| Presentation | 2010-07-02 An Efficient Broadcast Encryption with Personalized Messages Go OHTAKE, Goichiro HANAOKA, Kazuto OGAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In broadcasting services, a broadcaster may transmit not only a broadcast content but also a personalized message for each user, both of which are encrypted. Current broadcasting services employ some symmetric key encryption schemes. For the personalized message encryption, all of the user's secret key must be managed securely. On the other hand, several broadcast encryption schemes using a public key have been proposed. A broadcaster encrypts a message for some subset S of users with a public key and any user in S can decrypt the broadcast with his/her private key. However, it is difficult to encrypt a personalized message and transmit it to each user efficiently. In this paper, we propose a broadcast encryption scheme which has a personalized message encryption function. We show that our scheme is efficient in terms of ciphertext size. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital broadcasting / copyright protection / Conditional Access System (CAS) / broadcast encryption |
| Paper # | ISEC2010-31,SITE2010-27,ICSS2010-37 |
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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) | An Efficient Broadcast Encryption with Personalized Messages |
| Sub Title (in English) | |
| Keyword(1) | digital broadcasting |
| Keyword(2) | copyright protection |
| Keyword(3) | Conditional Access System (CAS) |
| Keyword(4) | broadcast encryption |
| 1st Author's Name | Go OHTAKE |
| 1st Author's Affiliation | NHK Science and Technology Research Laboratories() |
| 2nd Author's Name | Goichiro HANAOKA |
| 2nd Author's Affiliation | National Institute of Advanced Industrial Science and Technology |
| 3rd Author's Name | Kazuto OGAWA |
| 3rd Author's Affiliation | NHK Science and Technology Research Laboratories |
| Date | 2010-07-02 |
| Paper # | ISEC2010-31,SITE2010-27,ICSS2010-37 |
| Volume (vol) | vol.110 |
| Number (no) | 115 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |