd Author's Affiliation | The University of Electro-Communications |
| Date | 2003/3/20 |
| Paper # | IT2002-90,ISEC2002-148,SST2002-196,ITS2002-173 |
| Volume (vol) | vol.102 |
| Number (no) | 744 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |