| Presentation | 2010-07-02 Cost Estimates of CNTW Attack against EMV Signatures Yumi SAKEMI, Tetsuya IZU, Masahiko TAKENAKA, Yasuyuki NOGAMI, Yoshitaka MORIKAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Specification of EMV signatures is an ISO/IEC 9796-2 compliant format with extra redundancy, and used for certifying credit cards. At CRYPTO 2009, Coron, Naccache, Tibouchi, and Weinmann proposed a new forgery attack against the signature ISO/IEC 9796-2. They also discussed the possibility when the attack is applied to the EMV signatures. As a results, they concluded that the attack can not forge them for operational reason. However, since they estimated the attack's cost under a specific condition, it is difficult to evaluate the attack's threat under other conditions. This paper gives the detailed cost of the attack under all conditions based on the fixed data in a message. Then, the conditions under which the attack can forge EMV signature with low costs are shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital signatures / forgery / ISO/IEC 9796-2 / EMV |
| Paper # | ISEC2010-36,SITE2010-32,ICSS2010-42 |
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| Conference Information | |
| Committee | ICSS |
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| Conference Date | 2010/6/24(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 and Communication System Security (ICSS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Cost Estimates of CNTW Attack against EMV Signatures |
| Sub Title (in English) | |
| Keyword(1) | digital signatures |
| Keyword(2) | forgery |
| Keyword(3) | ISO/IEC 9796-2 |
| Keyword(4) | EMV |
| 1st Author's Name | Yumi SAKEMI |
| 1st Author's Affiliation | Okayama University() |
| 2nd Author's Name | Tetsuya IZU |
| 2nd Author's Affiliation | FUJITSU Lab. |
| 3rd Author's Name | Masahiko TAKENAKA |
| 3rd Author's Affiliation | FUJITSU Lab. |
| 4th Author's Name | Yasuyuki NOGAMI |
| 4th Author's Affiliation | Okayama University |
| 5th Author's Name | Yoshitaka MORIKAWA |
| 5th Author's Affiliation | Okayama University |
| Date | 2010-07-02 |
| Paper # | ISEC2010-36,SITE2010-32,ICSS2010-42 |
| Volume (vol) | vol.110 |
| Number (no) | 115 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |