| Presentation | 1997/7/19 On Key Distribution Scheme for Secure Broadcast Communication Systems Mototsugu Nishioka, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We proposed the key distribution scheme for secure broadcast communication systems such that (a) Each entity has an individual key, (b) The length of the key distribution data is less than O(n), where n is the number of receivers, (c) It is secure against the collaborative attack by entities. In this paper, we show that the above proposed scheme (scheme A) has a problem that it needs to satisfy a complicated condition in the key generation to be secure against the collaborative attack, and propose a new key distribution scheme that gains safety against the collaborative attack from a different viewpoint. Our new scheme has the following features: (1) The problem in the scheme A does not occur in our new scheme, (2) It has no threshold that the collaborative attack is effective, (3) It is efficient for senders and receivers. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | secure broadcast communication system / key distribution / collaborative attack |
| Paper # | ISEC97-25 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1997/7/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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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) | On Key Distribution Scheme for Secure Broadcast Communication Systems |
| Sub Title (in English) | |
| Keyword(1) | secure broadcast communication system |
| Keyword(2) | key distribution |
| Keyword(3) | collaborative attack |
| 1st Author's Name | Mototsugu Nishioka |
| 1st Author's Affiliation | Systems Development Laboratory, Hitachi, Ltd.() |
| Date | 1997/7/19 |
| Paper # | ISEC97-25 |
| Volume (vol) | vol.97 |
| Number (no) | 182 |
| Page | pp.pp.- |
| #Pages | 12 |
| Date of Issue | |