Fast modular multiplications based on precomputations with lessmemory |
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| Authors: | Tsuruoka Y Koyama K |
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| Affiliation: | NTT Commun. Sci. Labs., Kyoto; |
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| Abstract: | A fast modular multiplication method based on precomputation is proposed for use in public-key cryptosystems. The proposed method can compute the Montgomery reduction TR1 mod N only through additions. Furthermore, this is 6.4 times faster than the Montgomery method implemented in modular reduction with a 512 bit modulus when 2.1 MB of memory is used. This memory size is also only 1/4 of that required in the method proposed by Takenaka et al |
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