| Presentation | 2004-07-20 A Hardware Organization of High-Radix Modular Multiplication for RSA Cryptosystem Yi GE, Takao SAKURAI, Koki ABE, Shuichi SAKAI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Hardware organized modular multiplication based on division algorithm is one of the effective methods used for RSA encryption/decryption. This paper generalizes the hardware organization of the modular multiplication based on the higher-radix SRT division algorithm, and describes the area/time trade-off of the organization. For the number representation we used the signed-digit number system and for selecting the multiple of modular we employed the arithmetic operation instead of the conventional look-up table. The method based on the arithmetic operation is suitable for keeping the same structure over wide range of high radices. The result of the evaluation revealed that a radix-16 multiplier produced 1.5 times speedup at about 1.6 times area cost compared with radix-4 multiplier. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | RSA cryptosystem / modular multiplication / SRT division / high-radix / signed-digit number |
| Paper # | ISEC2004-15 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2004/7/13(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 Hardware Organization of High-Radix Modular Multiplication for RSA Cryptosystem |
| Sub Title (in English) | |
| Keyword(1) | RSA cryptosystem |
| Keyword(2) | modular multiplication |
| Keyword(3) | SRT division |
| Keyword(4) | high-radix |
| Keyword(5) | signed-digit number |
| 1st Author's Name | Yi GE |
| 1st Author's Affiliation | Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo() |
| 2nd Author's Name | Takao SAKURAI |
| 2nd Author's Affiliation | Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo |
| 3rd Author's Name | Koki ABE |
| 3rd Author's Affiliation | Department of Computer Science. The University of Electro-Communications |
| 4th Author's Name | Shuichi SAKAI |
| 4th Author's Affiliation | Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo |
| Date | 2004-07-20 |
| Paper # | ISEC2004-15 |
| Volume (vol) | vol.104 |
| Number (no) | 199 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |