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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/10905
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| タイトル: | Constant-Ciphertext-Size Dual Policy Attribute Based Encryption |
| 著者: | Miyaji, Atsuko
Tran, Phuong V.X. |
| キーワード: | Attribute-based Encryption
Dual Policy
Constant Ciphertext Length Size |
| 発行日: | 2012 |
| 出版者: | Springer |
| 誌名: | Lecture Notes in Computer Science |
| 巻: | 7672 |
| 開始ページ: | 400 |
| 終了ページ: | 413 |
| DOI: | 10.1007/978-3-642-35362-8_30 |
| 抄録: | Dual-Policy Attribute Based Encryption (DP-ABE), proposed in 2009, is a combination of two variants, Ciphertext Policy-ABE (CP-ABE) and Key Policy-ABE (KP-ABE), where an encryptor can associate the data simultaneously with both a set of objective attributes and of subjective access policies. Or, a user is given a private key assigned simultaneously for both a set of objective attributes and a subjective access policy. A major problem of the above DP-ABE scheme is the ciphertext size linear to the number of attributes while the LSSS access structure can be assumed. We propose two novel DP-ABEs, which achieve constant-size ciphertext, regardless of the number of attributes in a logical AND data access policy with wildcards. We present two constructions: the first scheme under the q-Bilinear Diffie Hellman Exponent (q-BDHE) and the second scheme under the Decisional Bilinear-Diffie-Hellman assumptions (DBDH). |
| Rights: | This is the author-created version of Springer, Atsuko Miyaji and Phuong V.X. Tran, Lecture Notes in Computer Science, 7672, 2012, 400-413. The original publication is available at www.springerlink.com, http://dx.doi.org/10.1007/978-3-642-35362-8_30 |
| URI: | http://hdl.handle.net/10119/10905 |
| 資料タイプ: | author |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
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このアイテムのファイル:
| ファイル |
記述 |
サイズ | 形式 |
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| 18726.pdf | | 89Kb | Adobe PDF | 見る/開く |
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