Presentation | 2006-12-13 ID-based Encryption Scheme with Two Dimensional Hierarchical Structure Based on the l-BDHE Assumption Kousuke MIYASHITA, Wataru KISHIMOTO, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Users with a hierarchical structure are represented by a tree structure in many cases. In this paper, we consider a two dimensional space with x, y coordinate, each integer point of which corresponds to a user in check. By using it we represent a hierarchical structure of user with two dimensional direction of x, y coordinate in which a user with coordinate less or equal to that of another user in both direction is an ancestor of it. We propose an ID-based encryption scheme in which ancestors can decrypt a ciphertext to a descendant, but the sender can control which ancestors can decrypt it with x, y coordinate. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | ID-based encryption / l-BDHE Assumption / hierarchical structure / two dimensional space |
Paper # | ISEC2006-104 |
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Committee | ISEC |
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Conference Date | 2006/12/6(1days) |
Place (in Japanese) | (See Japanese page) |
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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) | ID-based Encryption Scheme with Two Dimensional Hierarchical Structure Based on the l-BDHE Assumption |
Sub Title (in English) | |
Keyword(1) | ID-based encryption |
Keyword(2) | l-BDHE Assumption |
Keyword(3) | hierarchical structure |
Keyword(4) | two dimensional space |
1st Author's Name | Kousuke MIYASHITA |
1st Author's Affiliation | Chiba University Graduate School of Science and Technology() |
2nd Author's Name | Wataru KISHIMOTO |
2nd Author's Affiliation | Chiba University Graduate School of Science and Technology |
Date | 2006-12-13 |
Paper # | ISEC2006-104 |
Volume (vol) | vol.106 |
Number (no) | 411 |
Page | pp.pp.- |
#Pages | 7 |
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