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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dyka, Z. Langendoerfer, P. |
| Copyright Year | 2005 |
| Description | Author affiliation: IHP, Frankfurt, Germany (Dyka, Z.; Langendoerfer, P.) |
| Abstract | Securing communication channels is especially needed in wireless environments, but applying cipher mechanisms in software is limited by the calculation and energy resources of mobile devices. If hardware is applied to realize cryptographic operations, cost becomes an issue. We describe an approach which tackles all three of these points. We implemented a hardware accelerator for polynomial multiplication in extended Galois fields (GF) applying Karatsuba's method iteratively. With this approach, the area required is reduced to 2.1 mm/sup 2/ in comparison to 6.2 mm/sup 2/ for the standard application of Karatsuba's method, i.e., for its recursive application. Our approach also reduces the energy consumption to 60 per cent of the original approach. The price we have to pay for this achievement is an increased execution time. In our implementation, a polynomial multiplication takes 3 clock cycles, whereas the recursive Karatsuba approach needs only one clock cycle. However, considering area, energy and calculation speed, we are convinced that the benefits of our approach outweigh its drawback. |
| Sponsorship | European Design and Autom. Assoc. EDA Consortium IEEE Comput. Soc. TTTC, IEEE Comput. Soc. DATC, ECSI, ACM SIGDA, RAS |
| Starting Page | 70 |
| Ending Page | 75 |
| File Size | 186232 |
| Page Count | 6 |
| File Format | |
| ISBN | 0769522882 |
| ISSN | 15301591 |
| DOI | 10.1109/DATE.2005.67 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-03-07 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Hardware Elliptic curve cryptography Polynomials Clocks Communication channels Communication system security Energy resources Costs Galois fields Energy consumption Karatsuba's formula Extended Galois fields polynomial multiplication Elliptic Curve Cryptography |
| Content Type | Text |
| Resource Type | Article |
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